NGC/IC Project Restoration Effort

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NGC4038

 

Basic Information


Location and Magnitude


Right Ascension: 12:1:52.8
Declination: -18:51:52
Constellation: CRV
Visual Magnitude: 10.3

Historic Information


Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7

Observational


Summary description: pB, cL, R, vgbM
Sub-type: SBm

Steve's Notes

===== NGC 4038 48" (4/1/11): I took a quick look at the Antennae Galaxy to see the faint tidal tails that shoot north and south from the east end of NGC 4038/4039. The tidal tail heading south from NGC 4038 (the northern component) was easily visible, sweeping 2' S but then quickly dimming. The streamer heading north was also visible but appeared detached from the galaxies. It was picked up ~2.5' NE of NGC 4038 and extended 2' N, terminating at a faint star. 24" (4/10/08 - Magellan Observatory, Australia): this was an amazing object in the 24" at 350x. The main, bright northern component (NGC 4038) was partially annular, with a very bright knotty rim and a darker center giving a truly unique appearance for a galaxy. At least 3 knots were visible embedded along its rim. On the SE side is the brightest knot (the nucleus of the galaxy) which appeared faint, small, ~12" diameter. A second fainter knot is on the west side and was only ~6" in size. Finally, a third very faint 6" knot is on the north side. The three knots were roughly spaced out 120¡ apart along the outer portion of this tortured galaxy. An elongated "arm" (the interacting companion NGC 4039) is attached on the east end and curves around on the south side towards the southwest. Another very faint, but slightly larger 20" knot is embedded along the main portion of NGC 4039, roughly halfway along its length. At the southwest tip of the brighter portion of NGC 4039 was a relatively large, brighter knot (its nucleus) that at times appeared double. Surrounding the southwest portion of NGC 4039 is a much fainter outer halo extended SW-NE. This fainter halo extends further southwest for a few arc minutes and widens to a bulbous shape at the end. This was by far the most detailed view I've seen of the Antennae galaxy. NGC 4027, another disturbed galaxy, lies SW. 17.5" (5/14/88): fairly bright, moderately large. Forms a striking "shrimp-like" or "comma" shape with the tail attached at the east end and extending to the south. Appears clearly darker between the two objects on the west side. 13" (5/21/82): appears as two irregular galaxies connected at the east end.