All names: Gaia EDR3 2611722922108815872, UCAC4 420-148227, TIC 36726784, WD 2253-062, 2MASS J22554741-0600503, WDJ225547.43-060050.38, 2253-062, EGGR 230, Gaia DR2 2611722922108815872, WD 2253-06, GD 243, Gaia DR3 2611722922108815872, PB 7355, GALEX J225547.3-060050, GCRV 21699
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Leggett et al. 2018 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Voss et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 55 47.51 (0.04) | 22 55 47.51 (0.05) | 22 55 47.51 | 22 55 47.43 (0.04) | 22 55 47.51 | 22 55 47.81 | ||||||
| Declination | -06 00 50.66 (0.04) | -06 00 50.65 (0.05) | -06 00 50.66 | -06 00 50.39 (0.04) | -06 00 50.65 | -06 00 52.20 | ||||||
| Spectral type | DBA3.0 | DBA | DB | DBA4 | DB4 | |||||||
| Effective temperature | [K] | 16839.0 (973) | 17190.0 (437) | 17380.0 | 17019.0 (331) | |||||||
| log(g) | [cgs] | 7.92 (0.06) | 8.07 (0.1) | 7.98 | 7.94 (0.02) | |||||||
| Mass | [M☉] | 0.547 (0.05) | 0.64 (0.06) | 0.581 | 0.56 (0.02) | |||||||
| log(Luminosity) | [L☉] | -1.93 | ||||||||||
| Cooling age | [Gyr] | 0.1160 (0.03) | 0.1514 | 1.2560 | ||||||||
| log(H/He) | -4.33 (0.1) | -4.24 | ||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(N/He) | ||||||||||||
| log(O/He) | ||||||||||||
| log(Na/He) | ||||||||||||
| log(Mg/He) | ||||||||||||
| log(Al/He) | ||||||||||||
| log(Si/He) | ||||||||||||
| log(P/He) | ||||||||||||
| log(S/He) | ||||||||||||
| log(Cl/He) | ||||||||||||
| log(Sc/He) | ||||||||||||
| log(Ti/He) | ||||||||||||
| log(V/He) | ||||||||||||
| log(Cr/He) | ||||||||||||
| log(Mn/He) | ||||||||||||
| log(Fe/He) | ||||||||||||
| log(Co/He) | ||||||||||||
| log(Ni/He) | ||||||||||||
| log(Cu/He) | ||||||||||||
| log(Zn/He) | ||||||||||||
| log(Ga/He) | ||||||||||||
| log(Ge/He) | ||||||||||||
| log(Sr/He) | ||||||||||||
| Parallax | [mas] | 14.75 (0.05) | 14.66 (0.4) | 14.75 (0.06) | 14.75 | 14.75 (0.05) | 14.75 (0.06) | |||||
| Distance | [pc] | 67.80 (0.2) | 68.21 (2) | 67.78 (0.3) | 63.00 | 67.80 | 67.80 (0.2) | 67.78 (0.3) | ||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 77.14918666 (0.05) | 77.15427747 (0.1) | 77.149 (0.05) | 77.15427747 | |||||||
| Proper motion (declination) | [mas/yr] | -17.14924643 (0.04) | -17.54426006 (0.1) | -17.149 (0.04) | -17.54426006 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.01 (0.03) | |||||||||||
| V magnitude | 15.06 | 15.01 (0.01) | ||||||||||
| R magnitude | 15.27 (0.1) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.48 (0.05) | |||||||||||
| H magnitude | 15.57 (0.1) | |||||||||||
| K magnitude | ||||||||||||
| u magnitude | 14.79 (0.004) | |||||||||||
| g magnitude | 14.88 (0.003) | |||||||||||
| r magnitude | 15.20 (0.003) | |||||||||||
| i magnitude | 15.46 (0.003) | |||||||||||
| z magnitude | 15.69 (0.006) | |||||||||||
| G magnitude | 15.04 (0.003) | 15.05 | 15.04 | 15.04 (0.003) | 15.05 | |||||||
| BP magnitude | 14.96 (0.003) | 14.94 | 14.94 | |||||||||
| RP magnitude | 15.17 (0.003) | 15.16 | 15.16 | |||||||||
| Pan g magnitude | 14.92 (0.003) | |||||||||||
| Pan r magnitude | 15.21 (0.002) | |||||||||||
| Pan i magnitude | 15.50 (0.003) | |||||||||||
| Pan z magnitude | 15.73 (0.001) | |||||||||||
| Pan y magnitude | 15.91 (0.01) | |||||||||||
| E(B-V) | 0.002 | |||||||||||
* 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.