Re: Astrophotography Done with the iEXOS-100, EXOS 2, and G11 Post your Pictures and Details! Lets Show What These Mounts Can Do. #iEXOS-100 #G11 #EXOS2 #astrophotography

Jerry Hubbell - Explore Scientific VP Engineering

On Thu, Aug 6, 2020 at 02:41 PM, Bill Black wrote:
Anyway, I was wondering if anyone knows what this nebula is... does it have a name or number?
Yes, it is called the "Reflection Nebula"..... It is an artifact in your image caused by the bright star Vega reflecting either off the clear camera chip cover or another optic you may have in the image train. I have seen this much more pronounced when filters are in the image train. This reflection occurs typically when the bright light from the star is reflected off the chip surface back up to the protective glass over the chip, and then back to the chip again. 

Rest assured, it is not a real nebula.
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!

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