All names: Gaia DR2 807172995146946816, Gaia EDR3 807172995146946816, SDSS J100406.64+423151.4, SDSS J100406.63+423151.5, J1004+4231, GALEX J100406.6+423154, WD 1001+427, SDSS J100406.64+423151.3, SDSS J100406.63+423151.4, Gaia DR3 807172995146946816
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Dufour et al. 2007 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 04 06.56 (0.3) | 10 04 06.64 | 10 04 06.65 | 10 04 06.56 (0.4) | 10 04 06.65 (0.3) | 10 04 06.64 | 10 04 06.91 | 10 04 06.64 | |||||
| Declination | 42 31 51.47 (0.2) | 42 31 51.49 | 42 31 51.47 | 42 31 51.47 (0.4) | 42 31 51.48 (0.2) | 42 31 51.39 | 42 31 44.76 | 42 31 51.39 | |||||
| Spectral type | DZ | DZ | DZ+M | DZ | DZ | DZM | DZ | ||||||
| Effective temperature | [K] | 8152.0 (356) | 8270.0 (340) | 10137.0 (73) | 10135.0 (69) | ||||||||
| log(g) | [cgs] | 8.33 | 8.00 | 7.81 (0.6) | 8.33 (1) | ||||||||
| Mass | [M☉] | 0.7875 | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.9100 | |||||||||||
| log(H/He) | <-4.3639 | <-4.0 | |||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | -10.0145 (0.1) | -9.98 (0.1) | |||||||||||
| 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] | 4.64 (0.4) | 5.27 | 5.27 (0.6) | 4.64 (0.4) | ||||||||
| Distance | [pc] | 215.47 (17) | 189.89 (22) | 189.89 (22) | 242.00 | 215.48 (17) | |||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -65.67759656 (0.3) | -65.64873372 (0.7) | -65.678 (0.3) | -65.8 | ||||||||
| Proper motion (declination) | [mas/yr] | -0.725138281 (0.3) | -0.275826803 (0.8) | -0.725 (0.3) | 0.2 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.17 (0.05) | 20.17 (0.05) | 20.18 (0.06) | 20.17 | 20.17 (0.06) | ||||||||
| g magnitude | 19.85 (0.01) | 19.85 (0.01) | 19.87 (0.03) | 19.86 | 19.86 (0.03) | ||||||||
| r magnitude | 19.86 (0.02) | 19.86 (0.02) | 19.87 (0.03) | 19.87 | 19.88 (0.03) | ||||||||
| i magnitude | 19.93 (0.04) | 19.93 (0.04) | 19.96 (0.04) | 19.95 | 19.95 (0.04) | ||||||||
| z magnitude | 20.05 (0.1) | 20.05 (0.1) | 20.10 (0.1) | 20.09 | 20.08 (0.1) | ||||||||
| G magnitude | 19.83 (0.06) | 19.90 | 19.83 (0.005) | ||||||||||
| BP magnitude | 19.90 (0.06) | 19.95 | |||||||||||
| RP magnitude | 19.74 (0.07) | 19.72 | |||||||||||
| Pan g magnitude | 19.88 (0.02) | ||||||||||||
| Pan r magnitude | 19.90 (0.02) | ||||||||||||
| Pan i magnitude | 19.98 (0.01) | ||||||||||||
| Pan z magnitude | 20.10 (0.03) | ||||||||||||
| Pan y magnitude | 20.39 (0.2) | ||||||||||||
| 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.