Scope Success, Meridian Flip Fail - a photo on Flickriver

Scope Success, Meridian Flip Fail

            The Horsehead and Flame Nebula, a stack of 11 shots processed in Photoshop. 1 of the frames was 10 minutes at ISO800, the rest were 20 minutes per frame, ISO400. Uncooled Nikon D810A on a Celestron CGEM2 mount, APT controlling the camera, ZWO guide camera with 60mm Sbvony scope for guiding with PHD2. The main scope is a Nikkor 600mm f/4 VR lens, shot wide open here. I had to keep adjusting the focus about every 40 minutes as the temp dropped, which is a pain! When I tried to do the meridian flip I messed it up and the scope lost its aligment, which for some reason I couldn't re-establish. I lost so much time I gave up for the night! Something I have to work on!
   

Taken on: November 25, 2019

Tags:

600mm

horsehead

nebula

Astrometrydotnet:id=nova3766179

Astrometrydotnet:status=solved « less

Sets appears in: • Hawker Novermber 2019

Groups appears in: • Night Images • After Dark - Night Photography more » • Astronomy • astrometry • Australian Night Images • Nikon D810A DSLR • PhotographingSpace.com • GODA " IS CLOSED " • Astro Imaging « less

Camera: Nikon D810A, f/4.0, 1203 sec, 600mm, ISO 400 (more info) (hide info)

Camera:	Nikon D810A
Lens:	600.0 mm f/4.0
Aperture:	f/4.0
Exposure Time:	1203
Focal Length:	600mm
ISO:	400
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Manual
Light Source:	Fine Weather
Gain Control:	Low gain up
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 9.0 (Windows)
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