Berkeley 22

Number of stars per data source

	Reference   78 : 1014 stars
	Reference   88 : 1405 stars
	Reference  420 : 1492 stars

References

 78
Kaluzny J.
(1994) Astron. Astrophys. Suppl. 108, 151
CCD photometry of distant open clusters: I. Berkeley 22, Berkeley 29 and Berkeley 54
1994A&AS..108..151K
 88
Phelps R.L., Janes K.A., Montgomery K.A.
(1994) Astron. J. 107, 1079
Development of the galactic disk: a search for the oldest open clusters
1994AJ....107.1079P
 420
Di Fabrizio L., Bragaglia A., Tosi M., Marconi G.
(2005) Mon. Not. R. Astron. Soc. 359, 966
Berkeley 22, an old and distant open cluster toward the galactic anticentre
2005MNRAS.359..966D