All names: GALEX J222827.7+175404, J2228+1754, Gaia EDR3 2737918849495239936, UCAC4 540-150053, TIC 51705155, SDSS J222827.80+175404.6, SDSS J222827.80+175404.7, Gaia DR2 2737918849495239936, WISEA J222827.81+175404.3, WISE J222827.81+175404.2, 2MASS J22282775+1754055, Gaia DR3 2737918849495239936, WDJ222827.76+175405.09
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 28 27.83 (0.05) | 22 28 27.83 | 22 28 27.83 | 22 28 27.76 (0.05) | 22 28 27.83 | |||||
| Declination | 17 54 04.39 (0.05) | 17 54 04.41 | 17 54 04.39 | 17 54 05.09 (0.05) | 17 54 04.41 | |||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 14134.0 (169) | 14118.0 (168) | 14677.0 (224) | ||||||
| log(g) | [cgs] | 7.94 (0.01) | 7.97 (0.01) | 7.99 (0.01) | ||||||
| Mass | [M☉] | 0.578 (0.009) | 0.595 (0.01) | 0.603 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| 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] | 10.74 (0.05) | 10.97 (0.1) | 10.74 | 10.74 (0.05) | 10.97 (0.1) | ||||
| Distance | [pc] | 93.13 (0.4) | 91.14 (0.8) | 93.13 | 93.13 (0.4) | 91.14 (0.8) | ||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 60.39554668 (0.06) | 60.22741753 (0.2) | 60.396 (0.06) | 60.22741753 | |||||
| Proper motion (declination) | [mas/yr] | -43.55755376 (0.05) | -43.71347726 (0.1) | -43.558 (0.06) | -43.71347726 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.18 (0.04) | |||||||||
| V magnitude | 16.20 (0.01) | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.78 (0.1) | |||||||||
| H magnitude | 16.61 (0.3) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 16.40 (0.007) | 16.40 (0.007) | ||||||||
| g magnitude | 16.05 (0.004) | 16.05 (0.004) | ||||||||
| r magnitude | 16.32 (0.004) | 16.32 (0.004) | ||||||||
| i magnitude | 16.56 (0.005) | 16.56 (0.005) | ||||||||
| z magnitude | 16.82 (0.01) | 16.82 (0.01) | ||||||||
| G magnitude | 16.18 (0.004) | 16.21 | 16.18 | 16.18 (0.003) | 16.21 | |||||
| BP magnitude | 16.16 (0.004) | 16.16 | 16.16 | |||||||
| RP magnitude | 16.28 (0.005) | 16.28 | 16.28 | |||||||
| Pan g magnitude | 16.07 (0.006) | |||||||||
| Pan r magnitude | 16.32 (0.003) | |||||||||
| Pan i magnitude | 16.58 (0.004) | |||||||||
| Pan z magnitude | 16.82 (0.007) | |||||||||
| Pan y magnitude | 16.96 (0.007) | |||||||||
| E(B-V) | 0.012 | |||||||||
* 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.