Astrophoto Calculators

 





 

 

Based on 500-rule. Exposure time in seconds, tolerates short trails of a few pixels. Declination is 0° if ignored.

 





 

 

Exposure time in seconds for capturing a star in a single pixel (trail tolerance = 1). Trail tolerance is 1 pixel and declination is 0°, if either ignored.

 




 

 

Horizontal FOV in degrees.

 





 

 




 

 






 

 




A Strehl Ratio of 1 means that all the light is focused to a point.

Shooting Interval hours minutes seconds
Event Duration hours minutes seconds
Frame Rate Image Size in MB


 

 


APS-C Sensor

 

Full Frame Sensor

 

FOV = horizontal field of view in degrees, Max Exp = maximum exposure time in seconds to avoid star trailing (500 rule), Lens FL = focal length of lens im millimeters.

 


Sensor Data

Cameras can be added upon receipt of data as seen in the table.