Buying Guide for the Best Computerized Telescopes
Choosing the right computerized telescope can be a thrilling yet daunting task, especially if you're new to stargazing. A computerized telescope, also known as a GoTo telescope, is equipped with a computer system that can automatically locate and track celestial objects for you. This makes it easier for beginners and experienced astronomers alike to explore the night sky. To make an informed decision, it's important to understand the key specifications and how they align with your needs and preferences.ApertureThe aperture of a telescope is the diameter of its main optical component, which can be a lens or a mirror. This spec is crucial because it determines how much light the telescope can gather, directly affecting the clarity and brightness of the images you see. Apertures are typically measured in millimeters or inches. Smaller apertures (up to 70mm) are suitable for casual stargazing and viewing the moon and planets. Medium apertures (70mm to 150mm) offer better views of faint objects like star clusters and nebulae. Larger apertures (over 150mm) are ideal for deep-sky observations and astrophotography. Choose an aperture based on what you want to observe and how portable you need the telescope to be.
Focal LengthThe focal length of a telescope is the distance from the main optical component to the point where it forms an image. This spec affects the magnification and field of view. A longer focal length provides higher magnification, which is great for viewing planets and the moon in detail. However, it also narrows the field of view, making it harder to locate objects. Shorter focal lengths offer a wider field of view, which is better for observing larger areas of the sky and deep-sky objects. Consider what you want to observe and whether you prefer high magnification or a wider field of view when choosing the focal length.
Mount TypeThe mount is the part of the telescope that supports it and allows it to move. For computerized telescopes, the mount is especially important because it houses the motors and computer system that automate the tracking and locating of celestial objects. There are two main types of mounts: altazimuth and equatorial. Altazimuth mounts move in up-down and left-right motions, making them simpler to use and set up, ideal for beginners. Equatorial mounts are aligned with the Earth's axis, allowing for more precise tracking of objects as they move across the sky, which is beneficial for astrophotography. Choose a mount type based on your experience level and whether you plan to do astrophotography.
Database SizeThe database size of a computerized telescope refers to the number of celestial objects it can automatically locate and track. This spec is important because a larger database offers more objects to explore, enhancing your stargazing experience. Databases can range from a few thousand to over 40,000 objects. If you're a beginner, a smaller database might be sufficient and less overwhelming. For more advanced users or those who want to explore a wide variety of objects, a larger database is preferable. Consider your level of interest and how much you want to explore when choosing the database size.
PortabilityPortability refers to how easy it is to transport and set up the telescope. This spec is important if you plan to take your telescope to different locations or if you have limited storage space. Smaller telescopes with compact designs are easier to carry and set up, making them ideal for casual stargazing and travel. Larger telescopes, while offering better performance, can be bulky and heavy, requiring more effort to transport and set up. Consider how and where you plan to use your telescope when evaluating its portability.
Power SourceComputerized telescopes require a power source to operate the motors and computer system. This spec is important because it affects the convenience and duration of your stargazing sessions. Some telescopes use batteries, which are portable but may need frequent replacement or recharging. Others use AC adapters, which provide a constant power supply but require access to an electrical outlet. Some models offer both options. Consider where you plan to use your telescope and how long you want your sessions to last when choosing a power source.
