NGC 1220

NGC 1220
NGC 1220 from the Digitized Sky Survey (DSS)
Observation data (J2000.0 epoch)
Right ascension03h 11m 40s[1][Note 1]
Declination53° 20′ 45″[2][Note 2]
Distance5,900 light-years (1,800 pc)[2]
Apparent magnitude (V)11.8[3]
Apparent dimensions (V)2.6′[1]
Physical characteristics
Radius3.4 light-years (1.05 pc)[2]
Estimated age60 million years[2]
Other designationsCr 37, OCL 380[2][4]
Associations
ConstellationPerseus
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

  1. ^ Exact values for seconds vary from 40.0s (Ortolani et al. (2002)) to 40.8s (SIMBAD).
  2. ^ Estimates for arcseconds vary from 38″ (SIMBAD) to 53.4″ (NED).

References

  1. ^ a b c "NGC 1220". Strasbourg Astronomical Data Center. Retrieved 2024-04-02.
  2. ^ 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)
  3. ^ a b "NGC 1220 – Open Cluster in Perseus". The Sky Live. Retrieved 2024-03-30.
  4. ^ 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.
  5. ^ "NGC1220". NGC/IC Restoration Project. Retrieved 2024-03-30.