NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC7520

 

Basic Information


Location and Magnitude


Right Ascension: 23:12:53.1
Declination: -23:28:8
Constellation: AQR
Visual Magnitude: 13.2

Historic Information


Discoverer: Tempel
Year of discovery: 1876
Discovery aperture: 11.0

Observational


Summary description: F, pS, bet 2 st
Sub-type: Sa

Corwin's Notes

===== NGC 7520 may be IC 5290. Tempel had trouble with the position, and gives it as "23 06 :: -24 35 :" (equinox 1855) in his paper. He does note that the nebula was "repeatedly seen". I5290 is the only object near his position -- aside from stars -- that he could have dug out. Of course, since there are many stars (e.g. NGC 4322) in his lists of "nebulae", this object too could well be another. Dreyer adds a note in the second IC that Howe could not find the object on two nights. A further curiosity is the added note in the NGC description reading "between 2 stars." This is not in Tempel's paper, so was apparently added by him later in a note to Dreyer. (Or, horror, Dreyer got the object confused with another ...)

Steve's Notes

===== NGC 7520 18" (10/25/08): fairly faint, fairly small, elongated 3:2 SW-NE, 0.6'x0.4', very weak concentration. Situated between two fainter doubles 5' NNE (a 15" pair of mag 13.5/14.5 stars) and 5' S (a 10" pair of mag 14 stars). Another mag 13 star lies 2' SE. NGC 7520 is listed as nonexistent in most sources. Harold Corwin suggests the possibility that NGC 7520 is equivalent to IC 5290 (described above).