All names: Gaia DR2 661386274519054464, GALEX J084330.8+201049, SDSS J084330.81+201049.1, Gaia DR3 661386274519054464, SDSS J084330.81+201049.0, SDSS J084330.81+201048.90, SDSS J084330.81+201048.9, EPIC 211995459, Gaia EDR3 661386274519054464, LB 6187
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 43 30.81 (0.2) | 08 43 30.81 | 08 43 30.81 (0.2) | 08 43 30.82 (0.2) | ||||||
| Declination | 20 10 48.87 (0.07) | 20 10 49.12 | 20 10 48.88 (0.1) | 20 10 49.27 (0.07) | ||||||
| Spectral type | DA | DAH: | DAH | DA | ||||||
| Effective temperature | [K] | 100362.0 (7635) | 59983.0 (8898) | |||||||
| log(g) | [cgs] | 7.87 (0.2) | 8.00 (0) | |||||||
| Mass | [M☉] | 0.73 (0.08) | ||||||||
| log(Luminosity) | [L☉] | 1.39 (0.2) | ||||||||
| Cooling age | [Gyr] | 0.0002 (0.0001) | ||||||||
| 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] | 1.44 (0.2) | 1.48 (0.3) | 1.44 (0.2) | ||||||
| Distance | [pc] | 695.54 (106) | 676.45 (131) | 695.56 (106) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.952103712 (0.2) | -4.381374494 (0.5) | -4.952 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -25.07537625 (0.2) | -25.17143196 (0.3) | -25.075 (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 | 17.87 (0.01) | 17.85 (0.02) | 17.86 (0.01) | |||||||
| g magnitude | 18.27 (0.007) | 18.30 (0.01) | 18.28 (0.007) | |||||||
| r magnitude | 18.75 (0.009) | 18.76 (0.02) | 18.75 (0.009) | |||||||
| i magnitude | 19.11 (0.01) | 19.10 (0.02) | 19.11 (0.01) | |||||||
| z magnitude | 19.46 (0.06) | 19.45 (0.05) | 19.46 (0.06) | |||||||
| G magnitude | 18.50 (0.01) | 18.54 | 18.50 (0.003) | |||||||
| BP magnitude | 18.39 (0.01) | 18.28 | ||||||||
| RP magnitude | 18.87 (0.04) | 18.76 | ||||||||
| Pan g magnitude | 18.30 (0.006) | |||||||||
| Pan r magnitude | 18.79 (0.007) | |||||||||
| Pan i magnitude | 19.14 (0.01) | |||||||||
| Pan z magnitude | 19.39 (0.02) | |||||||||
| Pan y magnitude | 19.74 (0.03) | |||||||||
| 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.