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Old 28-09-2011, 08:19 AM
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Originally Posted by orestis View Post
Hi guys,

A very interesting thread and great tips.

I have a question though not deep sky related I hope this is okay.

In a lot of observing reports I see mentions of Apparant size of an object and was just wondering how to do this myself is it plainly estimations on your knowledge of your Eps TFOV or is it more complicated than that.

Thanks in advance
reagrds Orestis
same here! I think they probably use the eyepiece TFOV as a reference like you say. Still, it would be just dead reckoning. The only other way I can think of is using an astrometric / reticle eyepiece.
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