How is magnitude error calculated?

[aprakapovich]

Hello!

Can somebody tell how Mag_Err is calculated, it is related to SNR, but what exactly formula. Theoretically it should be: 2.5 log ( 1 + N/S)

Thanks in advance!

[karenacollins]

Check this entry:

http://astroimagej.1065399.n5.nabble.com/How-is-photometric-error-calculated-in-AstroImageJ-td188.html

If something is missing, let me know.

Karen

On 4/2/2015 3:31 PM, aprakapovich [via AstroImageJ] wrote:

Hello!

Can somebody tell how Mag_Err is calculated, it is related to SNR, but what exactly formula. Theoretically it should be: 2.5 log ( 1 + N/S)

Thanks in advance!

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