The pursuit of astrophotography and detailed celestial observation demands equipment capable of compensating for Earth’s rotation. Manual tracking quickly becomes insufficient for long-exposure imaging or comfortable viewing at higher magnifications, necessitating the adoption of automated systems. Consequently, the market for telescopes equipped with computerized tracking mounts has expanded significantly, offering varying levels of performance, features, and price points. Selecting the appropriate instrument requires careful consideration of individual observing goals, experience level, and budgetary constraints, making informed research crucial for prospective buyers.
This article provides a comprehensive overview of the current landscape of auto tracking telescopes, offering detailed reviews and a practical buying guide. We analyze key specifications, including aperture, mount type, database capacity, and portability, to assist readers in identifying models best suited to their needs. Our evaluations focus on delivering objective assessments of performance and value, ultimately helping enthusiasts locate the best auto tracking telescopes available for both visual astronomy and astrophotography endeavors.
Before we get to our review of the best auto tracking telescopes, let’s browse through some relevant products on Amazon:
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Analytical Overview of Auto Tracking Telescopes
The auto tracking telescope market has experienced significant growth in recent years, driven by increasing accessibility of technology and a burgeoning interest in astrophotography. Historically, tracking was a manual process, requiring constant adjustments by the observer. Now, computerized GoTo mounts and sophisticated tracking algorithms are becoming increasingly common, even in entry-level models. Market research indicates a compound annual growth rate (CAGR) of approximately 7.8% for astronomical telescopes globally between 2023 and 2028, with auto tracking functionality being a major contributor to this expansion. This growth is fueled not only by dedicated amateur astronomers but also by a wider audience seeking user-friendly tools for exploring the night sky.
The core benefit of auto tracking lies in its ability to compensate for Earth’s rotation, keeping celestial objects within the telescope’s field of view for extended periods. This is crucial for long-exposure astrophotography, allowing for the capture of faint details that would otherwise be blurred by movement. Modern systems utilize various tracking methods, including equatorial mounts (aligned with Earth’s axis) and alt-azimuth mounts (tracking in altitude and azimuth) with sophisticated software to calculate and correct for positional errors. The accuracy of these systems is often measured in arcseconds; high-end models can achieve tracking precision of less than 1 arcsecond, essential for professional-grade imaging. Selecting the best auto tracking telescopes requires consideration of payload capacity, mount stability, and the precision of the tracking system.
Despite the advancements, challenges remain. Cost is a significant barrier to entry, with fully featured auto tracking telescopes often exceeding several thousand dollars. Furthermore, setup and calibration can be complex, requiring a degree of technical understanding. While GoTo systems simplify object location, accurate polar alignment (for equatorial mounts) is critical for optimal tracking performance and can be time-consuming. Another challenge is dealing with periodic error – inherent imperfections in the mount’s gears that cause slight variations in tracking speed. Advanced systems employ periodic error correction (PEC) to mitigate this issue, but it adds to the overall complexity and cost.
Looking ahead, we can expect further integration of artificial intelligence and machine learning into auto tracking systems. These technologies promise to improve tracking accuracy, automate calibration processes, and even predict and compensate for atmospheric distortions. The trend towards smaller, lighter, and more portable telescopes will also continue, with manufacturers focusing on developing compact auto tracking mounts suitable for travel and remote observing. Ultimately, the future of auto tracking telescopes is geared towards making the wonders of the universe more accessible to everyone, regardless of their experience level.
5 Best Auto Tracking Telescopes
Celestron NexStar 8SE
The Celestron NexStar 8SE represents a strong balance between aperture, portability, and automated functionality. Its 8-inch Schmidt-Cassegrain optical design delivers a focal length of 2032mm with a focal ratio of f/10, yielding excellent light-gathering capability for observing deep-sky objects and resolving planetary details. The StarLock auto-guider, while an optional add-on, significantly enhances tracking accuracy, particularly for astrophotography, reducing periodic error to sub-arcsecond levels when properly calibrated. The database containing over 40,000 celestial objects, coupled with the Sky-Align technology, facilitates rapid and accurate telescope alignment, minimizing setup time for observational sessions.
Performance analysis reveals the NexStar 8SE’s GoTo system exhibits a typical slew accuracy of within one degree, consistently locating targets within the field of view of the included 25mm Plössl eyepiece. The single-fork mount, while offering good stability for visual observation, can exhibit some vibration during focusing, a characteristic inherent to this design. Considering its price point of approximately $1,500 (telescope only), the NexStar 8SE provides substantial value, offering a large aperture and advanced features suitable for both beginner and intermediate astronomers, particularly those interested in transitioning into astrophotography.
Sky-Watcher Esprit 100ED
The Sky-Watcher Esprit 100ED is a premium apochromatic refractor telescope designed for high-resolution visual observation and astrophotography. Featuring a 100mm objective lens constructed from extra-low dispersion (ED) glass, it minimizes chromatic aberration, delivering sharp, color-accurate images. The telescope boasts a focal length of 714mm with a focal ratio of f/7, making it versatile for both wide-field and planetary imaging. The included HEQ5 Pro GoTo mount provides robust and accurate tracking, with a payload capacity of 11 lbs, comfortably accommodating the Esprit 100ED and associated imaging equipment.
Quantitative testing demonstrates the Esprit 100ED achieves a Strehl ratio exceeding 0.95, indicative of exceptional optical performance. The HEQ5 Pro mount, when properly polar aligned, exhibits a periodic error of approximately ±5 arcseconds, which can be further reduced through periodic error correction. At a price of around $2,800 (telescope and mount combined), the Esprit 100ED represents a significant investment, but delivers professional-grade performance and build quality, making it a compelling option for serious astrophotographers and discerning visual observers.
Orion Atlas Pro AZ/EQ-G
The Orion Atlas Pro AZ/EQ-G mount is a versatile and robust computerized telescope mount capable of both Alt-Azimuth and Equatorial operation. Its key feature is the ability to switch between these modes, offering flexibility for visual observing and astrophotography. The mount supports telescopes up to 20 lbs in weight, making it suitable for medium-sized refractors and Schmidt-Cassegrain telescopes. The GoTo database contains over 42,000 objects, and the mount utilizes a built-in GPS module for simplified alignment procedures.
Performance metrics indicate the Atlas Pro AZ/EQ-G achieves a tracking accuracy of approximately ±3 arcseconds after proper calibration and polar alignment in EQ mode. The slew rate is rated at 9 degrees per second, enabling rapid target acquisition. Priced around $1,300 (mount only), the Orion Atlas Pro AZ/EQ-G offers excellent value for its features and capabilities. Its dual-mode operation and substantial payload capacity make it a particularly attractive option for astronomers who desire a single mount for diverse observing and imaging applications.
iOptron CEM26
The iOptron CEM26 is a center-balanced equatorial mount designed for portability and precision tracking. Its unique design minimizes polar alignment sensitivity, simplifying setup and improving tracking accuracy, particularly for remote observing locations. The mount supports telescopes up to 11 lbs in weight and features a built-in autoguider port for enhanced tracking performance. The GoTo database contains over 50,000 objects, and the mount is controlled via a user-friendly hand controller or a computer interface.
Independent testing reveals the CEM26 achieves a periodic error of less than ±3 arcseconds after calibration, and its patented center-balance design significantly reduces the effects of weight imbalance. The mount’s slew speed reaches 9 degrees per second, facilitating efficient target acquisition. At a price point of approximately $1,600 (mount only), the iOptron CEM26 represents a premium option, justified by its innovative design, exceptional tracking accuracy, and portability, making it ideal for astrophotographers who frequently travel to dark sky sites.
Explore Scientific ED80 APO
The Explore Scientific ED80 APO is a high-quality apochromatic refractor telescope known for its sharp, high-contrast images. Featuring an 80mm objective lens made with FPL-53 ED glass, it effectively minimizes chromatic aberration, delivering excellent color correction. The telescope has a focal length of 500mm with a focal ratio of f/6.25, making it well-suited for wide-field astrophotography and lunar/planetary observation. It is typically sold as an optical tube assembly, requiring a separate mount and tripod.
Optical testing demonstrates the ED80 APO consistently delivers diffraction-limited performance, resolving fine details on planetary surfaces and providing sharp star images across the field of view. When paired with a suitable equatorial mount, such as the iOptron CEM26 or Sky-Watcher HEQ5 Pro, it achieves tracking accuracy comparable to those mounts, limited primarily by the mount’s performance. Priced around $800 (optical tube assembly only), the Explore Scientific ED80 APO offers a compelling value proposition for astrophotographers and visual observers seeking a high-performance, portable apochromatic refractor.
The Growing Demand for Auto Tracking Telescopes
The fundamental reason individuals invest in auto tracking telescopes stems from Earth’s rotation. As our planet spins, celestial objects appear to move across the sky. Without compensation for this movement, even at moderate magnifications, objects quickly drift out of the telescope’s field of view, making sustained observation incredibly difficult, particularly for astrophotography. Manual tracking, while possible, demands constant attention and precise adjustments, limiting observation time and introducing inaccuracies. Auto tracking systems, utilizing motors and sophisticated algorithms, counteract Earth’s rotation, keeping the target object centered, allowing for longer, more comfortable viewing sessions and enabling the capture of detailed images.
Practically, the benefits of auto tracking are most pronounced in astrophotography. Long-exposure photography, essential for capturing faint deep-sky objects like galaxies and nebulae, is impossible without precise tracking. Even short exposures are significantly improved with tracking, resulting in sharper, clearer images. Beyond astrophotography, auto tracking greatly enhances the experience for visual observers. It allows for relaxed viewing of planets, the Moon, and even brighter deep-sky objects without the fatigue and frustration of constant manual adjustments. This is particularly valuable for groups or individuals with limited physical dexterity. The convenience factor alone drives significant demand, especially among amateur astronomers seeking a more enjoyable and productive hobby experience.
Economically, the increasing accessibility of high-quality, relatively affordable auto tracking telescope systems is a key driver. While historically, these systems were prohibitively expensive, advancements in motor technology, computer control, and manufacturing processes have lowered the price point. This has opened the market to a wider range of enthusiasts. Furthermore, the rise of online astronomy communities and readily available resources for astrophotography have fueled interest and demand. Individuals are inspired by the stunning images shared online and are motivated to invest in the equipment necessary to achieve similar results.
Finally, the resale value of auto tracking telescopes tends to be relatively strong, making them a more attractive investment. A well-maintained system can retain a significant portion of its original cost, mitigating the financial risk for potential buyers. Coupled with the growing popularity of astronomy as a hobby and the increasing availability of compatible accessories (cameras, filters, etc.), the economic factors surrounding auto tracking telescopes continue to support a robust and expanding market.
Understanding Different Tracking Mount Types
Auto tracking telescopes rely on motorized mounts to counteract Earth’s rotation, keeping celestial objects within the field of view. These mounts aren’t all created equal, and understanding the differences is crucial for selecting the right telescope. Equatorial mounts are the most common type for astrophotography, aligning with Earth’s axis of rotation. This alignment requires polar alignment, a process that can be complex but yields highly accurate tracking over long exposures. German Equatorial mounts (GEMs) are a popular subtype, offering stability and payload capacity.
Alt-Azimuth mounts, while simpler to set up, traditionally weren’t ideal for long-exposure astrophotography. They move in altitude (up and down) and azimuth (left and right), requiring more complex calculations to compensate for field rotation. However, advancements in software and motor control have led to Alt-Azimuth mounts with sophisticated tracking capabilities, making them viable options for shorter exposures and visual observing. These are often favored for their portability and ease of use.
Fork mounts represent another design, often found in Schmidt-Cassegrain telescopes. They cradle the telescope tube at two points, providing a stable platform. While generally not as versatile as GEMs for astrophotography, they can be effective for visual observing and planetary imaging. The choice between these mount types depends heavily on your intended use – visual observing, wide-field astrophotography, or high-resolution planetary imaging.
The level of automation also varies. Some mounts require manual alignment and input of coordinates, while others feature computerized “GoTo” systems that automatically locate and track objects. GoTo systems significantly simplify the observing experience, especially for beginners, but they come at a higher price point. Considering the complexity of alignment and the desired level of automation is paramount when choosing a tracking mount.
The Role of GoTo Technology & Databases
GoTo (Go-To) technology has revolutionized amateur astronomy, transforming telescopes from challenging instruments requiring significant skill to user-friendly tools accessible to a wider audience. At its core, GoTo utilizes a computerized hand controller and internal motors to automatically slew the telescope to a user-selected celestial object. This functionality relies on a comprehensive database of stars, planets, nebulae, and galaxies stored within the mount’s memory. The accuracy of this database is critical for successful GoTo operation.
The size and completeness of the database vary between manufacturers and models. Larger databases contain more objects, increasing the likelihood of finding what you’re looking for. Regularly updating the database via software downloads is essential to ensure accuracy and incorporate newly discovered objects. Furthermore, the GoTo system’s accuracy is dependent on a precise initial alignment procedure. This typically involves aligning the telescope with one or more known stars.
Beyond simply locating objects, advanced GoTo systems offer features like tour modes, which automatically guide you through a selection of interesting celestial targets. Some systems also incorporate predictive tracking, anticipating the object’s movement based on its orbital parameters. This is particularly useful for tracking comets and asteroids. The sophistication of the GoTo system directly impacts the ease of use and overall observing experience.
However, it’s important to remember that GoTo is a tool, not a replacement for understanding the night sky. While it can quickly locate objects, learning to star-hop and navigate manually enhances your astronomical knowledge and appreciation. Relying solely on GoTo can hinder your ability to identify constellations and understand the relationships between celestial objects.
Power Solutions for Extended Tracking
Maintaining consistent power is vital for uninterrupted auto tracking. Telescopes with tracking mounts require a stable power source to operate the motors and computerized systems. The power requirements vary depending on the mount’s size, features, and the accessories connected to it. Smaller, simpler mounts may run adequately on standard D-cell batteries, but larger, more sophisticated mounts typically require a dedicated power supply.
AC adapters are a common solution, plugging directly into a wall outlet. However, this limits your observing location to areas with access to electricity. For remote observing locations, a portable power solution is essential. 12V DC power supplies, often connected to a car battery, are a popular choice. These provide ample power for most mounts and can be easily transported. Battery capacity is a crucial consideration; larger batteries offer longer run times but are heavier and more expensive.
Jump starters, designed to start car engines, can also serve as a portable power source for telescopes. They typically provide a high current output, ensuring sufficient power for demanding mounts. However, it’s important to choose a jump starter with a regulated output to protect the telescope’s electronics from voltage fluctuations. Solar panels offer a sustainable and environmentally friendly power solution, but their effectiveness depends on sunlight availability.
Power banks, commonly used for charging smartphones and laptops, are becoming increasingly viable options for smaller telescopes. Look for power banks with a high capacity and a 12V DC output. Regardless of the power source, it’s always a good idea to have a backup power supply on hand to prevent interruptions during critical observing sessions. Monitoring battery levels or voltage is also recommended to avoid unexpected shutdowns.
Maintenance & Troubleshooting Common Tracking Issues
Auto tracking telescopes, while sophisticated, require regular maintenance to ensure optimal performance. Periodic cleaning of the mount’s gears and bearings is essential to remove dust and debris that can impede smooth operation. Lubricating these components with a specialized telescope grease prevents friction and extends their lifespan. Avoid using general-purpose lubricants, as they can attract dust and gum up the gears. Regularly check and tighten any loose screws or bolts on the mount.
One common issue is inaccurate tracking, often caused by improper polar alignment (for equatorial mounts). Re-performing the polar alignment procedure carefully can resolve this. For Alt-Azimuth mounts, ensure the mount is level and that the internal sensors are calibrated correctly. Another frequent problem is motor stalling, which can be caused by insufficient power or excessive load. Verify the power supply is adequate and that the telescope is not overloaded with heavy accessories.
Software glitches can also lead to tracking errors. Updating the mount’s firmware to the latest version often resolves these issues. If the GoTo system fails to locate objects, double-check the date, time, and location settings. Ensure the telescope’s optics are clean, as smudges or dirt can interfere with the GoTo system’s alignment process.
Finally, understanding the limitations of the mount is crucial. Extremely high magnification or challenging atmospheric conditions can push the tracking system to its limits. If you encounter persistent tracking issues, consult the telescope’s manual or contact the manufacturer’s customer support for assistance. Proactive maintenance and a systematic approach to troubleshooting can significantly enhance your observing experience.
Best Auto Tracking Telescopes: A Comprehensive Buying Guide
The pursuit of astronomical observation has historically been limited by the Earth’s rotation, demanding constant manual adjustments to keep celestial objects within the field of view. Modern advancements in telescope technology have largely overcome this challenge with the advent of auto-tracking telescopes. These instruments utilize motorized mounts and sophisticated algorithms to counteract Earth’s movement, providing stable, long-exposure views crucial for astrophotography and enhancing the viewing experience for casual observers. This guide provides a detailed analysis of the key factors prospective buyers should consider when selecting the best auto tracking telescopes, moving beyond simple specifications to address practical implications and real-world performance. The market offers a diverse range of options, from entry-level computerized models to professional-grade equatorial mounts, each with varying capabilities and price points. A considered approach, informed by understanding these core elements, is essential for making a purchase that aligns with individual needs and observational goals.
Aperture and Light Gathering Ability
Aperture, the diameter of the telescope’s primary lens or mirror, is arguably the most critical specification. It directly dictates the telescope’s light-gathering ability, influencing the brightness and detail of observed objects. Larger apertures collect more light, allowing for the observation of fainter deep-sky objects like galaxies and nebulae, and resolving finer details on planets and the Moon. A 6-inch (150mm) aperture is generally considered a good starting point for serious amateur astronomy, while 8-inch (200mm) and larger apertures offer significantly enhanced performance. However, increased aperture also translates to increased cost, weight, and the need for a more robust mount.
Data from observational studies consistently demonstrates a logarithmic relationship between aperture and resolution. Doubling the aperture doesn’t double the resolution; instead, it increases the resolving power by a factor of approximately 1.414 (the Dawes limit). For example, a 4-inch telescope can theoretically resolve details separated by 5.7 arcseconds, while an 8-inch telescope can resolve details down to 2.86 arcseconds. This difference is particularly noticeable when observing planetary features like the cloud bands of Jupiter or the rings of Saturn. Furthermore, the f-ratio (focal length divided by aperture) impacts image brightness and field of view; lower f-ratios are better for wide-field views, while higher f-ratios are preferred for planetary observation.
Mount Type: Alt-Azimuth vs. Equatorial
The mount is the foundation of any telescope, and its type significantly impacts tracking accuracy and ease of use. Two primary mount types dominate the market: Alt-Azimuth (Alt-Az) and Equatorial. Alt-Az mounts move horizontally (Azimuth) and vertically (Altitude), mirroring the natural motion of the human eye. They are generally simpler to set up and operate, making them suitable for visual observation and basic astrophotography of brighter objects like the Moon and planets. However, they require more complex tracking algorithms to compensate for field rotation during long exposures.
Equatorial mounts, on the other hand, are aligned with the Earth’s rotational axis. This alignment allows for tracking objects with a single axis movement, simplifying the tracking process and minimizing field rotation, making them essential for long-exposure astrophotography of deep-sky objects. While more complex to initially set up (requiring polar alignment), the superior tracking performance of equatorial mounts justifies the effort for serious astrophotographers. Modern computerized equatorial mounts often include auto-guiding capabilities, further enhancing tracking accuracy by making minute corrections based on feedback from a guide camera. The best auto tracking telescopes often utilize equatorial mounts for optimal performance.
Tracking Accuracy and GoTo Capabilities
Tracking accuracy refers to the mount’s ability to maintain an object centered in the field of view over time. This is crucial for both visual observation and astrophotography. Higher-end mounts boast significantly improved tracking accuracy, often measured in arcseconds per hour. A tracking error of less than 5 arcseconds per hour is generally considered acceptable for visual observation, while astrophotography typically requires tracking errors of 1 arcsecond or less, especially for long exposures. Periodic error correction (PEC) is a feature found in many equatorial mounts that can minimize tracking inaccuracies caused by imperfections in the gear train.
GoTo capabilities, a common feature in computerized telescopes, allow the mount to automatically locate and slew to thousands of celestial objects based on user input. The accuracy and speed of the GoTo system depend on the quality of the database and the precision of the motors and encoders. A well-calibrated GoTo system can significantly reduce the time spent searching for objects, allowing observers to maximize their observing time. Database updates are often available online, ensuring the telescope’s database remains current with newly discovered objects. The best auto tracking telescopes integrate GoTo functionality seamlessly with precise tracking.
Weight Capacity and Stability
The mount’s weight capacity is a critical consideration, as exceeding this limit can lead to instability, inaccurate tracking, and potential damage to the telescope. The weight capacity should not only account for the telescope’s optical tube assembly (OTA) but also for any accessories attached, such as cameras, finderscopes, and barlow lenses. It’s generally advisable to choose a mount with a weight capacity that exceeds the total weight of the setup by at least 20-30% to ensure optimal performance and stability.
Stability is also influenced by the mount’s construction materials and design. German Equatorial Mounts (GEMs) are known for their stability, particularly those constructed from robust materials like steel. Alt-Azimuth mounts, while generally lighter, can be less stable, especially when supporting heavier telescopes. Tripod stability is equally important; a sturdy tripod with a wide leg spread will minimize vibrations and provide a more stable platform. Dampening materials, such as rubber feet or vibration pads, can further reduce vibrations and improve image quality. The best auto tracking telescopes prioritize a robust and stable mounting system.
Computerization and Control Software
The level of computerization and the quality of the control software significantly impact the user experience. Basic computerized mounts typically offer GoTo functionality and tracking control via a hand controller. More advanced systems provide features like auto-guiding, PEC, and remote control via a computer or smartphone app. The control software should be intuitive, user-friendly, and offer a comprehensive database of celestial objects.
Software compatibility is also an important consideration. Many popular astronomy software packages, such as Stellarium and Cartes du Ciel, can be used to control computerized telescopes via ASCOM (Astronomy Common Object Model) drivers. ASCOM allows for seamless integration between the telescope and the software, enabling advanced features like automated imaging sequences and remote observing. Cloud-based control systems are also becoming increasingly popular, allowing users to control their telescopes remotely from anywhere with an internet connection. The best auto tracking telescopes offer sophisticated and user-friendly control software.
Portability and Setup Complexity
The portability and setup complexity of an auto-tracking telescope are important factors, particularly for observers who travel to dark-sky locations. Larger telescopes with heavier mounts can be challenging to transport and set up, requiring significant time and effort. Consider the weight and dimensions of the telescope and mount, as well as the ease of disassembly and reassembly.
Modular designs, where the telescope and mount can be separated into smaller, more manageable components, can significantly improve portability. Quick-release mechanisms for attaching the OTA to the mount can also streamline the setup process. While computerized mounts offer convenience, they often require more complex initial setup procedures, including polar alignment for equatorial mounts. However, many modern mounts include automated alignment routines that simplify the process. The best auto tracking telescopes strike a balance between functionality and portability, offering a reasonable level of convenience without sacrificing performance.
Frequently Asked Questions
What exactly *is* auto-tracking, and why is it important for telescopes?
Auto-tracking, in the context of telescopes, refers to the motorized system that compensates for Earth’s rotation. As our planet spins, celestial objects appear to move across the sky. Without tracking, these objects would quickly drift out of the telescope’s field of view, especially at higher magnifications. This makes sustained observation, astrophotography, and even comfortable visual observing incredibly difficult.
The importance of auto-tracking increases dramatically with magnification and the desired exposure time for astrophotography. A general rule of thumb is that for every 100x magnification, you’ll notice drift within seconds without tracking. For long-exposure astrophotography, even a slight drift will result in star trails, rendering the image unusable. Modern auto-tracking systems utilize sophisticated algorithms and motors to maintain precise alignment with the target, allowing for extended observation and stunning image capture.
What are the different types of auto-tracking mounts available?
The primary types of auto-tracking mounts are Equatorial (EQ) and Alt-Azimuth (Alt-Az). Equatorial mounts have one axis aligned with Earth’s rotational axis, requiring only movement on a single axis to track. They are generally preferred for astrophotography due to their inherent ability to counteract Earth’s rotation with a single, smooth motion, minimizing field rotation. However, they require precise polar alignment, which can be complex for beginners.
Alt-Azimuth mounts, on the other hand, move in altitude (up/down) and azimuth (left/right). They are simpler to set up and operate, making them ideal for visual observing and casual astrophotography. Modern Alt-Az mounts often incorporate GoTo systems and sophisticated tracking algorithms to compensate for the more complex tracking required compared to EQ mounts. While field rotation can be an issue with long exposures, advancements in software and mount design are mitigating this.
How much does a good auto-tracking telescope typically cost?
The cost of an auto-tracking telescope varies significantly based on aperture, mount type, and features. Entry-level auto-tracking telescopes, typically with smaller apertures (60-80mm) and Alt-Az mounts, can start around $300-$600. These are suitable for beginners and casual observing. Mid-range telescopes (80-150mm aperture, often with EQ mounts) with more robust tracking capabilities generally range from $800 to $2000.
For serious astrophotography and larger apertures (150mm and above), expect to invest $2000 and upwards, potentially reaching $5000+ for high-end systems. The mount itself often represents the largest portion of the cost, particularly for EQ mounts designed for heavy telescopes and precise tracking. Remember to factor in accessories like a tripod, eyepieces, and potentially a guiding system for long-exposure astrophotography.
What is “GoTo” functionality, and is it essential for an auto-tracking telescope?
“GoTo” functionality refers to a computerized system within the telescope mount that allows it to automatically locate and slew to specific celestial objects. It utilizes a database of astronomical objects and, after initial alignment, can point the telescope to planets, stars, galaxies, and nebulae with impressive accuracy. While not essential for auto-tracking, GoTo significantly enhances the user experience, especially for beginners.
Without GoTo, finding objects requires manual star-hopping using star charts or finderscopes, which can be time-consuming and challenging. GoTo systems streamline this process, allowing users to quickly explore the night sky and maximize observing time. The accuracy of GoTo systems has improved dramatically, with many modern mounts offering pinpoint accuracy after a simple alignment procedure.
What level of technical skill is required to set up and use an auto-tracking telescope?
The technical skill required varies depending on the mount type and telescope complexity. Alt-Azimuth mounts with GoTo are generally the easiest to set up and use, requiring minimal technical knowledge. Polar alignment for Equatorial mounts, however, can be challenging for beginners and requires understanding of celestial coordinates and alignment procedures.
Fortunately, many modern EQ mounts offer assisted polar alignment features, utilizing built-in cameras and software to guide the user through the process. Astrophotography with auto-tracking adds another layer of complexity, requiring knowledge of camera settings, guiding techniques, and image processing software. However, numerous online resources and communities are available to support users at all skill levels.
How important is the tripod when choosing an auto-tracking telescope?
The tripod is crucially important for an auto-tracking telescope. A stable and robust tripod is essential to minimize vibrations that can disrupt tracking accuracy, especially at higher magnifications and during long-exposure astrophotography. Lightweight or flimsy tripods will amplify vibrations from wind, footsteps, or even the focusing mechanism, resulting in blurry images and inaccurate tracking.
Tripod materials like stainless steel or aluminum are preferred for their rigidity and durability. The tripod’s load capacity should significantly exceed the weight of the telescope and mount to ensure stability. Features like adjustable legs, a central bracing system, and vibration damping pads further enhance stability. Investing in a high-quality tripod is often as important as the telescope itself.
What maintenance is required for an auto-tracking telescope mount?
Auto-tracking telescope mounts require regular maintenance to ensure optimal performance and longevity. This includes periodic cleaning of the gears and bearings with a specialized lubricant designed for precision instruments. Avoid using general-purpose lubricants, as they can attract dust and grime. Checking and tightening screws and bolts is also important, as vibrations can loosen them over time.
For EQ mounts, ensuring accurate polar alignment is an ongoing maintenance task. Regularly checking and adjusting the alignment will maintain tracking accuracy. Software updates for GoTo systems should also be installed to benefit from bug fixes and improved object databases. Finally, protecting the mount from moisture and extreme temperatures will prevent corrosion and damage to electronic components. Following the manufacturer’s recommendations for maintenance is always best practice.
The Bottom Line
In conclusion, the selection of an auto tracking telescope necessitates a careful consideration of observing goals, budget, and technical proficiency. Our analysis reveals a clear correlation between price and performance, particularly regarding mount stability, tracking accuracy, and aperture size. Entry-level models offer convenient GoTo functionality suitable for casual planetary and lunar observation, while more advanced options—featuring equatorial mounts, larger apertures, and sophisticated computerized databases—are essential for deep-sky astrophotography and detailed visual studies. The critical components differentiating effective telescopes lie in the quality of the drive system, the precision of the GoTo alignment process, and the overall build quality ensuring minimal flexure during long-exposure imaging.
Ultimately, identifying the best auto tracking telescopes depends on individual needs, but the Celestron NexStar Evolution 8 consistently emerges as a strong contender for intermediate to advanced users. Its combination of portability, aperture, and reliable tracking capabilities, coupled with a user-friendly interface and wireless control, provides an exceptional value proposition. For those prioritizing astrophotography, investing in a robust equatorial mount like those found in the Sky-Watcher HEQ5 Pro series, even if paired with a separate optical tube, will yield demonstrably superior results compared to alt-azimuth mounts, particularly when undertaking extended exposures of faint celestial objects.