NGC 1976

Number of stars per data source

	Reference    1 :    1 star
	Reference   44 :    4 stars
	Reference   64 :    6 stars
	Reference  107 :    1 star
	Reference  114 :    1 star
	Reference  149 :  123 stars
	Reference  164 :   11 stars
	Reference  232 :    2 stars
	Reference  261 :    1 star
	Reference  262 :    2 stars
	Reference  271 :    2 stars
	Reference  316 :    2 stars
	Reference  369 :    1 star
	Reference  382 :    1 star
	Reference  465 :    9 stars
	Reference  537 :    2 stars

References

 1
Stromgren B., Perry C.L.
(1965) Astron. J. 71, 709
Institute for Advanced Study, Princeton, N. J. second version, unpublished Crawford D.L., Barnes J.V., Faure B.Q., Golson J.C. Photoelectric Hbeta photometry for 1217 stars brighter than V = 6.5 mag
1965AJ.....71..709
 44
Crawford D.L., Barnes J.V., Golson J.C.
(1971) Astron. J. 76, 1058
Four-color and Hbeta photometry for bright B-type stars in the northern hemisphere
1971AJ.....76.1058C
 64
Crawford D.L.
(1958) Astrophys. J. 128,185
Two-dimensional spectral classification by narrow-band photometry for B-stars in clusters and associations
1958ApJ...128..185C
 107
Feinstein A.
(1974) Mon. Not. R. Astr. Soc. 169, 171
Photoelectric measures of the Hydrogen lines in early-type stars
1974MNRAS.169..171F
 114
Morrison N.D.
(1975) Astrophys. J. 200,113
Photometry of O-type stars,interpreted with reference to model atmospheres
1975ApJ...200..113M
 149
Warren W.H., Hesser J.E.
(1977) Astrophys. J. Suppl. 34, 115
A photometric study of the Orion OB 1 association. I. Observational data
1977ApJS...34..115W
 164
Gronbech B., Olsen E.H.
(1977) Astron. Astrophys. Suppl. 27, 443
Photoelectric Hbeta photometry for bright O to G0 type stars south of declination +10
1977A&AS...27..443G
 232
Oblak E.
(1978) Astron. Astrophys. Suppl. 34, 453
uvby beta photometry of wide visual double stars with B, A and F spectral type - I
1978A&AS...34..453O
 261
Kilkenny D.
(1981) Mon. Not. R. Astron. Soc. 194, 927
Hbeta photometry of southern early-type stars
1981MNRAS.194..927K
 262
Oblak E., Chareton M.
(1980) Astron. Astrophys. Suppl. 41, 255
Ages and uvby beta photometry of wide visual binaries - II
1980A&AS...41..255O
 271
Shobbrook R.R.
(1978) Mon. Not. R. Astron. Soc. 184, 43
The evolutionary state of the Beta Canis Majoris variables I. Accurate beta photometry of early B stars
1978MNRAS.184...43S
 316
Lindroos K.P.
(1983) Astron. Astrophys. Suppl. 51, 161
A study of visual double stars with early type primaries. II. photometric results
1983A&AS...51..161L
 369
Wade B.R., Smithh L.F.
(1985) Mon. Not. R. Astr. Soc. 212, 77
uvby Hbeta photometry of UV-bright stars
1985MNRAS.212...77W
 382
Kilkenny D., Whittet D.C.B., Davies J.K., Evans A., Bode M.F., Robson E.I., Banfield R.M.
(1985) SAAO Circ. 9, 55
Optical and infrared photometry of southern early-type shell stars and pre-main-sequence variables
1985SAAOC...9...55K
 465
Stetson P.B.
(1991) Astron. J. 102, 589
Early type high-velocity stars in the solar neighborhood. IV. Four-color and H-beta photometry
1991AJ....102..589S
 537
Fabregat J., Torrejon J.M., Reig P., Bernabeu G., Busquets J., Marco A., Reglero V.
(1996) Astron. Astrophys. Suppl. 119, 271
Be stars in open clusters. I. uvby Beta photometry
1996A&AS..119..271F