All names: WISEA J094734.63+260136.3, Ton 451, 2MASS J09473469+2601380, J0947+2601, WD 0944+262, WISE J094734.63+260136.4, UCAC4 581-044514, Gaia EDR3 646514250177090304, WDJ094734.69+260137.66, SDSS J094734.67+260137.1, LP 370-55, Gaia DR2 646514250177090304, SDSS J094734.66+260137.1, Gaia DR3 646514250177090304, GALEX J094734.6+260137, TIC 239199188, USNO-B1.0 1160-00168808
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 47 34.60 (0.05) | 09 47 34.60 (0.09) | 09 47 34.60 | 09 47 34.69 (0.05) | 09 47 34.60 | 09 47 33.84 | ||||||||
| Declination | 26 01 35.76 (0.04) | 26 01 35.82 (0.08) | 26 01 35.76 | 26 01 37.65 (0.04) | 26 01 35.82 | 26 02 04.20 | ||||||||
| Spectral type | DA | DA | DA | DA | DA4.5 | DA | ||||||||
| Effective temperature | [K] | 10730.0 (59) | 10729.0 (60) | 10760.0 | 10984.0 | 11080.0 (189) | 10831.0 (77) | |||||||
| log(g) | [cgs] | 8.19 (0.008) | 8.20 (0.01) | 8.20 | 8.16 | 8.10 (0.07) | 8.21 (0.01) | |||||||
| Mass | [M☉] | 0.719 (0.007) | 0.725 (0.009) | 0.728 | 0.681 | 0.67 (0.04) | 0.73 (0.009) | |||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.6731 | 0.6193 | |||||||||||
| 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] | 15.65 (0.06) | 15.75 (0.1) | 15.65 | 15.65 (0.06) | 15.75 (0.1) | ||||||||
| Distance | [pc] | 63.89 (0.2) | 63.47 (0.5) | 52.00 | 63.89 | 63.89 (0.2) | 63.47 (0.5) | |||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -81.30015684 (0.06) | -81.0802887 (0.2) | -81.3 (0.06) | -81.0802887 | |||||||||
| Proper motion (declination) | [mas/yr] | -118.05204 (0.05) | -118.3274861 (0.1) | -118.052 (0.05) | -118.3274861 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | yes | |||||||||||||
| B magnitude | 16.69 (0.07) | |||||||||||||
| V magnitude | 16.48 (0.01) | |||||||||||||
| R magnitude | 15.70 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.19 (0.1) | |||||||||||||
| H magnitude | 15.88 (0.2) | |||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 16.64 (0.007) | 16.64 (0.007) | ||||||||||||
| g magnitude | 16.24 (0.004) | 16.24 (0.004) | ||||||||||||
| r magnitude | 16.34 (0.004) | 16.34 (0.004) | ||||||||||||
| i magnitude | 16.52 (0.005) | 16.52 (0.005) | ||||||||||||
| z magnitude | 16.73 (0.01) | 16.73 (0.01) | ||||||||||||
| G magnitude | 16.26 (0.003) | 16.29 | 16.26 | 16.26 (0.003) | 16.29 | |||||||||
| BP magnitude | 16.30 (0.003) | 16.30 | 16.30 | |||||||||||
| RP magnitude | 16.23 (0.004) | 16.24 | 16.24 | |||||||||||
| Pan g magnitude | 16.24 (0.005) | |||||||||||||
| Pan r magnitude | 16.36 (0.004) | |||||||||||||
| Pan i magnitude | 16.53 (0.002) | |||||||||||||
| Pan z magnitude | 16.73 (0.003) | |||||||||||||
| Pan y magnitude | 16.84 (0.006) | |||||||||||||
| E(B-V) | 0.003 | |||||||||||||
* 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.