All names: Gaia DR2 3989188546766108928, Gaia EDR3 3989188546766108928, SDSS J104604.38+214018.5, GALEX J104604.4+214019, Gaia DR3 3989188546766108928, WIRED J104604.39+214018.6, SDSS J104604.39+214018.5, SDSS J104604.39+214018.6
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Bedard et al. 2020 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 46 04.39 (0.4) | 10 46 04.39 | 10 46 04.39 | 10 46 04.39 (0.4) | 10 46 04.39 | |||
| Declination | 21 40 18.65 (0.3) | 21 40 18.60 | 21 40 18.59 | 21 40 18.82 (0.3) | 21 40 18.60 | |||
| Spectral type | DA+M | DA+M | DA | DA+M | ||||
| Effective temperature | [K] | 41222.0 (890) | 40565.0 (1670) | 10487.0 (175) | ||||
| log(g) | [cgs] | 7.77 (0.1) | 7.61 (0.2) | 8.66 (0.4) | ||||
| Mass | [M☉] | 0.56 (0.04) | 0.5 (0.08) | |||||
| log(Luminosity) | [L☉] | -0.17 (0.08) | ||||||
| Cooling age | [Gyr] | 0.0034 (0.0003) | ||||||
| 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] | 1.58 (0.4) | 1.58 (0.4) | |||||
| Distance | [pc] | 633.04 (179) | 1067.00 (156) | 633.03 (179) | ||||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -3.608176732 (0.4) | -3.608 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | -10.38938117 (0.4) | -10.389 (0.4) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | WDMS | ||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 18.30 (0.02) | 18.33 | 18.30 (0.01) | 18.33 (0.03) | ||||
| g magnitude | 18.57 (0.008) | 18.63 | 18.57 (0.008) | 18.63 (0.02) | ||||
| r magnitude | 18.78 (0.01) | 18.98 | 18.78 (0.01) | 18.98 (0.03) | ||||
| i magnitude | 18.47 (0.01) | 18.71 | 18.47 (0.01) | 18.71 (0.02) | ||||
| z magnitude | 18.09 (0.02) | 18.24 | 18.09 (0.02) | 18.24 (0.03) | ||||
| G magnitude | 18.95 (0.02) | 18.95 (0.005) | ||||||
| BP magnitude | 18.68 (0.02) | |||||||
| RP magnitude | 18.30 (0.04) | |||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| 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.