SPECTRAL TYPES OF SOME OF THE BRIGHTER STARS IN THE CLUSTER M-67

[1] BAADE W, 1950, PUB OBS U MICH, V10

[2] FAGERHOLM E, 1906, THESIS UPPSALA

[3] FUNDAMENTAL STELLAR PHOTOMETRY FOR STANDARDS OF SPECTRAL TYPE ON THE REVISED SYSTEM OF THE YERKES SPECTRAL ATLAS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (03) : 313 - 352

[4] SPECTRAL CLASSIFICATION OF THE HIGH-VELOCITY STARS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (02) : 241 - &

[5] KEENAN PC, 1951, ASTROPHYSICS

[6] SPECTRAL TYPES OF STARS IN THE GLOBULAR CLUSTERS MESSIER 3 AND MESSIER 13 [J]. ASTROPHYSICAL JOURNAL, 1947, 105 (01) : 204 - &

[7] THE SPECTRA OF THE BRIGHT STARS OF TYPES F5-K5 [J]. ASTROPHYSICAL JOURNAL, 1952, 116 (01) : 122 - &

[8] Trumpler R. J., 1930, LICK OBS B, V14, P154

[9] VANMAANEN A, 1942, AP J, V96, P282

[10] 1953, Z AP, V31, P316

[1] BAADE W, 1950, PUB OBS U MICH, V10

[2] FAGERHOLM E, 1906, THESIS UPPSALA

[3] FUNDAMENTAL STELLAR PHOTOMETRY FOR STANDARDS OF SPECTRAL TYPE ON THE REVISED SYSTEM OF THE YERKES SPECTRAL ATLAS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (03) : 313 - 352

[4] SPECTRAL CLASSIFICATION OF THE HIGH-VELOCITY STARS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (02) : 241 - &

[5] KEENAN PC, 1951, ASTROPHYSICS

[6] SPECTRAL TYPES OF STARS IN THE GLOBULAR CLUSTERS MESSIER 3 AND MESSIER 13 [J]. ASTROPHYSICAL JOURNAL, 1947, 105 (01) : 204 - &

[7] THE SPECTRA OF THE BRIGHT STARS OF TYPES F5-K5 [J]. ASTROPHYSICAL JOURNAL, 1952, 116 (01) : 122 - &

[8] Trumpler R. J., 1930, LICK OBS B, V14, P154

[9] VANMAANEN A, 1942, AP J, V96, P282

[10] 1953, Z AP, V31, P316