NGC 1444

NGC 1444
NGC 1444 imaged by the Sloan Digital Sky Survey
Observation data (J2000 epoch)
Right ascension03h 49m 23.8s[1]
Declination+52° 29′ 24″[1]
Distance4.2 kly (1.3 kpc)[1]
Physical characteristics
Estimated age7.08 Myr[1]
Other designationsCr 43, C 0345+525, OCL 394[2]
Associations
ConstellationPerseus
See also: Open cluster, List of open clusters

NGC 1444 is a small open cluster of stars in the northern constellation of Perseus, about 2-1⁄4° to the northwest of 43 Persei.[3] It has an angular diameter of 4 arcminutes and a brightness of 6.60 in visual magnitude. The cluster has sixty members of seventh magnitude or fainter, and is better appreciated in larger telescopes.[3] NGC 1444 was discovered on 18 December 1788 by the German-British astronomer William Herschel.[4][5][6] It is located at a distance of 4,200 light-years from the Sun and is about 7.1[1] million years old. The cluster has a physical core radius of 1.73 ± 0.42 ly and a tidal radius of 17.4 ± 4.2 ly.[1] The most prominent member is the triple star system Σ446, with a magnitude 6.7 primary.[7] The cluster is a member of the Camelopardalis OB1 association.[7]

  1. ^ a b c d e f Cite error: The named reference kharchenko2013 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference O'Meara2007 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Ford was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference NED was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SEDS was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Crossen2012 was invoked but never defined (see the help page).