NGC 6611
Number of stars per data source
Reference 38 : 1 star
Reference 57 : 11 stars
Reference 88 : 2 stars
Reference 98 : 2 stars
Reference 202 : 3 stars
Reference 206 : 4 stars
Reference 207 : 1 star
Reference 265 : 14 stars
Reference 275 : 1 star
Reference 303 : 2 stars
Reference 318 : 66 stars
Reference 591 : 1 star
Reference 923 : 26 stars
Reference 999 : 4 stars
Reference 1021 : 85 stars
Reference 1034 : 16 stars
Reference 1044 : 9 stars
References
- 38
- Hiltner W.A., Johnson H.L.
- (1956) Astrophys. J. 124, 367
- The law of interstellar reddening and absorption
- 1956ApJ...124..367H
- 57
- Walker M.F.
- (1961) Astrophys. J. 133, 438
- Studies of extremely young clusters. IV. NGC 6611
- 1961ApJ...133..438W
- 88
- Conti P.S., Alschuler W.R.
- (1971) Astrophys. J. 170, 325
- Spectroscopic studies of O-type stars. I. Classification and absolute magnitudes
- 1971ApJ...170..325C
- 98
- Conti P.S., Leep E.M.
- (1974) Astrophys. J. 193, 113
- Spectroscopic observations of O-type stars. V. The hydrogen lines and lambda 4686 He II
- 1974ApJ...193..113C
- 202
- Morgan W.W., Code A.D., Whitford A.E.
- (1955) Astrophys. J. Suppl. 2, 41
- Studies in galactic structure. II. Luminosity classification for 1270 blue giant stars
- 1955ApJS....2...41M
- 206
- Hiltner W.A.
- (1956) Astrophys. J. Suppl. 2, 389
- Photometric, polarization and spectrographic observations of O and B stars
- 1956ApJS....2..389H
- 207
- Hoag A.A., Applequist L.
- (1965) Astrophys. J. Suppl. 12, 215
- Distance moduli of open clusters
- 1965ApJS...12..215H
- 265
- Hiltner W.A., Morgan W.W.
- (1969) Astron. J. 74, 1152
- UBV photometry and spectral types in NGC 6611
- 1969AJ.....74.1152H
- 275
- Walborn N.R.
- (1972) Astron. J. 77, 312
- Spectral classification of OB stars in both hemisphere and the absolute-magnitude calibration
- 1972AJ.....77..312W
- 303
- Walborn N.R.
- (1982) Astron. J. 87, 1300
- Two-dimensional spectral classification for O stars in the southern Milky Way
- 1982AJ.....87.1300W
- 318
- Hillenbrand L. A., Massey P., Strom S.E., Merrill K.M.
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- NGC 6611: a cluster caught in the act
- 1993AJ....106.1906H
- 591
- Garmany C.D., Vacca W.D.
- (1991) Publ. Astron. Soc. Pacific 103, 347
- New spectral classifications for O-type stars in the northern hemisphere
- 1991PASP..103..347G
- 923
- Bosch G.L., Morrell N.I., Niemela V.S.
- (1999) Rev. Mex. Astron. Astrofis. 35, 85
- Stellar spectroscopy in NGC 6611: binary frequency and new spectral types of several early type stars
- 1999RMxAA..35...85B
- 999
- Houk N., Cowley A.P., Smith-Moore M.
- University of Michigan (Ann Arbor) Vol 1 (1975), Vol 2 (1978), Vol 3 (1982), Vol 4 (1988), Vol 5 (1999)
- The University of Michigan Catalogue of two-dimensional Spectral Types for the HD stars
- 1975mctd.book.....H
- 1021
- Evans C.J., Smartt S.J., Lee J.-K., et al.
- (2005) Astron. Astrophys. 437, 467
- The VLT-FLAMES survey of massive stars: Observations in the galactic clusters NGC 3293, NGC 4755 and NGC 6611
- 2005A&A...437..467E
- 1034
- Wolff S.C., Strom S.E., Dror D., Venn K.
- (2007) Astron. J. 133, 1092
- Rotational Velocities for B0-B3 Stars in Seven Young Clusters: Further Study of the Relationship between Rotation Speed and Density in Star-Forming Regions
- 2007AJ....133.1092W
- 1044
- Sana H., Gosset E., Evans C.J.
- (2009) Mon. Not. R. Astron. Soc. 400, 1479
- The massive star binary fraction in young open clusters - II. NGC6611 (Eagle Nebula)
- 2009MNRAS.400.1479S