n MNASSA : Monthly Notes of the Astronomical Society of South Africa - DSLR photometry. How many darks?
|Article Title||DSLR photometry. How many darks?|
|© Publisher:||Astronomical Society of Southern Africa (ASSA)|
|Journal||MNASSA : Monthly Notes of the Astronomical Society of South Africa|
|Publication Date||Apr 2015|
|Pages||65 - 73|
|Keyword(s)||Techniques: DSLR photometry|
The effect of the number of dark frames subtracted from a light frame on the signal to-noise ratio (SNR) of stars is investigated. The conclusion is that applying a single dark frame gives a substantial improvement in the SNR of stars, while applying additional dark frames gives only a very small improvement.
Article metrics loading...