All names: SDSS J125129.17+062152.1, SDSS J125129.17+062152.13, Gaia EDR3 3709293602624709760, Gaia DR3 3709293602624709760, TIC 390687074, GALEX J125129.1+062152, PG 1248+066, PG1248+066, PB 4288, 2MASS J12512917+0621522, Gaia DR2 3709293602624709760
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 51 29.17 (0.05) | 12 51 29.17 | 12 51 29.18 | 12 51 29.17 (0.06) | 12 51 29.17 (0.05) | ||||
| Declination | 06 21 52.03 (0.03) | 06 21 52.11 | 06 21 52.32 | 06 21 52.03 (0.05) | 06 21 52.11 (0.03) | ||||
| Spectral type | He-sdO | He-sdO | sdOHe | ||||||
| Effective temperature | [K] | 49412.0 (48) | |||||||
| log(g) | [cgs] | 7.00 (0.05) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.28 (0.06) | 0.31 (0.08) | 0.31 (0.08) | 0.28 (0.06) | ||||
| Distance | [pc] | 3554.33 (742) | 3222.69 (789) | 3222.23 (789) | 3554.92 (742) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.909049402 (0.08) | -6.817 (0.2) | -6.817086882 (0.2) | -6.909 (0.08) | ||||
| Proper motion (declination) | [mas/yr] | -5.421147945 (0.06) | -5.926 (0.1) | -5.925627278 (0.1) | -5.421 (0.07) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.94 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.66 (0.1) | 16.66 (0.1) | |||||||
| H magnitude | 17.49 | 16.97 (0.04) | |||||||
| K magnitude | 16.86 | 17.20 (0.09) | |||||||
| u magnitude | 15.40 (0.005) | 15.40 (0.005) | 15.42 (0.02) | 15.40 (0.005) | |||||
| g magnitude | 15.84 (0.004) | 15.85 (0.004) | 15.89 (0.03) | 15.85 (0.004) | |||||
| r magnitude | 16.36 (0.005) | 16.36 (0.005) | 16.37 (0.01) | 16.36 (0.005) | |||||
| i magnitude | 16.73 (0.005) | 16.73 (0.005) | 16.75 (0.01) | 16.73 (0.005) | |||||
| z magnitude | 17.07 (0.01) | 17.07 (0.01) | 17.08 (0.02) | 17.08 (0.01) | |||||
| G magnitude | 16.10 (0.003) | 16.13 (0.001) | 16.13 | 16.10 (0.003) | |||||
| BP magnitude | 15.94 (0.003) | 15.87 (0.005) | 15.87 | ||||||
| RP magnitude | 16.42 (0.004) | 16.41 (0.004) | 16.41 | ||||||
| Pan g magnitude | 15.93 (0.003) | 15.93 (0.003) | |||||||
| Pan r magnitude | 16.38 (0.003) | 16.38 (0.003) | |||||||
| Pan i magnitude | 16.75 (0.003) | 16.75 (0.003) | |||||||
| Pan z magnitude | 17.04 (0.007) | 17.04 (0.007) | |||||||
| Pan y magnitude | 17.22 (0.006) | 17.22 (0.006) | |||||||
| E(B-V) | 0.021 | ||||||||
* 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.