All names: GALEX J210446.9-361525, WISEA J210446.94-361525.2, 2MASS J21044692-3615251, Gaia DR3 6776891083744902784, 1RXS J210447.6-361508, WISE J210446.94-361525.1, Gaia EDR3 6776891083744902784, USNO-B1.0 0537-00798565, EC 21016-3627, TIC 115075496, MCT 2101-3627, Gaia DR2 6776891083744902784, WD 2101-364
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 21 04 46.95 (0.04) | 21 04 46.95 (0.05) | 21 04 46.93 (0.04) | 21 04 46.08 | |||
| Declination | -36 15 25.31 (0.03) | -36 15 25.31 (0.05) | -36 15 25.27 (0.03) | -36 15 19.44 | |||
| Spectral type | DA+dM: | DA+dM | DA | ||||
| Effective temperature | [K] | 44715.0 (1237) | |||||
| log(g) | [cgs] | 7.49 (0.1) | |||||
| Mass | [M☉] | 0.469 (0.04) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | 0.0008 | |||||
| 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] | 2.86 (0.06) | 2.96 (0.08) | 2.86 (0.06) | |||
| Distance | [pc] | 349.44 (7) | 349.00 | 338.02 (1e+01) | 349.44 (7) | ||
| Composition | H | ||||||
| Proper motion (right ascension) | [mas/yr] | 13.2090484 (0.05) | 12.97778372 (0.1) | 13.209 (0.05) | |||
| Proper motion (declination) | [mas/yr] | -2.812786262 (0.05) | -2.651354926 (0.1) | -2.813 (0.05) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 16.68 | ||||||
| V magnitude | 16.79 | ||||||
| R magnitude | 16.30 | ||||||
| I magnitude | |||||||
| J magnitude | 14.52 (0.03) | ||||||
| H magnitude | 13.91 (0.03) | ||||||
| K magnitude | 13.76 (0.04) | ||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 16.38 (0.003) | 16.39 | 16.38 (0.003) | ||||
| BP magnitude | 16.57 (0.003) | 16.50 | |||||
| RP magnitude | 15.88 (0.002) | 15.88 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.028 | ||||||
* 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.