All names: EGGR 431, PG 0939+072, GR 431, SDSS J094159.31+065717.2, TIC 469037921, GJ 2074, LAMOST J094159.32+065717.1, 2MASS J09415931+0657171, WD 0939+071, WD 0939+07, 1SWASP J094159.32+065717.1, 0939+071, Gaia EDR3 3854123919934433152, Gaia DR2 3854123919934433152, Gaia DR3 3854123919934433152, uvby98 680093921
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Leggett et al. 2018 | Gaia DR2 | Stilism | Giammichele et al. 2012 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 41 59.32 (0.03) | 09 41 59.32 (0.05) | 09 41 59.32 (0.03) | 09 41 59.47 | |||||
| Declination | 06 57 17.19 (0.02) | 06 57 17.19 (0.04) | 06 57 17.18 (0.02) | 06 57 17.28 | |||||
| Spectral type | NWD | dF | DA7 | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.50 (0.03) | 0.40 (0.6) | 0.61 (0.05) | 0.50 (0.03) | ||||
| Distance | [pc] | 1991.72 (131) | 2500.00 (3438) | 1643.39 (132) | 1991.64 (131) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.731766172 (0.04) | -1.557 (0.07) | -1.732 (0.04) | |||||
| Proper motion (declination) | [mas/yr] | 0.686637924 (0.03) | 0.593 (0.08) | 0.687 (0.03) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.21 | ||||||||
| V magnitude | 14.91 | 14.90 | |||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 13.99 (0.03) | ||||||||
| H magnitude | 13.68 (0.04) | ||||||||
| K magnitude | 13.60 (0.03) | ||||||||
| u magnitude | 15.34 (0.01) | ||||||||
| g magnitude | 14.90 (0.03) | ||||||||
| r magnitude | 14.77 (0.01) | ||||||||
| i magnitude | 14.72 (0.01) | ||||||||
| z magnitude | 14.73 (0.02) | ||||||||
| G magnitude | 14.72 (0.001) | 14.74 | 14.72 (0.003) | ||||||
| BP magnitude | 14.91 (0.001) | 14.91 | |||||||
| RP magnitude | 14.38 (0.001) | 14.40 | |||||||
| Pan g magnitude | 14.91 (0.0007) | ||||||||
| Pan r magnitude | 14.78 (0.003) | ||||||||
| Pan i magnitude | 14.75 (0.005) | ||||||||
| Pan z magnitude | 14.76 (0.001) | ||||||||
| Pan y magnitude | 14.75 (0.003) | ||||||||
| E(B-V) | 0.026 | ||||||||
* 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.