Astronomy Tools FOV Calculator

[chubster1302]

Evening/morning all

Just going through some beginner targets and entering into the above.  Not 100% sure what this is telling me? 

When I enter say M42 i can visualise it, but the black space around the other isn't helping my brain  🤔

[Knighty2112]

What object is the 2nd image showing?

[chubster1302]

33 minutes ago, Knighty2112 said:

What object is the 2nd image showing?

M35

[Knighty2112]

This is what I get when I set it to the scope and camera settings you show.

 

 

[fwm891]

I like to use https://www.12dstring.me.uk/fovcalc.php

you can use the ‘M’ or planet’s search but I like to go to Target / search and enter the object’s name ngc etc… it takes longer to display but photos are higher quality and the framing can be moved around and rotated (90 degree steps). Shorter fl’s and large sensors may not fill frame but the scale and frame size seems accurate.

eg: Attached a couple of images for my OO VX10 and AA 26C camera combo

FoV for Zenith Star 80 and 26C the white line shows the frame extent.

I hope that helps

 

Edited February 5, 2023 by fwm891
images added