Astronomy:NGC 1220
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| NGC 1220 | |
|---|---|
| File:300px NGC 1220 from the Digitized Sky Survey (DSS) | |
| Observation data (J2000.0 epoch) | |
| Constellation | Perseus |
| Right ascension | 03h 11m 40s[1][Note 1] |
| Declination | 53° 20′ 45″[2][Note 2] |
| Distance | 5,900 light-years (1,800 pc)[2] |
| Apparent magnitude (V) | 11.8[3] |
| Apparent dimensions (V) | 2.6′[1] |
| Physical characteristics | |
| Radius | 3.4 light-years (1.05 pc)[2] |
| Estimated age | 60 million years[2] |
| Other designations | Cr 37, OCL 380[2][4] |
NGC 1220 is a young compact open cluster in the constellation Perseus. It was discovered by John Herschel in 1831.[5]
The cluster is located at l = 143.04°, b = −3.96° in the galactic coordinate system, and is 120 parsecs above the galactic plane.[1][2] It is approximately 6m 42s east and 10′ 12″ south from the nearest visible star, γ Persei.[3]
NGC 1220 consists of approximately 26 stars with spectral types between A0 and B9, although the majority fall between A5 and B5.[2]
Notes
References
- ↑ 1.0 1.1 1.2 "NGC 1220". https://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+1220+++++++++++++++++++++&QueryType=ned.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Ortolani, S.; Carraro, G.; Covino, S.; Bica, E.; Barbuy, B. (2002-04-09). "A photometric study of the young open cluster NGC 1220". Astronomy & Astrophysics (EDP Sciences) 391 (1): 179–185. 2002-07-29. doi:10.1051/0004-6361:20020794. https://www.aanda.org/articles/aa/full/2002/31/aah3605/aah3605.html.
- ↑ 3.0 3.1 "NGC 1220 – Open Cluster in Perseus". https://theskylive.com/sky/deepsky/ngc1220-object.
- ↑ Collinder, Per. "On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters.". Annals of the Observatory of Lund 2: 4. https://articles.adsabs.harvard.edu/pdf/1931AnLun...2....1C.
- ↑ "NGC1220". http://ngcicproject.observers.org/NGC/NGC_12xx/NGC_1220.htm.
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