NGC 1220 explained

NGC 1220
Epoch:	J2000.0
Constellation:	Perseus
Ra:	^[1] ^[2]
Dec:	^[3]
Dist Ly:	1800order=flipNaNorder=flip^[4]
Appmag V:	11.8^[5]
Radius Ly:	1.05pc
Names:	Cr 37, OCL 380^[6]

NGC 1220 is a young compact open cluster in the constellation Perseus. It was discovered by John Herschel in 1831.^[7]

Location

The cluster is located at = 143.04°, = −3.96° in the galactic coordinate system, and is 120 parsecs above the galactic plane.^{[1] [4]} It is approximately 6^m 42^s east and 10′ 12″ south from the nearest visible star, γ Persei.^[5]

Composition

NGC 1220 consists of approximately 26 stars with spectral types between A0 and B9, although the majority fall between A5 and B5.^[4]

Notes and References

1. Web site: NGC 1220 . 2024-04-02. Strasbourg Astronomical Data Center.
2. Exact values for seconds vary from 40.0^s (Ortolani et al. (2002)) to 40.8^s (SIMBAD).
3. Estimates for arcseconds vary from 38″ (SIMBAD) to 53.4″ (NED).
4. A photometric study of the young open cluster NGC 1220 . . Ortolani . S. . 2002-04-09 . 1 . 391 . Carraro . G. . . 10.1051/0004-6361:20020794 . 2002 . Galactic structure, stellar clusters, and populations . 2002-07-29 . Covino . S. . Bica . E. . Barbuy . B.. 179–185 . 10183/98516 . free .
5. Web site: NGC 1220 – Open Cluster in Perseus . 2024-03-30. The Sky Live.
6. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. . Annals of the Observatory of Lund . Collinder . Per . 2 . 1931 . 4.
7. Web site: NGC1220. 2024-03-30. NGC/IC Restoration Project.