Re: M57 The Ring Nebula at MSRO #MSRO #ExploreScientific #G11 #astrophotography

Jerry Hubbell - Explore Scientific VP Engineering

Hi Joe,

The QHY 163C TEC CMOS camera used was set to a QHY Gain value of 20 and an offset of 20. These settings correspond to a Gain of 0.29 e-/ADU, readout noise of 2.2 e- and a dark current of 0.006 e-/pixel/sec. Here is a screenshot showing the histogram of one of the M57 images in MaxIm Dl stretched to show the most detail in the nebula (highlighted in the RED rectangle).

Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at
1010 S. 48th Street
Springdale, AR 72762

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home

Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!

Join to automatically receive all group messages.