All names: Gaia DR3 2849938472818734720, SDSSJ000307.06+241211.6, Gaia DR2 2849938472818734720, SDSS J000307.06+241211.6, 2MASS J00030706+2412117, TIC 118004432, GALEX J000307.0+241212, SDSS J000307.05+241211.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 03 07.06 | 00 03 07.06 (0.04) | ||
| Declination | 24 12 11.60 | 24 12 11.61 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.57 (0.08) | 0.44 (0.06) | |
| Distance | [pc] | 1752.23 (251) | 2265.01 (322) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.662 (0.1) | 3.843 (0.06) | |
| Proper motion (declination) | [mas/yr] | 2.711 (0.07) | 2.689 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.63 (0.1) | 16.63 (0.1) | ||
| H magnitude | 16.09 | |||
| K magnitude | 17.11 | |||
| u magnitude | 16.15 (0.006) | 16.15 (0.006) | ||
| g magnitude | 16.16 (0.003) | 16.16 (0.003) | ||
| r magnitude | 16.55 (0.004) | 16.55 (0.004) | ||
| i magnitude | 16.80 (0.005) | 16.80 (0.005) | ||
| z magnitude | 17.06 (0.01) | 17.06 (0.01) | ||
| G magnitude | 16.38 (0.001) | 16.36 (0.003) | ||
| BP magnitude | 16.24 (0.007) | |||
| RP magnitude | 16.50 (0.004) | |||
| Pan g magnitude | 16.23 (0.004) | |||
| Pan r magnitude | 16.54 (0.003) | |||
| Pan i magnitude | 16.84 (0.003) | |||
| Pan z magnitude | 17.06 (0.005) | |||
| Pan y magnitude | 17.22 (0.007) | |||
| E(B-V) | 0.055 | |||
* 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.