NGC/IC Project Restoration Effort

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NGC1146

 

Basic Information


Location and Magnitude


Right Ascension: 2:57:41.0
Declination: +46:25:3
Constellation: PER
Visual Magnitude:

Historic Information


Discoverer: d'Arrest
Year of discovery: 1864
Discovery aperture: 11.0

Observational


Summary description: Cl, vS, vF + neb
Sub-type: *2

Corwin's Notes

===== NGC 1146 is a group of four stars near d'A's position. He mentions a triple star near to the south -- that is what Brian Skiff and Tom DeMary have taken as the object itself, Brian noting that it is the southeastern of two groups of stars. For some time, I had thought that the NGC number applied to both groups. Seeing d'A's full description has finally made it clear that I was wrong. Here is what he has to say (my translation): "Cluster, very small and not rich. At 226X some nebulosity is seen. A triple star is close south." Aside from there being no nebulosity, this is a very good description of the field. Perhaps some of the fainter stars nearby lent the appearance of nebulosity on a less than perfect night. Finally, Wolfgang Steinicke got the right asterism a decade ago during his early work on the NGC.

Steve's Notes

===== NGC 1146 18" (11/23/05): this asterism consists of a 30" pair of mag 12/13 stars with a couple of fainter companions making a quadruple. About 1' NW is a faint, hazy clump of three mag 14-15 stars. Viewed at 225x and 300x. CGCG 554-017 lies 6.2' NE. Listed as nonexistent in the RNGC.