NGC 4337

Number of stars per data source

	Reference   82 :    2 stars
	Reference  357 :    1 star

References

 82

Moffat A.F.J., Vogt N.

(1973) Astron. Astrophys. Suppl. 10, 135

Southern open star clusters III. UBV Hbeta photometry of 28 clusters between galactic longitudes 297 and 353

1973A&AS...10..135M

 357

Olsen E.H., Perry C.L.

(1984) Astron. Astrophys. Suppl. 56, 229

A catalogue of Hbeta photometry of southern A5 to G0 stars brighter than 8 m.3

1984A&AS...56..229O