NGC 1502

Number of stars per data source

	Reference   25 :   28 stars
	Reference   50 :    3 stars
	Reference  120 :   16 stars

References

 25

Zug R.S.

(1933) Lick Obs. Bull. 16, 119

An investigation of color excess in galactic star clusters

 50

Cannon A.J., Pickering E.C.

(1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100

Henry Draper catalogue and extension

 120

Dombrowski W.A., Hagen-Thorn W.A.

(1964) Publ. Astron. Obs. Univ. Leningrad 20, 75