NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC3830
Basic Information
Location and Magnitude
Right Ascension: 11:42:32.9
Declination: +26:29:21
Constellation: LEO
Visual Magnitude: 13.4
Historic Information
Discoverer: Herschel J.
Year of discovery: 1832
Discovery aperture: 18.3
Observational
Summary description: eF
Sub-type: E2
Corwin's Notes
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NGC 3830 is probably the same galaxy as NGC 3826. The only observer to see
N3830 (= h956) was John Herschel -- and his one observation is doubtful. His
description reads (in full): "Cloudy; hardly discernable." This is from
Sweep 416 of 19 April 1832.
JH's position for N3830 follows that for NGC 3826 (= H II 341 = h954) by 43
seconds of time; the declinations are identical. In addition, N3826 was seen
during three sweeps (115, 343, and 417), all different from the single sweep
during which N3830 was found. JH's three positions for N3826 are all in
agreement.
My guess is that because of the clouds, JH did not zero Sweep 416 on stars as
well as he usually did. This half-baked idea could be checked by comparing
JH's RA's for other objects in the same sweep with modern RA's: are they also
off in RA by about 40 arcsec of time? See NGC 898 where this sort of error
has undoubtedly been made. Another, probably more correct guess, is that JH
simply made an error in the RA.
Steve's Notes
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NGC 3830
17.5" (4/15/93): very faint, very small, round. Forms an equilateral triangle with two mag 13 stars 1.5' W and 1.5' SW. NGC 2826 lies 10' SW. This is an unresolved double system.
The identification of NGC 3830 is uncertain and the number may be a duplicate observation of NGC 3826.