NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4027
![](Images/negative_NGC4027-ngcicproject.jpg)
Basic Information
Location and Magnitude
Right Ascension: 11:59:30.5
Declination: -19:15:57
Constellation: CRV
Visual Magnitude: 11.1
Historic Information
Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7
Observational
Summary description: globular, pF, pL, R, rr, st 16
Sub-type: SBd
Steve's Notes
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NGC 4027
24" (4/10/08 - Magellan Observatory, Australia): at 260x this is a strange looking one-armed spiral. Overall it appeared quite bright and large with a very irregular shape, 3'x2', and sharply concentrated with a fairly small, round core. The core gradually increases to the center. Emerging from the core on the NW end is a fairly well-defined arm that initially extends north in the direction of a mag 11.8 star located 3.7' NNW of the center of the galaxy. This arm then sharply curves back counter-clockwise ~135¡, bending around to the SW and ends just on the outside of a mag 13.5-14 star situated close NE of the core. On the SE end of the core, a second arm begins to emerge but it suddenly terminates, creating a very asymmetric appearance with the other long, wrapping arm.
A faint companion, NGC 4027A, lies 4' S. At 260x, the companion appeared faint, fairly small, slightly elongated ~N-S, 25"x20", low even surface brightness. A very faint star is attached at the south end. The Ring-tail galaxy, NGC 4038/4039, lies 40' NE.
13.1" (2/16/85): fairly bright, round, moderately large, broad concentration, possible stellar nucleus. A mag 14 star is off the ENE edge 1.0' from center. NGC 4027 is an unusual interacting one-armed barred spiral.
13.1" (9/22/84): a spiral arm is suspected north of the nucleus trailing to the east.
8" (3/28/81): faint, moderately large, no details.