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Type: galaxy, S...
Mag: B=13.54, V=12.48
Size: 2.137′ x 0.478′
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "eF, 20 arcseconds, the 3rd of three." The other two objects are the small, extremely faint galaxies NGC 6769 & NGC 6770.
Bailey, examining a Bruce plate (Harvard Annals, Vol 72, No 2), describes it as "very faint nebulosity, pretty bright nucleus, 0.6' x 0.2' at 125 deg; spiral?"
(Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the NGC 6769 Group. Members include NGC 6739, NGC 6769, NGC 6770, NGC 6771, NGC 6782, IC 4827, IC 4831, IC 4842 & IC 4845. Possible additional members include NGC 6753, NGC 6758, NGC 6780, NGC 6776, IC 4837, IC 4839 & IC 4889.
Spectroscopic observations of galaxies from the ESO/Uppsala list. First catalogue. Astron. Astrophys. Suppl., 27, 73-88.
West (1977, Astron. Astrophys. Suppl. 27, 73-88) writes: "The unfiltered plate (figure 7) is probably one of the deepest plates ever made of this otherwise well-studied system [NGC 6769, NGC 6770 & NGC 6771] NGC 6771 shows tight arms winding around the nucleus, indicating a morphological type which is closer to Sa than Sandage's classification (S0). Material in the NW part of its envelope stretches up towards NGC 6770, but there is no clear evidence of a bridge. NGC 6770 has a distant, curved arm, which reaches 85 arcseconds south from the nucleus towards NGC 6771; there is therefore obviously gravitational interaction between all three galaxies. They all have relatively red nuclei, and they are seen in front of a distant galaxy cluster, the centre of which is 6' NNE of the NGC 6769."
Table IV: Position corrected.
Burbidge, E.M. & Burbidge, G.R. (1961) Recent investigations of groups and clusters of galaxies. Astron.J., 66(10), 541.
(Sulentic and Tifft 1973) notes that this is a galaxy.
Shobbrook (1966, Mon. Not. R. astr. Soc., Vol 131, p351-363) notes that this field galaxy to the Centaurus Cluster has V = 12.85, B-V = 1.05 and U-B = 0.3. It measures 1.45 by 0.26.
by Jim Lucyk: Sky Catal. 2000 (Vol 2, 1985) pxxxiii, Cat.of South.Peculiar Gal.and Ass. Vol 2 (Arp&Madore, 1987) p3.1.
The Messier objects
The Bennett objects
The Caldwell list
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