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NGC 5091
NGC 5091, ESO 270-4, LEDA 46626, MCG-07-27-055, SGC 131823-4327.5, h 3488, GC 3497
Type: galaxies (interacting), Sb:
Mag: B=14.48, V=13.35
Size: 1.995′ x 0.389′
PA: 130°
Historical observations
John Herschel
Discovered by John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "faint, slightly elongated. The last of group; attached to the preceding one." His second observation reads: "very faint, round, 20 arcseconds. The last of four." The galaxies in this group are NGC 5082, 5086, 5090 & NGC 5091.
Published comments
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a galaxy. Their coded description reads EON,BM.
Bergwall et.al. (1978)
Bergwall et.al. (1978(Astron. Astrophys. Suppl. 33, 243-255) gives this galaxy's B-magnitude in the Johnson system as 14.9. They remark: "Detached 'spiral arm' (?) in the direction of IG 02 [NGC 5090]."
Photo index
Photo Index by Jim Lucyk: Cat.of South.Peculiar Gal.and Ass. Vol 2 (Arp&Madore, 1987) p2.6.
Modern observations
Brian Skiff
Lick: f * 0'.5 E, br * 5' N. gx N5091 1'.3 E.
POSS: 1'.2 sep.
ESO-LV: B=12.59, 13.94.
15cm - not found in dk sky.
- dbl gx in common envelope. main gx on NW is 1'.75x1' oval w/mod even
concen. comp is sup at SE end (whole mess elong SE-NW), seems circ maybe
15" across and w/o much concen, but grainy. BS, 3Mar1990, LCO.
25cm - found in dk sky @ 180x, but lo altitude.
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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