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NGC 6851
NGC 6851, ESO 233-21, LEDA 64044, SGC 195955-4825.5, h 3807, GC 4531
RA: 20h 03m 33.6s
Dec: −48° 17′ 2″
Con: Telescopium
Ch: MSA:1472, U2:411, SA:23
Ref: SIMBAD, Corwin (2004)
Type: galaxy, E...
Mag: B=12.61, V=11.67
Size: 1.995′ x 1.513′
PA: 160°
Historical observations
John Herschel (1847) Cape Observations
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pF, S, R or vlE, psbM, 15 arcseconds."
Published comments
de Vaucouleurs, G. (1956)
De Vaucouleurs (1956) "Survey of bright galaxies south of -35° declination", Mem. Mount Stromlo, No. 13. (photographic study, plates taken with the 30-inch Reynolds reflector, 20-inch diaphragm).
Sandage (1975)
Sandage (1975(Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the Telescopium Group. Members include NGC 6851, NGC 6861, NGC 6861D, NGC 6868, NGC 6870, NGC 6875, NGC 6878, NGC 6890, NGC 6893, NGC 6902, NGC 6909 & ESO 285- G 7.
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy.
Shobbrook (1966)
Shobbrook (1966, Mon. Not. R. astr. Soc., Vol 131, p351-363) notes that this member of the Telescopium Cluster has V = 12.28, B-V = 0.94 and U-B = 0.48. It measures 0.6 by 0.4.
Contemporary observations
Magda Streicher
2006 April 07
Alldays
12-inch f/10 SCT (76x, 218x, 346x)
Conditions: Good
Soft round haze just visible, with a small angular size and no core. Two brighter stars 9 and 11 magnitude situated to the north and south east of the galaxy can be seen at 218x. A lovely speckled field of view. I use high power to check faint stars for super nova.
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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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