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Type: galaxy, Sc
Mag: B=11.89, V=11.28
Size: 2.089′ x 1.548′
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pretty faint, round, very gradually a little brighter in the middle, has a yellow 5th mag star preceding it, approx. 1m 19s in RA, and 3' or 4' south."
Burnham notes that Eta Arae (B-V = 1.57) lies 1.5' to the west of the galaxy.
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).
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy.
Thornton Page ("Galaxies and the Universe", Chapter 13 - Binary Galaxies) includes this galaxy in the NGC 6300 Group. Members include NGC 6300, NGC 6221, NGC 6215, NGC 6215A & IC 4662A. Possible members include IC 4710, IC 4713 & IC 4714.
de Vaucouleurs, G. (1975) Nearby groups of galaxies. In: Kuiper, G. (ed) Stars and Stellar Systems. Volume 9: Galaxies and the Universe. Chapter 14, p557.
NGC 6300 Group:
Three large obscured spirals at low galactic latitudes in Ara – NGC 6300 and the pair NGC 6215/6221 – may be the brighter members of a loose group partly hidden by the absorption belt; the pair of late-type spirals IC 4710 and IC 4713, and perhaps IC 4662A and IC 4714 are other possible members. The large, low-velocity Magellanic irregular IC 4662 is clearly in the foreground. The length of the chain is 10°
ASV Journal Vol 24 No 3 June 1971: "just visible in 4-inch."
Alldays (22.50S, 20.12E, 770m).
12-inch f/10 SCT (218x)
Round soft hazy spot just glowing against the background star field. Just 9' NE from Eta Arae. These faint fuzzies!!
16-inch f/10 SCT (290x)
Round soft hazy. Tiny hazy spot is seen with ease although Eta is just 10' towards W. With averted a faint star can be seen embedded more to the eastern side of the galaxy.
The Messier objects
The Bennett objects
The Caldwell list
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