Berkeley 1

Number of stars per data source

	Reference   86 : 2800 stars

References

 86
Skrutskie M.F., Cutri .M., Weinberg M.D., Schneider S., Carpenter J.M., et al.
(2006) Astron. J. 131, 1163
The Two Micron All Sky Survey (2MASS)
2006AJ....131.1163S