All names: WD 2251+000, SDSS J225404.27+001824.1, Gaia DR3 2651904810768865408, Gaia EDR3 2651904810768865408, GALEX J225404.2+001823, WIRED J225404.28+001824.1, 2MASS J22540426+0018234, Gaia DR2 2651904810768865408, TIC 311463834, SDSS J225404.28+001824.2, SDSS J225404.28+001824.1, SDSS J225404.20+001824.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 54 04.27 (0.4) | 22 54 04.28 | 22 54 04.27 (0.5) | 22 54 04.28 (0.4) | 22 54 04.28 | 22 54 03.72 | 22 54 04.28 | |||
| Declination | 00 18 23.93 (0.4) | 00 18 24.24 | 00 18 23.94 (0.5) | 00 18 24.22 (0.4) | 00 18 24.16 | 00 18 23.40 | 00 18 24.17 | |||
| Spectral type | DA+M | DA+M | DA | DA+M | ||||||
| Effective temperature | [K] | 6301.0 (4) | 6301.0 (4) | |||||||
| log(g) | [cgs] | 7.69 (0.6) | 9.98 (0.04) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.82 (0.5) | 2.21 (0.6) | 1.82 (0.5) | ||||||
| Distance | [pc] | 550.73 (144) | 452.22 (131) | 550.72 (144) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.416809709 (0.5) | -8.011423562 (1) | -7.417 (0.5) | 6.6 | |||||
| Proper motion (declination) | [mas/yr] | -17.76665133 (0.5) | -17.90055682 (0.9) | -17.767 (0.5) | -1.7 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.77 (0.02) | |||||||||
| H magnitude | 16.17 (0.02) | |||||||||
| K magnitude | 15.83 (0.03) | |||||||||
| u magnitude | 21.52 (0.1) | 21.51 (0.1) | 21.50 (0.1) | 21.51 (0.1) | ||||||
| g magnitude | 20.77 (0.03) | 20.69 (0.03) | 20.71 (0.03) | 20.72 (0.03) | ||||||
| r magnitude | 20.24 (0.03) | 20.28 (0.02) | 20.29 (0.02) | 20.28 (0.02) | ||||||
| i magnitude | 19.18 (0.02) | 19.26 (0.02) | 19.27 (0.02) | 19.26 (0.02) | ||||||
| z magnitude | 18.41 (0.03) | 18.38 (0.03) | 18.40 (0.03) | 18.38 (0.03) | ||||||
| G magnitude | 19.75 (0.08) | 19.79 | 19.75 (0.006) | |||||||
| BP magnitude | 20.55 (0.08) | 20.49 | ||||||||
| RP magnitude | 18.69 (0.03) | 18.74 | ||||||||
| Pan g magnitude | 20.70 (0.02) | |||||||||
| Pan r magnitude | 20.27 (0.02) | |||||||||
| Pan i magnitude | 19.24 (0.008) | |||||||||
| Pan z magnitude | 18.55 (0.01) | |||||||||
| Pan y magnitude | 18.16 (0.01) | |||||||||
| E(B-V) | 0.053 | |||||||||
* 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.