NGC/IC Project Restoration Effort
(This is a very very beta version)
Location and Magnitude
Right Ascension: 10:40:28.2
Visual Magnitude: 12.3
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Summary description: eF, eS
NGC 3342 = NGC 3332 (which see). WH did not do well with his positions for
this galaxy. His first observation of it (on 18 Jan 1784 as III 5), fully
related by Dreyer in the 1912 Papers, reads "The faintest and smallest nebula
imaginable. I viewed it a long while and with a higher power than the
sweeper. Having no person at the clock, I went in to write down the time and
found it impossible to recover the nebula. It appeared like a vS nebulous
star, and is probably of the cometic sort; there was another vS star south-
following (I think, or rather, am pretty sure), and it preceded a pB * [the
nebula is south-preceding of a star by a diagram, about 6 arcmin][JLED]. It
should have been secured before I went into the light. Its place must be
about 2 1/2 deg following rho Leonis and about 10 arcmin more north than that
WH's vivid description of the field is clear enough to unmistakeably identify
N3342 with N3332, even though his position is over 2 minutes of time, and 15
arcmin off. Dreyer notes that neither Spitaler nor Bigourdan could find the
object -- understandably, given the data they had.
He has two other observations, somewhat better, of it as H I 272 (= N3332),
but even those led to questions about its position.
See observing notes for NGC 3332.