All names: UCAC4 454-001107, HS 0048+0026, Gaia EDR3 2537182630815412736, PG0048+004, SDSS J005107.03+004232.4, FBS 0048+004, 2MASS J00510702+0042322, SDSS J005107.02+004232.5, Gaia DR3 2537182630815412736, GALEX J005107.0+004232, SDSS J005107.03+004232.44, uvby98 610160860, Balloon 94700002, SDSS J005107.01+004232.5, TIC 257430973, Gaia DR2 2537182630815412736, PG 0048+004, PHL 860
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Geier 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 51 07.04 (0.05) | 00 51 07.02 | 00 51 07.02 | 00 51 07.00 | 00 51 07.04 (0.07) | 00 51 07.02 (0.05) | 00 51 07.02 | |||||
| Declination | 00 42 32.38 (0.03) | 00 42 32.50 | 00 42 32.50 | 00 42 33.09 | 00 42 32.38 (0.05) | 00 42 32.51 (0.03) | 00 42 32.52 | |||||
| Spectral type | sdOB | sdO | sdO | sdOB | SDO | |||||||
| Effective temperature | [K] | 38500.0 (300) | 29270.0 | 34879.0 (1569) | 35543.0 (150) | |||||||
| log(g) | [cgs] | 5.83 (0.07) | 4.92 | 5.55 (0.3) | 5.63 (0.03) | |||||||
| Mass | [M☉] | 0.073 | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 0.57 (0.06) | 0.59 (0.08) | 0.59 (0.08) | 0.57 (0.06) | |||||||
| Distance | [pc] | 1764.02 (175) | 1698.37 (236) | 1698.34 (236) | 1763.98 (175) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.58762374 (0.07) | 12.283 (0.2) | 12.28269422 (0.2) | 12.588 (0.07) | 8.2 | ||||||
| Proper motion (declination) | [mas/yr] | -8.571938075 (0.06) | -8.482 (0.1) | -8.48228051 (0.1) | -8.572 (0.06) | -10.4 | ||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.70 (0.1) | |||||||||||
| V magnitude | 15.81 (0.1) | |||||||||||
| R magnitude | 16.16 (0.3) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.55 (0.1) | 16.63 (0.01) | ||||||||||
| H magnitude | 16.65 (0.3) | 16.73 (0.03) | ||||||||||
| K magnitude | 15.72 | 16.80 (0.05) | ||||||||||
| u magnitude | 15.23 (0.004) | 15.23 (0.004) | 15.23 (0.004) | 15.28 (0.01) | 15.23 (0.004) | 15.22 (0.03) | ||||||
| g magnitude | 15.59 (0.004) | 15.59 (0.004) | 15.59 (0.004) | 15.58 (0.02) | 15.59 (0.004) | 15.59 (0.03) | ||||||
| r magnitude | 16.10 (0.004) | 16.10 (0.004) | 16.10 (0.004) | 16.10 (0.02) | 16.10 (0.004) | 16.09 (0.02) | ||||||
| i magnitude | 16.45 (0.005) | 16.45 (0.005) | 16.45 (0.005) | 16.45 (0.02) | 16.45 (0.005) | 16.48 (0.02) | ||||||
| z magnitude | 16.77 (0.01) | 16.77 (0.01) | 16.77 (0.01) | 16.76 (0.02) | 16.77 (0.01) | 16.83 (0.02) | ||||||
| G magnitude | 15.85 (0.003) | 15.87 (0.001) | 15.87 | 15.85 (0.003) | ||||||||
| BP magnitude | 15.69 (0.003) | 15.62 (0.005) | 15.62 | |||||||||
| RP magnitude | 16.16 (0.004) | 16.16 (0.005) | 16.16 | |||||||||
| Pan g magnitude | 15.67 (0.002) | 15.67 (0.002) | ||||||||||
| Pan r magnitude | 16.12 (0.004) | 16.12 (0.004) | ||||||||||
| Pan i magnitude | 16.49 (0.004) | 16.49 (0.004) | ||||||||||
| Pan z magnitude | 16.78 (0.004) | 16.78 (0.004) | ||||||||||
| Pan y magnitude | 16.98 (0.004) | 16.98 (0.004) | ||||||||||
| E(B-V) | 0.025 | |||||||||||
* 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.