All names: Gaia DR2 642683203773128448, GALEX J095729.6+242945, LAMOST J095729.66+242945.1, [V92] 8.0-072, PG 0954+247, Ton 468, SDSS J095729.54+242944.1, Gaia EDR3 642683203773128448, Gaia DR3 642683203773128448, TIC 450302965, PG0954+247, 2MASS J09572955+2429442, WD 0954+247
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 09 57 29.55 (0.04) | 09 57 29.55 | 09 57 29.55 (0.04) | 09 57 29.50 | |||
| Declination | 24 29 44.13 (0.04) | 24 29 44.66 | 24 29 44.21 (0.04) | 24 29 46.68 | |||
| Spectral type | sdO | sdOA | sdOA | ||||
| 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] | 0.03 (0.05) | -0.20 (0.09) | 0.03 (0.05) | |||
| Distance | [pc] | 33806.31 (59467) | 33783.78 (59350) | ||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 2.276617511 (0.05) | 2.268 (0.1) | 2.277 (0.05) | |||
| Proper motion (declination) | [mas/yr] | -4.85981227 (0.05) | -4.993 (0.1) | -4.86 (0.05) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | 15.70 | ||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 15.97 (0.08) | 15.97 (0.08) | |||||
| H magnitude | 16.14 (0.2) | 16.14 (0.2) | |||||
| K magnitude | 16.25 | ||||||
| u magnitude | 14.94 (0.004) | 14.95 (0.02) | |||||
| g magnitude | 15.26 (0.003) | 15.31 (0.02) | |||||
| r magnitude | 15.80 (0.004) | 15.82 (0.02) | |||||
| i magnitude | 16.14 (0.005) | 16.14 (0.02) | |||||
| z magnitude | 16.46 (0.008) | 16.48 (0.02) | |||||
| G magnitude | 15.54 (0.003) | 15.56 (0.001) | 15.54 (0.003) | ||||
| BP magnitude | 15.39 (0.003) | 15.33 (0.01) | |||||
| RP magnitude | 15.84 (0.003) | 15.84 (0.006) | |||||
| Pan g magnitude | 15.36 (0.002) | 15.36 (0.002) | |||||
| Pan r magnitude | 15.79 (0.002) | 15.79 (0.002) | |||||
| Pan i magnitude | 16.16 (0.002) | 16.16 (0.002) | |||||
| Pan z magnitude | 16.45 (0.007) | 16.45 (0.007) | |||||
| Pan y magnitude | 16.64 (0.009) | 16.64 (0.009) | |||||
| E(B-V) | 0.020 | ||||||
* 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.