Reply To: Software for photometry (image calibration)

[Kevin West]

Thanks Ian,
I don’t know what stretching is.
I have attached two images. The left is one of the original raw images 30s exp. Right is the calibrated output file of the stacked (only two lights) after application of darks, flats and flat darks in ASTAP.
The calibrated file looks rather washed out compared to the nice dark sky original which was a surprise.
Kevin

Attachments:

1. 

   NGC7790-comp-raw-and-calibrated.jpg