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Radial Velocity Studies of Southern Close Binary Stars. II. Spring/Summer Systems
Radial velocity measurements and sine-curve fits to the orbital velocityvariations are presented for 14 close binary stars, S Ant, TT Cet, TWCet, AA Cet, RW Dor, UX Eri, YY Eri, BV Eri, CT Eri, SZ Hor, AD Phe, TYPup, HI Pup, and TZ Pyx. All are double-lined binaries, and all exceptthe last one are contact binaries. The orbital data must be consideredpreliminary because of the relatively small number of observations(6-12), a circumstance that is partly compensated by the good definitionof the broadening functions used for the radial velocity determinations.Based on data obtained at the European Southern Observatory.
| Amateur Variable Star Observing in Japan
Activities and publications of various astronomical groups in Japan aredescribed.
| CU Eridani — A suspected variable
Photometric observations of CU Eridani, recently classified asnon-variable, indicate it to be a variable star. The observations arenot sufficient to indicate the type of variability but CU Eri does notappear to be an eclipsing star.
| 58th Name-List of Variable Stars
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Observation and Astrometry data
| Constellation: | Ηριδανός |
| Right ascension: | 02h46m58.16s |
| Declination: | -13°20'28.4" |
| Apparent magnitude: | 8.743 |
| Distance: | 156.006 parsecs |
| Proper motion RA: | 19 |
| Proper motion Dec: | 16.7 |
| B-T magnitude: | 9.871 |
| V-T magnitude: | 8.837 |
Catalogs and designations:
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