All names: Gaia EDR3 2835808683249711744, Gaia DR3 2835808683249711744, SDSS J225901.16+215843.9, GALEX J225901.1+215841, Gaia DR2 2835808683249711744
| Parameter | Unit | Gaia EDR3 | Blouin & Dufour 2019 | Stilism | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 22 59 01.16 (0.4) | 22 59 01.16 (0.4) | ||||
| Declination | 21 58 43.83 (0.4) | 21 58 43.96 (0.4) | ||||
| Spectral type | DQpec | DQ | DQ | |||
| Effective temperature | [K] | 6270.0 (49) | ||||
| log(g) | [cgs] | 8.27 (0.2) | ||||
| Mass | [M☉] | 0.744 (0.1) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | -5.225 (0.04) | |||||
| 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] | 5.61 (0.5) | 6.80 (0.8) | 5.61 (0.5) | ||
| Distance | [pc] | 178.24 (17) | 146.96 (18) | 178.24 (17) | ||
| Composition | He | |||||
| Proper motion (right ascension) | [mas/yr] | 0.628308558 (0.7) | 0.628 (0.7) | |||
| Proper motion (declination) | [mas/yr] | -8.096446106 (0.5) | -8.096 (0.5) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 20.65 (0.1) | 20.65 (0.1) | ||||
| g magnitude | 20.75 (0.04) | 20.75 (0.04) | ||||
| r magnitude | 20.13 (0.03) | 20.13 (0.03) | ||||
| i magnitude | 19.96 (0.04) | 19.96 (0.04) | ||||
| z magnitude | 20.35 (0.2) | 20.35 (0.2) | ||||
| G magnitude | 20.18 (0.09) | 20.18 (0.006) | ||||
| BP magnitude | 20.37 (0.09) | |||||
| RP magnitude | 19.59 (0.08) | |||||
| Pan g magnitude | 20.72 (0.03) | |||||
| Pan r magnitude | 20.08 (0.03) | |||||
| Pan i magnitude | 19.94 (0.02) | |||||
| Pan z magnitude | 20.07 (0.05) | |||||
| Pan y magnitude | 19.91 (0.2) | |||||
| E(B-V) | 0.020 | |||||
* 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.