All names: Gaia EDR3 3829348207813512064, 2QZ J100421.7-023757, Gaia DR3 3829348207813512064, GALEX J100421.7-023756, WDJ100421.77-023756.95, SDSS J100421.76-023756.9, Gaia DR2 3829348207813512064
| Parameter | Unit | Gaia EDR3 | Kilic et al. 2026b | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 10 04 21.73 (0.3) | 10 04 21.73 | 10 04 21.77 (0.3) | |||
| Declination | -02 37 57.05 (0.2) | -02 37 57.05 | -02 37 56.96 (0.2) | |||
| Spectral type | DZ | DZ | DZ | |||
| Effective temperature | [K] | 8509.0 (98) | 8443.0 (468) | |||
| log(g) | [cgs] | 7.92 (0.06) | 7.78 (0.1) | |||
| Mass | [M☉] | 0.528 (0.04) | 0.457 (0.08) | |||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | -5.0 | |||||
| log(C/He) | ||||||
| log(Ca/He) | -8.54 | |||||
| log(Ca/H) | ||||||
| log(Li/He) | ||||||
| log(Be/He) | ||||||
| log(B/He) | ||||||
| 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(K/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] | 5.38 (0.3) | 5.38 | 5.38 (0.3) | ||
| Distance | [pc] | 186.03 (1e+01) | 186.03 | 186.03 (1e+01) | ||
| Composition | He | |||||
| Proper motion (right ascension) | [mas/yr] | -41.413 (0.3) | -41.413 (0.3) | |||
| Proper motion (declination) | [mas/yr] | -5.587 (0.3) | -5.587 (0.3) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 19.00 (0.1) | |||||
| H magnitude | 19.10 (0.2) | |||||
| K magnitude | ||||||
| u magnitude | 19.28 (0.03) | |||||
| g magnitude | 18.91 (0.02) | |||||
| r magnitude | 18.95 (0.01) | |||||
| i magnitude | 19.13 (0.02) | |||||
| z magnitude | 19.33 (0.07) | |||||
| G magnitude | 18.88 (0.004) | 18.88 | 18.88 (0.004) | |||
| BP magnitude | 19.06 (0.05) | |||||
| RP magnitude | 18.78 (0.05) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| 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.