All names: UCAC4 205-183950, CNS5 5190, 2MASS J21010521-4906241, PM J21010-4906, WDJ210105.20-490624.27, Gaia EDR3 6478328218869704192, HIDDEN NAME WD 2057-493, WT 765, WDS J21011-4907B, PM I21010-4906, Gaia DR2 6478328218869704192, Gaia DR3 6478328218869704192, ** SKF 765B, GALEX J210105.0-490623, TIC 79020922, WISEA J210104.88-490626.5, LEP2101-4906B
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Subasavage et al. 2022 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 01 04.73 (0.02) | 21 01 04.75 (0.03) | 21 01 05.21 | 21 01 04.73 | 21 01 05.20 (0.02) | 21 01 04.75 | ||||
| Declination | -49 06 27.89 (0.02) | -49 06 27.78 (0.03) | -49 06 02.02 | -49 06 27.89 | -49 06 24.27 (0.02) | -49 06 27.78 | ||||
| Spectral type | DA | DA | DA | DA: | DA | |||||
| Effective temperature | [K] | 5118.0 (23) | 5293.0 (60) | 5320.0 (60) | 5141.0 (12) | |||||
| log(g) | [cgs] | 7.92 (0.02) | 8.06 (0.03) | 8.09 (0.03) | 7.93 (0.006) | |||||
| Mass | [M☉] | 0.534 (0.01) | 0.619 (0.02) | 0.64 (0.03) | 0.539 (0.005) | |||||
| log(Luminosity) | [L☉] | -3.99 (0.03) | ||||||||
| Cooling age | [Gyr] | 5.0300 (0.5) | ||||||||
| 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] | 74.95 (0.03) | 74.95 (0.03) | 74.89 (0.04) | 74.89 (0.04) | 75.42 (0.7) | 74.95 | 74.95 (0.03) | 74.89 (0.04) | |
| Distance | [pc] | 13.34 (0.006) | 13.34 (0.005) | 13.35 (0) | 13.35 (0.007) | 13.26 (0.1) | 13.34 | 13.34 (0.006) | 13.35 (0.007) | |
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -287.0160222 (0.03) | -286.9654757 (0.05) | -287.016 (0.03) | -286.9654757 | |||||
| Proper motion (declination) | [mas/yr] | -226.3762754 (0.03) | -226.3584587 (0.05) | -226.376 (0.03) | -226.3584587 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.31 | 16.31 | 16.32 (0.02) | |||||||
| V magnitude | 15.48 | 15.48 | 15.37 (0.08) | |||||||
| R magnitude | 15.02 | 15.02 | 15.49 (0.1) | |||||||
| I magnitude | 14.56 | 14.56 | ||||||||
| J magnitude | 14.13 | 14.13 (0.03) | 14.13 (0.03) | |||||||
| H magnitude | 13.86 | 13.86 (0.04) | 13.86 (0.04) | |||||||
| K magnitude | 13.84 | 13.84 (0.05) | 13.84 (0.05) | |||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 15.26 (0.002) | 15.28 | 15.26 | 15.26 (0.003) | 15.28 | |||||
| BP magnitude | 15.70 (0.002) | 15.72 | 15.72 | |||||||
| RP magnitude | 14.66 (0.001) | 14.67 | 14.67 | |||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.001 | |||||||||
* 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.