UW Centauri
catalogues and names
catalogues and names | UW Cen |
data from Combined General Catalogue of Variable Stars (Vol. I-III) (Kholopov+ 1998)
position:
position (equinox 1950.0) | RA: 12h 40min 26sec | DEC: -54° 15' 12'' | ± 1 sec / ± 0.1 arcmin |
variability informations:
variability type | RCB | eruptive variable star |
magnitute at max. brightness | 9.1 | |
magnitute at min. brightness | <14.5 | |
photometric system | visual, photovisual or Johnson's V |
spectral information
spectral class | K |
references
to a study | Vol. I GCVS (see Kholopov et al. 1985-1988) |
to a chart/photograph | Vol. I GCVS (see Kholopov et al. 1985-1988) |
miscanellous
ID in the GCVS catalogue | 19/36 |
constellation | Centaurus |
notes on existence | The star is equivalent to '0190037 UX'. |
There are notes in published catalog. |
variability type description
variability type | description |
RCB | Variables of the R Coronae Borealis type. These are hydrogen-poor,carbon- and helium-rich, high-luminosity stars belonging to the spectral types Bpe-R, which are simultaneously eruptive and pulsating variables. They show slow nonperiodic fadings by 1-9 mag in V lasting from a month or more to several hundred days. These changes are superposed on cyclic pulsations with amplitudes up to several tenths of a magnitude and periods in the range 30-100 days. |