Astronomy:NGC 136
From HandWiki
| NGC 136 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Cassiopeia[1] |
| Right ascension | 00h 31m 36.0s[2] |
| Declination | +61° 30′ 36″[2] |
| Apparent magnitude (V) | 11.5[1] |
| Apparent dimensions (V) | 1.5′[1] |
| Physical characteristics | |
| Estimated age | 250 Ma[1] |
| Notable features | Very faint, small, and compressed |
| Other designations | Collinder 4 |
NGC 136 is an open cluster of stars in the constellation Cassiopeia.[1] It was discovered by William Herschel on November 26, 1788.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 145. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
- ↑ 2.0 2.1 "NGC 136". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+136.
- ↑ Seligman, Courtney. "NGC Objects: NGC 100 - 149". Celestial Atlas. http://cseligman.com/text/atlas/ngc1.htm#136.
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