NGC 1624

NGC 1624
Image of NGC 1624 with the Isaac Newton Telescope
Credit: IGAPS
Observation data (J2000 epoch)
Right ascension04h 40m 36.0s
Declination+50° 27′ 42″
Distance20000 ± 2000 ly (6000 ± 600 pc)
Apparent magnitude (V)11.8
Physical characteristics
Estimated age<4 Myr
Other designationsCr 53, C 0436+503, OCl 403, Tribble Nebula, Little Cocoon Nebula
Associations
ConstellationPerseus
See also: Open cluster, List of open clusters

NGC 1624, also known as Sh 2-212 in the Sharpless catalog, is a very young open cluster in the constellation Perseus inside an emission nebula. It was discovered by German-British astronomer William Herschel in December 1790. Together with the nearby nebula Sh 2-211, it forms part of the region nicknamed the Tribble Nebulae.

NGC 1624 is located approximately 20,000 ly (6,000 pc) from Earth, and latest estimates give it an age of less than 4 million years. Its apparent magnitude is 11.8, and apparent diameter is about 3.0 arc minutes. Its celestial location is right ascension (α) 04h 40m 36.0s and declination (δ) +50° 27′ 42″, which is toward the Galactic anticenter. It is potentially an area of massive star formation.

According to Robert Trumpler's classification of open clusters, this cluster contains fewer than 50 stars (letter p) with a high concentration (I) and whose magnitudes are distributed over an average interval (number 2). The letter n at the end (I2pn) means that the cluster is inside a nebula.

See also

References

  1. 1 2 3 4 5 6 "NGC 1624". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 November 2017.
  2. 1 2 3 "Sejong Open Cluster Survey (SOS) - IV. The Young Open Clusters NGC 1624 and NGC 1931". SIMBAD. Centre de données astronomiques de Strasbourg.
  3. 1 2 "The Tribble Nebulae NGC1624/Sh2-212 and Sh2-211 - Forthimage". 16 November 2021. Archived from the original on 2021-12-07. Retrieved 2026-08-09.
  4. ↑ "Sh2-212, Little Cocoon Nebula, SHO-RGB". Retrieved 10 October 2026.
  5. ↑ "Sh2-212". Galaxy Map. Retrieved 16 November 2021.
  6. 1 2 Seligman, Courtney. "New General Catalogue objects: NGC 1600 - 1649". cseligman.com. Retrieved 9 November 2017.
  7. ↑ Camargo, D.; et al. (July 2013). "Towards a census of the Galactic anticentre star clusters - III. Tracing the spiral structure in the outer disc". Monthly Notices of the Royal Astronomical Society. 432 (4): 3349–3360. arXiv:1304.5984. Bibcode:2013MNRAS.432.3349C. doi:10.1093/mnras/stt703.
  8. ↑ Deharveng, L.; Lefloch, B.; Kurtz, S.; Nadeau, D.; Pomarès, M.; Caplan, J.; Zavagno, A. (2008). "Triggered massive-star formation on the borders of Galactic H II regions". Astronomy & Astrophysics. 482 (2): 585–596. arXiv:0803.4152. doi:10.1051/0004-6361:20079233. S2CID 16100087.