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Getting plate-solving status, please wait...


            Tom Harrison

Technical card

Imaging telescope or lens:RCOS 12.5" Truss

Imaging cameras:SBIG STL6303eSBIG ST-RGH

Mount:Paramount ME

Guiding telescope or lens:RCOS 12.5" Truss

Guiding camera:SBIG ST-RGH

Software:CCDStackPixInsightRegimMaxim DLPhotshop Photoshop CS3

Filter:Astrodon Tru-Balance Generation 2

Accessories:PIROff-Axis Guider Homeyer

Resolution: 2325x1884

Dates:June 9, 2016

Frames: 114x600"

Integration: 19.0 hours

Avg. Moon age: 4.69 days

Avg. Moon phase: 22.87% job: 1113756

Locations: Tom Harrison, Fort Davis, Texas, United States


GC4298 and NGC4302 are a pair of spiral galaxies located toward the Constellation Coma Berenices at around 55-60 Million Light-Years distant. NGC4298 is the face-on tightly wound and knotty spiral galaxy and is about 50,000-60,000 Light-Years in size. NGC4302 is the edge-on galaxy presenting a heavy dust lane and is about 97,000 Light years in size. The two galaxies are around 600,000 Light-Years distant from each other, but there seems to be little evidence of tidal interaction thus far. The small blue sprial galaxy to the left of NGC4302 is PGC169114, about 1.2 Billion Light-Years distant. The larger galaxy in the left side of the image is PGC40066 is about 47 Million Light-Years distant, and its smaller companion is PGC165108 at about 192 Million Light-Years. Objects: NGC4298 and NGC43302 Distance: 55-60 Million Light-Years Date: June 2016 Place: Fort Davis, TX Exposure Details: LRGB:970:150:180:240 unbinned Processing: MaxIm DL, CCDStack, PixInsight, Photoshop CS3 Optics: 12.5" RCOSTruss Focal Length: 2808mm @ f9 Mount: Paramount ME Robotic Camera: SBIG STL6303E Focus: RCOS Guiding: SBIG RGH Guide Camera Off-Axis Filters: Tru-Balance LRGB GenII 2"



Tom Harrison
License: Attribution Creative Commons




            Tom Harrison