NGC 4439

Number of stars per data source

	Reference   82 :    3 stars
	Reference  119 :    1 star
	Reference  473 :    3 stars

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

 119

Deutschman W.A., Davis R.J., Schild R.E.

(1976) Astrophys. J. Suppl. 30, 97

The galactic distribution of interstellar absorption as determined from the Celescope catalog of ultraviolet stellar observations and a new catalog of UBV, Hbeta photoelectric observations

1976ApJS...30...97D

 473

Eggen O.J.

(1992) Astron. J. 103, 1381

Photometry of F-K type bright giants and supergiants. I. Intermediate band and Hbeta observations

1992AJ....103.1381E