FORUM DU LOGICIEL PRISM • Does Prism take into account exposure time when computing ADUs?

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Does Prism take into account exposure time when computing ADUs?

Posté : 02 juin 2024, 22:46

par dan_adrian

Hello, I have taken an 8 second exposure of a star (TYC 3853-1374-1).
When I do the aperture analysis I get the results from the picture bellow.

Max = 10049 ADU

Is this Max value in ADU/sec? If my exposure time is 8 sec then Max = 8 * 10049 (80392) and the pixel is saturated

Re: Does Prism take into account exposure time when computing ADUs?

Posté : 03 juin 2024, 00:51

par Cyril Cavadore

No this is the local max for the given image (as seen), there no division by the exposure time.

Re: Does Prism take into account exposure time when computing ADUs?

Posté : 03 juin 2024, 20:51

par dan_adrian

Ok, I understand now, thank you.