ID 33923926 © Lls4mtm | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
alignment ancient astronomer astronomy astrophotography autoguider automated bias calibration camera cassiopeia catalog ccd constellation current cygnus dark distant exposure fall filters flat formation frames fsq gazing goto guider hubble light meridian mount narrowband nebula noise optimal palette polar polluted pollution post process processing read scientist sharpless sky soul space stacking stars summer takahashi telescope tracking years zenith