Bahtinov MaskBahtinov Mask Whether youre doing planetary visual observing, planetary imaging, or deep sky imaging, the Bahtinov Mask is a great accessory to get the best focus for your telescope quickly and easily. Credit goes to Russian amateur astronomer Pavel Bahtinov for making his idea available to the astronomy community. Bahtinov masks are adjustable to fit a wide range of optical tubes, unlike masks which are only able to fit one telescope. They have an

Telescope Focal Length 750mm (f/5)

grab-and-go system

Around midday

and IC catalogues

This setup is simple enough for a beginner to use

At -10°C the remaining voltage output may have gone down to only 10

Total Telescope Kit Weight: 42 lbs (19 kg)

matching them to its database

The Baader filters pass this test with no coating degradation

25x) (# 2956185)

Barrel Size (in): 1

You can keep doing this for different parts of the sky or for different object types -- it is a lot of fun