NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC4021

Basic Information

Location and Magnitude

Right Ascension: 11:59:2.5
Declination: +25:5:1
Constellation: COM
Visual Magnitude: 14.8

Historic Information

Discoverer: Dreyer
Year of discovery: 1878
Discovery aperture: 72.0

Observational

Summary description: F, S, vlE
Sub-type: E3

Steve's Notes

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NGC 4021

24" (3/22/14): faint, fairly small, round, 24" diameter, slightly brighter core.  Located 5.2' NE of NGC 4015 in the NGC 4005 cluster.

17.5" (3/19/88): very faint, very small, slightly elongated ~E-W, 0.4'x0.3'.  Forms the northern vertex of an equilateral triangle with NGC 4015 5' SW and NGC 4023 6' SSE.  Member of the NGC 4007 group.