NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC3142
Basic Information
Location and Magnitude
Right Ascension: 10:10:6.4
Declination: -8:28:46
Constellation: SEX
Visual Magnitude: 13.8
Historic Information
Discoverer: Herschel J.
Year of discovery: 1836
Discovery aperture: 18.3
Observational
Summary description: F, R, (d'A, PD 43'.3, 1 obs)
Sub-type: S0
Corwin's Notes
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NGC 3142. Dreyer squeezes a note "(d'A, PD 43'.3, 1 obs)" into the
description of this in NGC. JH's minutes of polar distance are "47.9" for
1860.0, and he is correct. d'A's position is about 4.3 arcminutes too far
north which makes it identical to the declination of 17 Sextanis. The star is
very close to having the same RA as the galaxy, too. This makes it likely
that d'A mistakenly inserted the position of the star -- perhaps it was his
comparison star? -- rather than that of the galaxy, into his table.
Steve's Notes
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NGC 3142
17.5" (4/9/94): faint, very small, round, brighter core. Overpowered by 17 Sextantis (V = 5.9) 4.3' N. A second bright star 18 Sextantis (V = 5.6) lies 12.8' ENE.