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- Institute for Advanced Study, Princeton, N. J. second version, unpublished Crawford D.L., Barnes J.V., Faure B.Q., Golson J.C. Photoelectric Hbeta photometry for 1217 stars brighter than V = 6.5 mag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