1977
DOI: 10.1086/112093
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Four-color and H-beta photometry of open clusters. XII - NGC 6910 and NGC 6913

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Cited by 21 publications
(25 citation statements)
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“…In the nucleus area extinction is variable, Ay being between 3.2 and 3.9 mag. The mean extinction value Ay = 3.65 mag is in good agreement with the results by Crawford (1977). Judging from its distance and Ay value, the supergiant Tifft 2 (HD 194279) is a probable member of NGC 6910.…”
Section: Discussionsupporting
confidence: 88%
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“…In the nucleus area extinction is variable, Ay being between 3.2 and 3.9 mag. The mean extinction value Ay = 3.65 mag is in good agreement with the results by Crawford (1977). Judging from its distance and Ay value, the supergiant Tifft 2 (HD 194279) is a probable member of NGC 6910.…”
Section: Discussionsupporting
confidence: 88%
“…They were used to derive the mean distance of the cluster which is r = 1530±120 pc. This value is in good agreement with the results from Crawford et al (1977), Schmidt (1963) and Reddish (1967) obtained from the uvby and UBV photometries and spectral classification, but disagrees with the value r = 980 pc obtained by Shevchenko (1989). The plot "extinction versus distance" is shown in Fig.…”
Section: Discussionsupporting
confidence: 82%
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“…Since the original h and s Persei observations (Crawford, Glaspey, & Perry 1970) do not include V values, we used the values given by Johnson & Morgan (1955), which were also taken with the same instrumentation, for the V transformation. The list of standard stars used can be found in Table 2, along with their standard values used for the transformation, taken from and Johnson & Morgan (1955) for h and s Persei, Perry, Lee, & Barnes (1978) for NGC 2169, Crawford, Barnes, & Hill (1977) for NGC 6910, and Canterna, Perry, & Crawford (1979) for NGC 1039. Spectral types, when available, have been taken from Schild (1965) and Slettebak (1968) for h and s Persei, Perry et al (1978) for NGC 2169, Morgan & Harris (1956) and Applequist (1965) for NGC 6910, andCanterna et al (1979) for NGC 1039.…”
Section: èèèèèèèèèèèèèèèmentioning
confidence: 99%