Decided to post a work in progress image of the M81-M82 area.
Telescope is Takahashi FS-60CB + Takhashi Sky90 reducer/flattener
Mount is EQ6-Pro
Camera QHY-163M cooled to -20C, filter IDAS LPS-D2
22 frames 360 sec stacked in DSS, darks subtracted but no lights or bias (yet)
I live in suburban/smallish town - sky was mag 20.5 (city turns off street lights after 1 am)
Image is stretched and very little sharpening and cropped. That's it.
Ok, the goal of my project here is to capture the IFN but nothing is showing, even if i stretch very hard.
So i'd like your advice on how proceed.
The histogram show clear space on the left side of the peak, so i'm guessing that longer exposures wont help.
So is my sky just not dark enough? Or do i just press on and get much more frames?
Edited by LarsMalmgren, 26 March 2020 - 08:04 AM.