NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4556
Basic Information
Location and Magnitude
Right Ascension: 12:35:45.6
Declination: +26:54:33
Constellation: COM
Visual Magnitude: 13.1
Historic Information
Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7
Observational
Summary description: F, pL
Sub-type: E2
Corwin's Notes
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NGC 4556. See NGC 4563 and IC 3556.
Steve's Notes
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NGC 4556
18" (5/12/07): fairly faint, fairly small, slightly elongated E-W, 0.6'x0.5', bright core, very small brighter nucleus. A mag 14 star is just off the south side. First in a group with NGC 4558, NGC 4563, IC 3556, IC 3559, IC 3561, IC 3585 and IC 3590. The group is located ~55' N of NGC 4565.
IC 3556, located 4.4' northeast of NGC 4556, appeared very faint, small, slightly elongated N-S, 20"x15". This galaxy is misidentified in CGCG, MCG, UGC, and PGC as either NGC 4563 or NGC 4558.
IC 3561, located 4.2' east-southeast of NGC 4456, appeared very faint, very small, round, 20" diameter.
18" (4/5/03): fairly faint, small, slightly elongated, 0.7'x0.6'. A mag 13.5 star is just off the south edge 0.7' from center. Forms a pair with NGC 4558 5.2' NNE. Several other faint galaxies are nearby but the sky conditions were deteriorating and I wasn't able to search for these.