All names: Gaia DR2 2264228628701507200, WD 1923+715, Gaia EDR3 2264228628702690048, WDS J19228+7137B, J1922+7137, WDJ192248.60+713741.87, LP 45-217, LSPM J1922+7137E, Gaia DR3 2264228628702690048, GALEX J192248.7+713742, ** LDS 1904B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 22 48.83 (0.06) | 19 22 48.83 (0.1) | 19 22 48.83 | 19 22 48.60 (0.06) | 19 22 48.83 | 19 22 44.38 | ||||||
| Declination | 71 37 44.57 (0.07) | 71 37 44.48 (0.2) | 71 37 44.57 | 71 37 41.86 (0.07) | 71 37 44.48 | 71 36 55.08 | ||||||
| Spectral type | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 7542.0 (28) | 7542.0 | 7288.0 | 8218.0 (95) | |||||||
| log(g) | [cgs] | 7.86 (0.02) | 7.86 | 7.75 | 8.04 (0.02) | |||||||
| Mass | [M☉] | 0.514 (0.01) | 0.513 | 0.439 | 0.619 (0.02) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.0800 | 1.0300 | 1.0300 | ||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 13.91 (0.07) | 13.97 (0.2) | 13.97 (0.2) | 13.91 | 13.91 (0.07) | 13.97 (0.2) | |||||
| Distance | [pc] | 71.90 (0.3) | 71.58 (1) | 71.60 (1) | 71.90 | 71.90 (0.3) | 71.60 (1) | |||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 70.64268075 (0.08) | 70.204 (0.2) | 70.643 (0.08) | 70.20391343 | |||||||
| Proper motion (declination) | [mas/yr] | 169.2381239 (0.08) | 168.776 (0.3) | 169.238 (0.08) | 168.7759247 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | yes | |||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 17.22 (0.007) | 17.24 | 17.22 | 17.22 (0.003) | 17.24 | |||||||
| BP magnitude | 17.35 (0.007) | 17.36 | 17.36 | |||||||||
| RP magnitude | 16.94 (0.01) | 16.90 | 16.90 | |||||||||
| Pan g magnitude | 17.36 (0.003) | 17.36 (0.003) | ||||||||||
| Pan r magnitude | 17.29 (0.003) | 17.29 (0.003) | ||||||||||
| Pan i magnitude | 17.30 (0.004) | 17.30 (0.004) | ||||||||||
| Pan z magnitude | 17.39 (0.01) | 17.39 (0.01) | ||||||||||
| Pan y magnitude | 17.35 (0.004) | 17.35 (0.003) | ||||||||||
| E(B-V) | 0.007 | |||||||||||
* 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.