Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  Solar system body or event
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NGC 4559, Oh, and the Comet, In Coma Berenices, 


            PJ Mahany
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NGC 4559, Oh, and the Comet, In Coma Berenices

Technical card

Imaging telescopes or lenses: Celestron 11" Rowe-Ackermann Schmidt Astrograph

Imaging cameras: QHYCCD QHY268c

Mounts: Software Bisque Paramount MX+

Guiding telescopes or lenses: Orion 50mm guidescope Miniguider 50mm

Guiding cameras: Orion Starshoot Autoguider Orion Starshoot Auto-Guider

Software: StarTools  ·  TheSkyX Pro  ·  SkyTools  ·  SharpCap 3.1 Sharp Cap  ·  PixInsight1.8  ·  PHD Guiding 2 PHD 2 Guiding

Date: Aug. 31, 2020

Time: 09:58

Frames: 10

FPS: 0.10000

Focal length: 620

Seeing: 5

Transparency: 8

Astrometry.net job: 3719778

RA center: 12h 35' 43"

DEC center: +27° 34' 58"

Pixel scale: 3.532 arcsec/pixel

Orientation: 7.416 degrees

Field radius: 1.039 degrees

Resolution: 1578x1411

Locations: Sierra Nevada Mountains, Near Yosemite, California, United States

Data source: Backyard


Taken 10 @10s Gain 30 pedestal 11 Temp -10C in strong Moonlight.
Needed dithering, but that would cause comet trailing...


Sky plot

Sky plot


NGC 4559, Oh, and the Comet, In Coma Berenices, 


            PJ Mahany