UGC 10043  +  Hickson 77

Full resolution (1600x1200 px  430kB)

150% resolution (800kB)

Object identification (430kB)

Inverted image with 200% resolution

OSC widefield image

Object data of UGC10043

Object type: galaxy (Sbc)
Size: 2.7' x 0.4'
Magnitude: 14.8 mag
Constellation: Ser
Distance: 100 Mio Ly
Notes: UGC 10043 is a faint edge-on galaxy with a very thin disk component for a galaxy of this Hubble type. Its outer disk is warped like a slight integral sign, as can be seen clearly in the inverted image. Two possible companions of UGC 10043 are identified in the object identification image: PGC 56100 and a dwarf galaxy named "[MD 2004] Dwarf", which was discovered in 2004 by Matthews + de Grijs. This dwarf galaxy is very faint (brightness = 22mag; surface brightness = 26.1 mag per arcsec2).

Object data of Hickson77

Object type: compact galaxy group (4 members)
Size: 0.4' - 0.9'
Magnitude: 15.7 - 17.4 mag
Constellation: Ser
Distance: A+B: 460 Mio Ly  /  C+D: 100 Mio Ly
Notes: HCG 77 is a compact group of galaxies which is composed by two close pairs of galaxies having quite different characteristics. HCG77A and HCG77B build a pair in a distance of 460 Mio lightyears, whereas HCG77C and HCG77D are found in a distance of 100 Mio lightyears.

Exposure data

Date: 2012-05-17+19+25 + 2012-06-15+16+17+18+23+25 + 2012-07-18+23
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: ST2000XM with CFW8 and Baader Filters
Binning: L 1x1 / RGB 1x1
Mount: WAM 650move
Exposure time: L 60x12m / R 16x12m / G 16x12m / B 16x12m
Exposure time total: 21h 36m