Berkeley 73

Number of stars per data source

	Reference  411 :  367 stars
	Reference  448 :  461 stars

References

 411
Ortolani S., Bica E., Zoccali M.
(2005) Astron. Astrophys. 429, 607
The old open clusters Berkeley 36, Berkeley 73 and Biurakan 13 (Berkeley 34)
2005A&A...429..607O
 448
Carraro G., Geisler D., Moitinho A., Baume G., Vazquez R.A.
(2005) Astron. Astrophys. 442, 917
A photometric study of the old open clusters Berkeley 73, Berkeley 75 and Berkeley 25
2005A&A...442..917C