All names: TIC 138354006, 2MASS J05451644+8220015, SDSSJ054516.42+822002.0, Gaia DR2 557308909015358464, GALEX J054516.4+822001, FBS B 1043, Gaia DR3 557308909015358464, SDSS J054516.47+822001.8, FBS 0534+823
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 05 45 16.42 | 05 45 16.48 (0.3) | |
| Declination | 82 20 02.00 | 82 20 01.75 (0.3) | |
| Spectral type | sdOB | sdOB | |
| Effective temperature | [K] | 34287.0 (1042) | |
| log(g) | [cgs] | 5.11 (0.2) | |
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | -0.62 (0.5) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 1.225 (0.7) | 0.94 (0.4) |
| Proper motion (declination) | [mas/yr] | 4.284 (0.9) | 2.605 (0.4) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 15.32 (0.06) | 15.32 (0.06) | |
| H magnitude | 15.25 (0.1) | 15.25 (0.1) | |
| K magnitude | 15.17 (0.2) | 15.17 (0.2) | |
| u magnitude | 14.77 (0.004) | 14.77 (0.004) | |
| g magnitude | 14.95 (0.003) | 14.95 (0.003) | |
| r magnitude | 15.29 (0.003) | 15.29 (0.003) | |
| i magnitude | 15.51 (0.003) | 15.51 (0.003) | |
| z magnitude | 15.70 (0.006) | 15.69 (0.006) | |
| G magnitude | 15.16 (0.002) | 15.23 (0.005) | |
| BP magnitude | 14.99 (0.006) | ||
| RP magnitude | 15.21 (0.002) | ||
| Pan g magnitude | 15.05 (0.003) | ||
| Pan r magnitude | 15.31 (0.002) | ||
| Pan i magnitude | 15.55 (0.004) | ||
| Pan z magnitude | 15.73 (0.003) | ||
| Pan y magnitude | 15.81 (0.006) | ||
| E(B-V) | |||
* 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.