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Full-Text Articles in Physical Sciences and Mathematics
Photometry Of The Young Open Cluster Trumpler 37, Laurence A. Marschall, Neil F. Comins, Gary B. Karshner
Photometry Of The Young Open Cluster Trumpler 37, Laurence A. Marschall, Neil F. Comins, Gary B. Karshner
Physics and Astronomy Faculty Publications
Photoelectric UBV observations of 120 stars in the young open cluster Trumpler 37 are presented, primarily in the magnitude range 10.0<V
Sao 23229: A New Double-Lined Spectroscopic Eclipsing Binary, Laurence A. Marschall, Robert P. Stefanik, Harold L. Nations, Robert J. Davis
Sao 23229: A New Double-Lined Spectroscopic Eclipsing Binary, Laurence A. Marschall, Robert P. Stefanik, Harold L. Nations, Robert J. Davis
Physics and Astronomy Faculty Publications
The discovery of eclipses of the bright star SAO 23229 (HD 14384; V=6.9; Spectral Type F5 V) by Indiana observer Dan Kaiser was described in a recent article in Sky and Telescope magazine (MacRobert, 1990). Photoelectric observations by H. Landis and D. Williams, reproduced in that article, show eclipses of 0.55 mag depth and period of 2.111 days. No secondary eclipses are reported, leaving open the question of whether the system contains a very dim secondary or whether it consists of two identical stars with an actual period of 4.2 days. We report here observations that favor the latter interpretation. …