Open cluster in Perseus
| NGC 1220 |
|---|
 NGC 1220 from the Digitized Sky Survey (DSS) |
| Observation data (J2000.0 epoch) |
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| Right ascension | 03h 11m 40s[1][Note 1] |
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| Declination | 53° 20′ 45″[2][Note 2] |
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| Distance | 5,900 light-years (1,800 pc)[2] |
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| Apparent magnitude (V) | 11.8[3] |
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| Apparent dimensions (V) | 2.6′[1] |
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| Physical characteristics |
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| Radius | 3.4 light-years (1.05 pc)[2] |
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| Estimated age | 60 million years[2] |
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| Other designations | Cr 37, OCL 380[2][4] |
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| Associations |
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| Constellation | Perseus |
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| See also: Open cluster, List of open clusters |
NGC 1220 is a young compact open cluster in the constellation Perseus. It was discovered by John Herschel in 1831.[5]
Location
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]
Composition
NGC 1220 consists of approximately 26 stars with spectral types between A0 and B9, although the majority fall between A5 and B5.[2]
Notes
- ^ Exact values for seconds vary from 40.0s (Ortolani et al. (2002)) to 40.8s (SIMBAD).
- ^ Estimates for arcseconds vary from 38″ (SIMBAD) to 53.4″ (NED).
References
- ^ a b c "NGC 1220". Strasbourg Astronomical Data Center. Retrieved 2024-04-02.
- ^ a b c d e f g Ortolani, S.; Carraro, G.; Covino, S.; Bica, E.; Barbuy, B. (2002-04-09). "A photometric study of the young open cluster NGC 1220". Galactic structure, stellar clusters, and populations. Astronomy & Astrophysics. 391 (1). EDP Sciences (published 2002-07-29): 179–185. doi:10.1051/0004-6361:20020794. hdl:10183/98516.
{{cite journal}}: CS1 maint: date and year (link) - ^ a b "NGC 1220 – Open Cluster in Perseus". The Sky Live. Retrieved 2024-03-30.
- ^ 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.
- ^ "NGC1220". NGC/IC Restoration Project. Retrieved 2024-03-30.
Category
