All names: TIC 384992041, FBFTA Per II 54, TYC 3315-1807-1, [VKN2011] J032139.8+472717, GALEX J032139.8+472716, USNO-B1.0 1374-00092676, GALEXJ032139.63+472718.83, GALEX J032139.6+472718, GALEX J032139.8+472718, UCAC3 275-49285, GSC2.3 NCI0000926, Gaia DR2 435211617384833536, Gaia DR3 435211617384833536, UCAC2 47605636, Cl Melotte 20 488, GSC2 N3331020926, GSC 03315-01807, 2MASS J03213962+4727187
| 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.