All names: 2MASS J03285526+5035297, ATO J052.2302+50.5915, Lan 30, UVEX J032855.25+503529.8, UVEXJ032855.25+503529.8, Gaia DR3 441838202167403776, Gaia DR2 441838202167403776, TIC 458785169
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 03 28 55.25 | 03 28 55.26 (0.02) | ||
| Declination | 50 35 29.80 | 50 35 29.67 (0.02) | ||
| Spectral type | sdB+dM | sdB | ||
| Effective temperature | [K] | 28500.0 | ||
| log(g) | [cgs] | 5.50 | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.66 (0.03) | 1.71 (0.02) | |
| Distance | [pc] | 602.88 (12) | 584.01 (8) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.31 (0.06) | -5.308 (0.02) | |
| Proper motion (declination) | [mas/yr] | -4.6 (0.06) | -4.747 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.30 | |||
| V magnitude | 14.30 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.12 (0.04) | 14.12 (0.004) | ||
| H magnitude | 14.09 (0.04) | 13.91 (0.004) | ||
| K magnitude | 14.26 (0.06) | 14.02 (0.005) | ||
| u magnitude | ||||
| g magnitude | 14.20 (0.001) | |||
| r magnitude | 14.07 (0.001) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.18 (0.004) | 14.15 (0.004) | ||
| BP magnitude | 14.17 (0.01) | |||
| RP magnitude | 14.07 (0.01) | |||
| Pan g magnitude | 14.14 (0.01) | |||
| Pan r magnitude | 14.31 (0.02) | |||
| Pan i magnitude | 14.46 (0.01) | |||
| Pan z magnitude | 14.63 (0.004) | |||
| Pan y magnitude | 14.62 (0.03) | |||
| E(B-V) | 0.358 | |||
* 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.