I Am Cursed Ack Fi My New Telescope hates me

  • Topic: Stargazing 
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That would be "the" Telrad. There's only one to my knowledge. Just make sure that you get a type that has a bullseye of concentric rings, rather than a dot in the middle.

- Warren
 
chroot said:
That would be "the" Telrad. There's only one to my knowledge. Just make sure that you get a type that has a bullseye of concentric rings, rather than a dot in the middle.

- Warren

I am pretty sure that is what it is (not a dot).
Here's the pic.
 
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Yep, that's a Telrad pattern. The rings are 1, 2, and 4 degrees wide, and can be used as a reference against your star charts. You may quickly begin thinking of the sky in terms of Telrad-ring-widths, and it'll be downright easy to gauge angular distances after a while.

- Warren