All names: WISE J095753.80+852940.1, EUVE J0957+85.4, 1RXS J095752.3+852935, Gaia DR2 1147853241336105344, EXO 0947.3+8545, [CWH99] J095754.1+852943, Gaia EDR3 1147853241336105344, 2RE J095748+852949, RE J0957+852, GALEX J095753.7+852941, 2RE J0957+852, 2EUVE J0957+85.4, Gaia DR3 1147853241336105344, 2MASS J09575474+8529411, [ZEH2003] RX J0957.8+8529 5, RE J0957+85, RE J095733+852947, WD 0947+857, RX J0957.8+8529, TIC 298411553, RBS 812, WISEA J095753.79+852940.1, UCAC4 878-003491
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 57 53.91 (0.04) | 09 57 53.93 (0.05) | 09 57 53.91 | 09 57 54.30 (0.04) | 09 57 32.78 | |||
| Declination | 85 29 40.44 (0.04) | 85 29 40.46 (0.05) | 85 29 40.44 | 85 29 40.88 (0.04) | 85 29 43.08 | |||
| Spectral type | DA | DA | DA1.0 | DA | ||||
| Effective temperature | [K] | 50890.0 (920) | 52912.0 (4008) | |||||
| log(g) | [cgs] | 8.23 (0.06) | 8.36 (0.03) | |||||
| Mass | [M☉] | 0.82 (0.03) | 0.89 (0.03) | |||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| 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] | 6.33 (0.04) | 6.34 (0.05) | 6.33 | 6.33 (0.04) | |||
| Distance | [pc] | 157.94 (1) | 157.69 (1) | 171.00 | 157.94 | 157.94 (1) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -28.19978325 (0.05) | -28.13318932 (0.1) | -28.2 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -27.15853781 (0.05) | -27.2744372 (0.08) | -27.159 (0.05) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.46 (0.08) | |||||||
| V magnitude | 15.72 (0.08) | |||||||
| R magnitude | 16.11 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.54 (0.1) | |||||||
| H magnitude | 16.15 (0.3) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | 15.55 (0.08) | |||||||
| r magnitude | 15.98 (0.1) | |||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.72 (0.003) | 15.74 | 15.72 | 15.72 (0.003) | ||||
| BP magnitude | 15.57 (0.003) | 15.50 | ||||||
| RP magnitude | 16.04 (0.003) | 16.04 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.010 | |||||||
* 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.