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NGC 1624

Coordinates: Sky map 04h 40m 36s, +50° 27′ 42″
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NGC 1624
File:NGC 1624 DSS.jpg
Image of NGC 1624
Credit: DSS
Observation data (J2000 epoch)
Right ascension04h 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
Associations
ConstellationPerseus
See also: Open cluster, List of open clusters

NGC 1624 is a very young open cluster located in the constellation Perseus inside an emission nebula. It was discovered by the German-British astronomer William Herschel in 1790.[3] NGC 1624 is located at about 20,000 ly (6,000 pc) away and the latest estimates give an age of less than 4 million years.[2] The apparent magnitude is 11.8,[1] and apparent diameter is about 3.0 arc minutes.[3] Its celestial location is right ascension (α) 04h 40m 36.0s and declination (δ) +50° 27′ 42″.[1]

According to Robert Trumpler's classification of open clusters, this cluster contains less 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.

References

  1. ^ a b c d e "NGC 1624". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 November 2017.
  2. ^ a b c "Sejong Open Cluster Survey (SOS) - IV. The Young Open Clusters NGC 1624 and NGC 1931". SIMBAD. Centre de données astronomiques de Strasbourg.
  3. ^ a b Seligman, Courtney. "New General Catalogue objects: NGC 1600 - 1649". cseligman.com. Retrieved 9 November 2017.
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