Field Of View Relative To Star Charts?
Posted 12 January 2004 - 02:26 AM
Does anyone know how to go about mapping a field of view for a binocular to a star chart?
If I have a bino with say a 6* FOV, how can this be trabnslated to a 6* circle on a sky chart?
Ideally, I would like to make up a template on a clear laminate sheet with a series of concentric circles for the various FOV possibilities for my equipment and binos that will show 5*, 6*, 6.5* and 7* FOV circles relative to my Cambridge Star Atlas scale. This would allow me to simply lay this over an area of the sky chart and see what "view" I would get through my different binoculars...
Posted 12 January 2004 - 05:49 AM
Posted 12 January 2004 - 06:54 PM
Found it and it is so simple when you actually see it
Posted 13 January 2004 - 01:15 AM
You should make 8.2 degrees as well, just for comparison!
Ed Cannon - firstname.lastname@example.org - Austin, Texas, USA