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Type: galaxy, E...
Mag: B=11, V=?
Size: 2.951′ x 2.884′
NGC 7507 might also be IC 1475 (which see). But so might NGC 7513.
Synonyms: H II-002
Discovered in 1783 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB S iF mbM."
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "B, R, psvmbM, 1'."
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads E,R,BM,HISB.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12M; 1' diameter; bright, small and round with very much brighter center; 14M stellar core and soft edges."
Steve Coe, observing with a 17.5" f/4.5 at 100X, notes: "Pretty bright, pretty small, round and has a brighter core at 100X. This galaxy looks somewhat like a globular cluster
15cm - fairly br w/vbr cen @ 80x. 140x: 1'.75 diam w/vf halo and strong sharp
concen to vbr *ar nuc. BS, 15Nov1993, LCO.
16-inch f/10 SCT (127x, 290x, 463x)
Soft round and haze galaxy, which is well outstanding against the star field. The small round bright nucleus is in strong contrast to the rest of the galaxy which show a hazy halo around the core more or less 1' in size (16" - 127x). Towards the NW a 12magnitude star can be seen (16" – 290x). The southern side is busy in star light.
The Messier objects
The Bennett objects
The Caldwell list
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