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Five suspected Beta Cephei stars revisited
The following suspected Beta Cephei stars have been observedphotometrically or rediscussed: HDE 232999, HD 34626, 43818, 43837 and190467. The first two stars have been found to be Be stars and, likemany such stars, they vary in brightness on a time scale of hours. Thelast three stars are bright giants or supergiants and, like most suchstars, they vary in brightness on a time scale of days. The period andamplitude of the photometric variability of these five stars can thus beunderstood in the general context of stellar variability, even thoughnone of them appears to be a classical Beta Cephei star.
| Photoelectric measurements of lunar occultations. VIII
Photoelectric timings are reported for 276 lunar occultation eventswhich were observed between March 1975 and February 1976. The timings(in UTC) are based on Loran G equipment of a lunar laser-ranging groupor on WWV signals. Angular diameters are determined for HR 5301, HD176124, Chi-1-Orionis, and HR 601. Twenty cases of possible or actualdouble stars, including Beta Capricorni, are noted along with oneprobable triple system (51 Piscium). Several technical and computationaldifficulties encountered in this program are discussed.
| A photometric study of some early B stars whose spectral lines vary in sharpness.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970AJ.....75..818P&db_key=AST
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Avci |
| Sað Açýklýk: | 06h19m14.78s |
| Yükselim: | +20°27'28.1" |
| Görünürdeki Parlaklýk: | 8.551 |
| özdevim Sað Açýklýk: | 0.8 |
| özdevim Yükselim: | -20.5 |
| B-T magnitude: | 8.888 |
| V-T magnitude: | 8.579 |
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