NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4407
Basic Information
Location and Magnitude
Right Ascension: 12:26:32.1
Declination: +12:36:37
Constellation: VIR
Visual Magnitude: 11.9
Historic Information
Discoverer: Herschel J.
Year of discovery: 1829
Discovery aperture: 18.3
Observational
Summary description: f of 2 neb
Sub-type: SBab
Corwin's Notes
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NGC 4407 = NGC 4413. This came about because JH has two observations of this
(and NGC 4388 in the same sweeps) which he did not equate. N4407 comes from
the second observation and is described only as "The following of 2." His
description for N4388 reads, "vF, E, the p of 2, dist about 30 sec in RA."
He marks the RA of N4407 with two colons (very uncertain), and the declination
with a plus/minus sign. So, it is clear that he measured only N4388, and
simply estimated the position of N4407 from the preceding galaxy. The only
galaxy that JH could have seen roughly 30 sec following N4388 is N4413, so the
identity of N4407 is almost certain. The identity with N4413 was suggested at
both Lick and Harvard. Both are quoted in Carlson's 1940 list.
As a result of JH's observations, N4388 has two separate GC numbers (2949 and
2956). Curiously, Dreyer caught the identity of the GC numbers for N4388, but
not for N4407 (= GC 2968) and N4413 (= GC 2974). Perhaps he was a bit
confused by WH's observations here which (correctly) call N4388 the south-
following of a pair (with N4387) rather than the preceding of a pair with
N4413 as noted -- also correctly -- by JH.
Steve's Notes
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NGC 4407
See observing notes for NGC 4413.