All names: USNO-B1.0 1011-00149586, LSPM J0747+1107, Gaia EDR3 3151407827963355136, WDJ074730.10+110734.70, WISEA J074730.13+110732.7, SDSS J074730.12+110733.7, J0747+1107, UCAC4 506-043550, WISE J074730.12+110733.0, 07475+1107, PM J07475+1107, TIC 453209059, 2MASS J07473009+1107350, SDSS J074730.12+110733.8, PSO J116.8757+11.1255, Gaia DR3 3151407827963355136, Gaia DR2 3151407827963355136
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 30.18 (0.07) | 07 47 30.18 (0.08) | 07 47 30.18 (0.08) | 07 47 30.18 | 07 47 30.10 (0.07) | 07 47 30.18 | |||||||||||
| Declination | 11 07 31.78 (0.05) | 11 07 31.88 (0.05) | 11 07 31.88 (0.05) | 11 07 31.78 | 11 07 34.70 (0.05) | 11 07 31.88 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 8054.0 (33) | 7817.0 (184) | 8083.0 (29) | 8054.0 (32) | 7914.1 (84) | 7980.0 (90) | 8009.0 | 7675.0 | 8060.0 (126) | 8348.0 (112) | ||||||
| log(g) | [cgs] | 8.89 (0.006) | 8.83 (0.04) | 8.89 (0.005) | 8.89 (0.006) | 8.86 (0.02) | 8.88 (0.02) | 8.88 | 8.80 | 8.82 (0.08) | 8.94 (0.02) | ||||||
| Mass | [M☉] | 1.144 (0.004) | 1.115 (0.02) | 1.146 (0.003) | 1.143 (0.004) | 1.14 (0.008) | 1.14 | 1.086 | 1.11 (0.05) | 1.167 (0.01) | |||||||
| log(Luminosity) | [L☉] | -3.75 | |||||||||||||||
| Cooling age | [Gyr] | 3.8300 | 3.4970 (0.06) | 3.4750 | 3.4650 | ||||||||||||
| 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] | 36.21 (0.07) | 36.21 (0.07) | 36.17 (0.08) | 36.17 (0.08) | 36.17 (0.09) | 36.17 (0.08) | 36.21 | 36.21 (0.07) | 36.17 (0.08) | |||||||
| Distance | [pc] | 27.62 (0.05) | 27.62 (0.05) | 27.65 (0.06) | 27.65 (0.06) | 27.65 (0.07) | 27.65 (0.06) | 29.30 (0.8) | 27.62 | 27.62 (0.05) | 27.65 (0.06) | ||||||
| Composition | H | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 74.63512701 (0.08) | 74.79366581 (0.2) | 74.635 (0.08) | 74.79366581 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -182.2440836 (0.06) | -182.2403166 (0.1) | -182.244 (0.06) | -182.2403166 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 17.12 (0.01) | ||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | 16.26 (0.5) | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.22 (0.01) | 16.10 (0.1) | 16.10 | 16.10 (0.1) | |||||||||||||
| H magnitude | 15.77 (0.2) | 15.77 (0.2) | 15.77 | 15.77 (0.2) | |||||||||||||
| K magnitude | 15.64 (0.3) | 15.64 (0.3) | 15.64 | 15.64 (0.2) | |||||||||||||
| u magnitude | 17.12 (0.008) | 17.13 | 17.13 (0.008) | 17.13 (0.008) | |||||||||||||
| g magnitude | 16.74 | 16.74 (0.002) | 16.74 (0.004) | ||||||||||||||
| r magnitude | 16.68 | 16.69 (0.002) | 16.68 (0.004) | ||||||||||||||
| i magnitude | 16.69 | 16.72 (0.003) | 16.69 (0.005) | ||||||||||||||
| z magnitude | 16.78 | 16.81 (0.004) | 16.78 (0.01) | ||||||||||||||
| G magnitude | 16.63 (0.006) | 16.64 | 16.64 | 16.63 | 16.63 (0.003) | 16.64 | |||||||||||
| BP magnitude | 16.76 (0.006) | 16.74 | 16.74 | ||||||||||||||
| RP magnitude | 16.38 (0.01) | 16.39 | 16.39 | ||||||||||||||
| Pan g magnitude | 16.74 (0.002) | 16.74 (0.002) | 16.74 (0.002) | ||||||||||||||
| Pan r magnitude | 16.69 (0.002) | 16.69 (0.002) | 16.69 (0.002) | ||||||||||||||
| Pan i magnitude | 16.72 (0.003) | 16.72 (0.003) | 16.72 (0.003) | ||||||||||||||
| Pan z magnitude | 16.81 (0.005) | 16.81 (0.004) | 16.82 (0.004) | ||||||||||||||
| Pan y magnitude | 16.86 (0.01) | 16.86 (0.01) | 16.86 (0.01) | ||||||||||||||
| E(B-V) | 0.000 | ||||||||||||||||
* 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.