What kind of mount is best for the Celestron C6 OTA?
The Celestron C6 OTA is highly versatile due to its 10 lb weight and CG-5 dovetail. For visual use, a manual alt-azimuth mount is sufficient and offers a simple grab-and-go setup. For astrophotography, a computerized German equatorial mount like Celestron's Advanced VX is recommended to handle the 1500mm focal length and provide accurate tracking.
Is the Celestron C6 good for deep-sky astrophotography?
The C6 is excellent for smaller deep-sky objects like galaxies (M51, M82) and planetary nebulae (M57, the Ring Nebula) due to its 1500mm focal length. However, its f/10 focal ratio is "slow," requiring longer exposure times. For wider nebulae like the Orion Nebula (M42), a focal reducer is recommended to shorten the focal ratio and widen the field of view.
How will Jupiter look through the Celestron C6 OTA?
With its 1500mm focal length and 0.77 arc second Dawes' limit resolution, the Celestron C6 will provide detailed views of Jupiter. Using a high-power eyepiece or a Barlow lens, you can expect to clearly resolve the primary cloud bands, the Great Red Spot, and the four Galilean moons transiting the planet's disk.
What does the 37% secondary mirror obstruction on the C6 mean for views?
The 37% obstruction by diameter (14% by area) is typical for a Schmidt-Cassegrain design. It slightly reduces peak contrast compared to an unobstructed refractor of the same aperture. However, the C6's large aperture and StarBright XLT coatings compensate for this, still delivering bright, sharp images, especially on planets and the Moon.
Can I use 2" eyepieces with the Celestron C6?
To use 2" eyepieces with the Celestron C6, you will need to purchase a separate 2" visual back that threads onto the rear cell of the telescope, as well as a 2" star diagonal. The stock configuration only supports 1.25" accessories.
Is the Celestron C6 a good telescope for a beginner?
While the C6 offers advanced-level optical performance, its compact size and ease of handling make it very accessible. As an optical tube assembly (OTA), it requires a separate mount. For a beginner looking for a high-quality system that they won't outgrow quickly, the C6 is an excellent choice when paired with a user-friendly computerized mount.
