NGC/IC Project Restoration Effort

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NGC4399

 

Basic Information


Location and Magnitude


Right Ascension: 12:25:42.9
Declination: +33:31:0
Constellation: CVN
Visual Magnitude: 14.0

Historic Information


Discoverer: Stoney J.
Year of discovery: 1850
Discovery aperture: 72.0

Observational


Summary description: vF, form trapezium with 2958 and 62
Sub-type: GxyP

Corwin's Notes

===== NGC 4399, NGC 4400, and NGC 4401 are bright HII regions in NGC 4395. WH found N4395 and N4401, the main body of the galaxy and the brightest HII region, recording them as two nebulae under one number. Thus, the NGC has the WH numbers given rather awkwardly as "V 29.1" and "V 29.2." Lord Rosse (or his observers) found the other two objects, but did not measure their offsets from nearby stars or the nucleus. Instead, they printed a diagram which can be pretty easily related to the sky, in spite of some distortion. The lack of offsets also allowed Dreyer to give only approximate positions for N4399 and N4400. Lord Rosse's sketch of the field, however, makes the identifications clear.

Steve's Notes

===== NGC 4399 17.5" (5/15/99): faintest of three HII knots observed in NGC 4395. Appeared extremely faint and small, 10"-15" in size and situated 2.3' SW of the ill-defined core on a line with a mag 14.5 star to the NE of the core. Required averted vision to confirm.