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Type: galaxy, S
Mag: B=12, V=?
Size: 2.884′ x 1.778′
PA: 145°
Synonyms: H I-154
Discovered in 1786 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cB, pL, E np-sf, vgmbM, 3' long, 2' broad."
Observations with the 72-inch f/8.8 speculum telescope at Birr Castle noted "Oct 16, 1855. Oval, no nucleus, light pretty equable, major axis np, sf; clearly resolvable. I can at moments see some of its stars. A bright star at southern edge."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads EL,HISBCT,DIFHALO.
Observing site: Little Tycho Observatory
Telescope: C-8
[2h 30m 48s, 37° 8m 0s] A very low contrast glow. No detail seen.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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