NGC/IC Project Restoration Effort

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NGC4322

 

Basic Information


Location and Magnitude


Right Ascension: 12:23:1.7
Declination: +15:54:19
Constellation: COM
Visual Magnitude: 13.9

Historic Information


Discoverer: Tempel
Year of discovery: 1882
Discovery aperture: 11.0

Observational


Summary description: 2, vF, n of M 100
Sub-type: SB0

Corwin's Notes

===== NGC 4322 is probably a star. It, NGC 4323, and NGC 4327 were all found by Tempel while he was observing NGC 4321 (M 100) and NGC 4328. He only gives descriptive places for them with respect to the brighter objects, so the NGC positions are only approximate. His entire note for the three objects reads (translation by me), "... on my drawing, there are three other very faint nebulae in the vicinity, two north of and close to 2890 [N4321], and the third south of 2894 [N4328]." Given Tempel's propensity for seeing nebulae where only stars exist, I think that the star northwest of M 100, and one of the stars southeast, along with the galaxy to the northeast, are Tempel's three objects. It's certainly possible to argue with this since Tempel gives no details about the appearance of his objects, but this is a reasonable hypothesis under the circumstances. The galaxy to the northeast has been called "NGC 4322 = NGC 4323" by many observers. Since Tempel's description is very clear about his having seen two "nebulae" north of M 100, the identity cannot be true. This has the unfortunate consequence that the number 4322 is put onto a star, but I prefer this to inverting the RA order.