NGC 7789

Number of stars per data source

	Reference   50 :    3 stars
	Reference  532 :    1 star

References

 50

Burbidge G.R., Burbidge E.M.

(1959) Astrophys. J. 129, 513

Spectra of stars in galactic clusters

1959ApJ...129..513B

 532

Walker M.F., Bidelman W.P.

(1960) Publ. Astr. Soc. Pacific 72, 50

The reddest giants in M11 and NGC 7789

1960PASP...72...50W