Astronomy:NGC 1624

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Short description: Open cluster in the constellation Perseus
NGC 1624
NGC 1624 IGAPS g, r, ha, i smooth.jpg
Image of NGC 1624 with the Isaac Newton Telescope
Credit: IGAPS
Observation data (J2000 epoch)
ConstellationPerseus
Right ascension 04h 40m 36.0s[1]
Declination+50° 27′ 42″[1]
Distance20000 ± 2000 ly (6000 ± 600 pc[2])
Apparent magnitude (V)11.8[1]
Physical characteristics
Estimated age<4 Myr[2]
Other designationsCr 53, C 0436+503, OCl 403, Tribble Nebula
See also: Open cluster, List of open clusters

NGC 1624, also known as Sh2-212[3] 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 1790.[4] NGC 1624 is about 20,000 ly (6,000 pc) from Earth, and latest estimates give it an age of less than 4 million years.[2] Its apparent magnitude is 11.8,[1] and apparent diameter is about 3.0 arc minutes.[4] Its celestial location is right ascension (α)  04h 40m 36.0s and declination (δ) +50° 27′ 42″.[1] It is potentially an area of massive star formation.[5]

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.

Along with nearby emission nebula Sh2-211[6] it makes up what has become known as the Tribble Nebulae,[7] so called because they look like the furry creatures first introduced in the Star Trek episode "The Trouble with Tribbles".

Gallery

  • The Tribble Nebula in Perseus, Sh2-211 and Sh2-212

  • NGC 1624 in mid-infrared with unWISE

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "NGC 1624". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1624. 
  2. ↑ 2.0 2.1 2.2 "Sejong Open Cluster Survey (SOS) - IV. The Young Open Clusters NGC 1624 and NGC 1931". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Sejong+Open+Cluster+Survey+%28SOS%29+-+IV.+The+Young+Open+Clusters+NGC+1624+and+NGC+1931. 
  3. ↑ "Sh2-212". http://galaxymap.org/cat/view/sharpless/212. 
  4. ↑ 4.0 4.1 Seligman, Courtney. "New General Catalogue objects: NGC 1600 - 1649". http://cseligman.com/text/atlas/ngc16.htm#1624. 
  5. ↑ 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. doi:10.1051/0004-6361:20079233. 
  6. ↑ "Sh2-211". http://galaxymap.org/cat/view/sharpless/211. 
  7. ↑ "Tribble Nebulae". 15 November 2021. https://www.flickr.com/photos/forthimage/51682805275/. 

External links


Coordinates: Sky map 04h 40m 36s, +50° 27′ 42″




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