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Contains:  NGC 4085, NGC 4088, NGC4085, NGC4088
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NGC 4088 and NGC 4085 or ARP 18, 


            Riedl Rudolf
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NGC 4088 and NGC 4085 or ARP 18

Technical card

Dates:March 19, 2020

Frames: 18x605" ISO1600

Integration: 3.0 hours

Darks: ~25

Flats: ~25

Bias: ~25

Avg. Moon age: 25.11 days

Avg. Moon phase: 20.56%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 21.50

Temperature: 2.00 job: 3350399

RA center: 12h 5' 31"

DEC center: +50° 27' 13"

Pixel scale: 0.967 arcsec/pixel

Orientation: -112.630 degrees

Field radius: 0.432 degrees

Resolution: 2567x1931

Locations: Home, St. Peter/O., Steiermark, Austria

Data source: Backyard


This are 2 Galaxies in UMa. The sizes of them are 5,6 x 2,1 and 2,8 x 0,5 arcmin. The distance of both galaxies is about 37 mio Lj. The bigger one NGC 4088 has a diameter of 60.000 Lj. Both Galaxies are listed as well as ARP 18.



Riedl Rudolf
License: None (All rights reserved)

Sky plot

Sky plot


NGC 4088 and NGC 4085 or ARP 18, 


            Riedl Rudolf