To find out how much sky you see through an eyepiece, use the formula:
Field of View is the extent of the observable sky that is seen at any given moment through your telescope and camera combination. Prevents "cutting off" the edges of large nebulae.
Both beginners planning their first view and advanced users framing complex imaging targets. 2. Stellarium (Desktop & Mobile) astro fov calculator top
To find the angular field of view for either the horizontal or vertical dimension of your sensor, use the following formula:
An astro FOV calculator is a digital tool that computes the precise area of the sky your camera sensor records when paired with a specific telescope or lens. By entering your equipment specifications, the software generates a visual framing preview overlaid onto a star map. Key Metrics Calculated To find out how much sky you see
Telescopius is more than just a calculator; it is a full-scale planning suite.
Or, drift method: TFOV (arcmin) = Drift seconds × 0.25 (at celestial equator) Key Metrics Calculated Telescopius is more than just
It allows you to add multiple equipment combinations simultaneously. This makes it incredibly easy to compare how a dedicated astronomy camera stacks up against your old DSLR on the same telescope. 2. Telescopius (Telescope Simulator)
For intermediate to advanced astrophotographers using a laptop to control their gear, N.I.N.A. includes a world-class Framing Assistant.
Choose if you are planning a complex mosaic or want to find out what targets are perfectly sized for your specific gear tonight.
A rising star in the community, Telescopius offers a highly detailed planner that combines FOV calculation with imaging opportunities based on your location and time of year. It is excellent for planning a night's imaging sequence.