NGC 884

Number of stars per data source

	Reference   50 :   16 stars
	Reference  132 :   17 stars

References

 50

Cannon A.J., Pickering E.C.

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

Henry Draper catalogue and extension

 132

Bragg A.E., Kenyon S.J.

(2002) Astron. J. 124, 3289

H II emission from a complete spectroscopic survey of Be stars in h and chi Persei

2002AJ....124.3289B