Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
NGC6910 - First Light QHY600, Charles Duarte FRAS
NGC6910 - First Light QHY600
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NGC6910 - First Light QHY600

NGC6910 - First Light QHY600, Charles Duarte FRAS
NGC6910 - First Light QHY600
Powered byPixInsight

NGC6910 - First Light QHY600

Equipment

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Acquisition details

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Description

My first-light with the QHY600 CMOS based camera, one might think of sensor gain as one of the most prominent and critical controls for the camera, but gain often has a far less familiar companion called offset that, to many and especially me appears to be related to gain in some fashion , but how it works and its exact relationship to gain was a mysterious and not very obvious. Honestly, having less experiences to a CCD, there was a lot of testing not only to this relationship, but also the telescope to the camera. To help me out I used the excellent program  Sharpcap, and in particular its  'Sensor Analysis' and 'Histogram' . its provide an initial gain and exposure time, once you have this information, you test and test.

The Process was done with PI, using HOO , the exposue was at 300 sec 60 Ha, and 300 x 48 OIII
Gain at 59 
Offset at 29

Comments

Sky plot

Sky plot

Histogram

NGC6910 - First Light QHY600, Charles Duarte FRAS