NGC 1220 | |
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NGC 1220 from the Digitized Sky Survey (DSS) | |
Observation data (J2000.0 epoch) | |
Right ascension | 03 11 40 |
Declination | 53° 20′ 45″ |
Distance | 5,900 light-years (1,800 pc) |
Apparent magnitude (V) | 11.8 |
Apparent dimensions (V) | 2.6′ |
Physical characteristics | |
Radius | 3.4 light-years (1.05 pc) |
Estimated age | 60 million years |
Other designations | Cr 37, OCL 380 |
Associations | |
Constellation | Perseus |
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.
The cluster is located at l = 143.04°, b = −3.96° in the galactic coordinate system, and is 120 parsecs above the galactic plane. It is approximately 6 42 east and 10′ 12″ south from the nearest visible star, γ Persei.
NGC 1220 consists of approximately 26 stars with spectral types between A0 and B9, although the majority fall between A5 and B5.
Notes
- Exact values for seconds vary from 40.0 (Ortolani et al. (2002)) to 40.8 (SIMBAD).
- Estimates for arcseconds vary from 38″ (SIMBAD) to 53.4″ (NED).
References
- ^ "NGC 1220". Strasbourg Astronomical Data Center. Retrieved 2024-04-02.
- ^ 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) - ^ "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.
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