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Type: galaxy, S0
Mag: B=12.08, V=11.23
Size: 2.344′ x 1.584′
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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, pgbM, 20 arcseconds, within a triangle of three stars 13m."
"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(Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the NGC 7144 Triplet. Members include NGC 7144, NGC 7145 & NGC 7155.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy.
15cm - mod br sm gx among trio of *s @ 80x. 140x: trio * NW is wide pair. gx
30" diam w/mod sharp concen to br *ar nuc. m12 * SE: gx halo reaches
2/3 way to it. BS, 13Nov1993, LCO.
16-inch f/10 SCT (EP: 2-inch 40mm SW 102x 26' fov, 2-inch 32mm SW 127x 32' fov, 2-inch 14mm UW 290x 17' fov, 2-inch 8.8mm UW 462x 11' fov)
NGC 7145 is rather small and misty, between two stars. Between NGC 7144 and NGC 7145 is the double star BrO 15 (a rich yellow, bordering onto orange primary with a dark yellow to amber companion).
The Messier objects
The Bennett objects
The Caldwell list
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