| NGC 659 | |
|---|---|
 | |
| Observation data (J2000.0epoch) | |
| Right ascension | 01h 44m 04s[1] |
| Declination | +60° 40′[1] |
| Distance | 8.2kly[2] |
| Apparent magnitude (V) | 7.9[1] |
| Apparent dimensions (V) | 6.0′[3] |
| Physical characteristics | |
| Mass | 105 to 106 M☉ |
| Radius | 7.5[2] |
| Estimated age | 20my[2] |
| Other designations | NGC 659,Cr 19, OCL 332 |
| Associations | |
| Constellation | Cassiopeia |
| See also:Open cluster,List of open clusters | |
NGC 659 , also known as theYin-Yang Cluster[4] is anopen cluster in theCassiopeia constellation. It was discovered byCaroline Herschel in 1783.[2] It was later described byWilliam Herschel as "A beautiful cluster of pretty large stars near 15' diameter considerably rich".[5] It is located in the sky almost directly next toNGC 663.
Media related toNGC 659 at Wikimedia Commons| Stars |
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 | This star cluster–related article is astub. You can help Wikipedia byexpanding it. |
