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NGC3911

 

Basic Information


Location and Magnitude


Right Ascension: 11:49:22.1
Declination: +24:56:19
Constellation: LEO
Visual Magnitude: 13.3

Historic Information


Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7

Observational


Summary description: vF, S, p of 2
Sub-type: SBbc

Corwin's Notes

===== NGC 3911 is the brighter and following of two galaxies (the other is NGC 3920). It was found by WH whose position is very good. JH also saw it, but because his RA was off, thought it a nova and noted, "Follows III 341 [N3911] on same parallel." The galaxy he thought to be his father's was actually the nova, however. Since JH's RA is about 45 seconds too far east, this, and his note, have confused the identifications of the two objects ever since. Neither d'A nor Dreyer found a nebula at JH's position, of course. In spite of the correct NGC position for N3911, most modern catalogues place the two in numerical order. This necessitates changing the RA's of both. In placing NGC 3911 on the following galaxy, I am giving precedence to the historical order of discovery, attributing to WH the brighter galaxy he actually saw. Since JH was the first to see the fainter preceding object, the number NGC 3920 given by Dreyer to h 996 (JH's nova) necessarily applies to it. This leaves the numbers out of RA order, and also disagrees with the NGC notes about which is preceding and following, but better represents the history in this case.

Steve's Notes

===== NGC 3911 17.5" (4/15/93): fairly faint, fairly small, elongated 4:3 NW-SE, brighter core, faint stellar nucleus. NGC 3920 lies 10' W. The identifications of NGC 3911 and NGC 3920 are reversed in all modern catalogues.