All names: GSC 03315-01807, UCAC2 47605636, GALEX J032139.6+472718, GALEX J032139.8+472716, Gaia DR3 435211617384833536, 2MASS J03213962+4727187, UCAC3 275-49285, GSC2.3 NCI0000926, TYC 3315-1807-1, Gaia DR2 435211617384833536, GSC2 N3331020926, GALEXJ032139.63+472718.83, [VKN2011] J032139.8+472717, TIC 384992041, GALEX J032139.8+472718, Cl Melotte 20 488, FBFTA Per II 54, USNO-B1.0 1374-00092676
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 03 21 39.63 | 03 21 39.63 (0.03) | ||
| Declination | 47 27 18.83 | 47 27 18.80 (0.02) | ||
| Spectral type | sdB+dM | sdB | ||
| Effective temperature | [K] | 27990.0 (460) | ||
| log(g) | [cgs] | 5.34 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 3.76 (0.06) | 3.80 (0.03) | |
| Distance | [pc] | 265.77 (4) | 263.13 (2) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 58.796 (0.1) | 58.716 (0.04) | |
| Proper motion (declination) | [mas/yr] | -8.241 (0.09) | -8.208 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.54 (0.07) | |||
| V magnitude | 11.73 (0.1) | |||
| R magnitude | 11.83 (0.04) | |||
| I magnitude | 11.55 (0.1) | |||
| J magnitude | 11.81 (0.02) | 11.81 (0.02) | ||
| H magnitude | 11.86 (0.03) | 11.86 (0.03) | ||
| K magnitude | 11.89 (0.03) | 11.89 (0.03) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 11.57 (0.002) | 11.56 (0.003) | ||
| BP magnitude | 11.49 (0.008) | |||
| RP magnitude | 11.62 (0.01) | |||
| Pan g magnitude | 11.56 | |||
| Pan r magnitude | 11.82 | |||
| Pan i magnitude | 12.04 | |||
| Pan z magnitude | 12.22 | |||
| Pan y magnitude | 12.31 (0.02) | |||
| E(B-V) | 0.103 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.