All names: SDSS J225846.88-005450.8, SDSS J225846.89-005450.8, Gaia DR3 2651505207011569152, SDSS J225846.93-005450.7, Gaia EDR3 2651505207011569152, WDJ225846.86-005450.83, Gaia DR2 2651505207011569152, SDSS J225847.03-005450.6, J2258-0054
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 58 47.11 (0.3) | 22 58 47.11 | 22 58 46.86 (0.3) | 22 58 47.11 | ||||||
| Declination | -00 54 50.51 (0.3) | -00 54 50.52 | -00 54 50.84 (0.3) | -00 54 50.52 | ||||||
| Spectral type | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 5141.0 (40) | 4813.0 (40) | |||||||
| log(g) | [cgs] | 8.03 (0.05) | 7.92 (0.06) | |||||||
| Mass | [M☉] | 0.597 (0.04) | 0.523 (0.04) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 5.6500 | ||||||||
| 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] | 11.19 (0.5) | 11.93 (0.5) | 11.93 (0.5) | 11.19 (0.5) | 11.93 (0.5) | ||||
| Distance | [pc] | 89.35 (4) | 83.82 (4) | 83.83 (4) | 89.35 (4) | 83.83 (4) | ||||
| Composition | H | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 235.0286057 (0.4) | 234.4460706 (0.7) | 235.029 (0.4) | 234.4460706 | |||||
| Proper motion (declination) | [mas/yr] | 20.85821174 (0.4) | 20.56128159 (0.6) | 20.858 (0.4) | 20.56128159 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 18.34 (0.03) | |||||||||
| H magnitude | 18.14 (0.06) | |||||||||
| K magnitude | 18.07 (0.09) | |||||||||
| u magnitude | 22.15 (0.3) | 21.72 (0.1) | 21.51 (0.1) | |||||||
| g magnitude | 20.17 (0.02) | 20.19 (0.02) | ||||||||
| r magnitude | 19.47 (0.01) | 19.47 (0.01) | ||||||||
| i magnitude | 19.19 (0.01) | 19.21 (0.02) | ||||||||
| z magnitude | 19.13 (0.05) | 19.08 (0.06) | ||||||||
| G magnitude | 19.51 (0.07) | 19.54 | 19.51 (0.005) | 19.54 | ||||||
| BP magnitude | 19.94 (0.07) | 19.99 | 19.99 | |||||||
| RP magnitude | 18.80 (0.05) | 18.85 | 18.85 | |||||||
| Pan g magnitude | 20.06 (0.01) | 20.06 (0.01) | ||||||||
| Pan r magnitude | 19.48 (0.005) | 19.48 (0.005) | ||||||||
| Pan i magnitude | 19.22 (0.006) | 19.22 (0.006) | ||||||||
| Pan z magnitude | 19.14 (0.02) | 19.14 (0.01) | ||||||||
| Pan y magnitude | 19.25 (0.04) | 19.25 (0.04) | ||||||||
| E(B-V) | 0.010 | |||||||||
* 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.