All names: PM J09463+3251N, WD 0943+330, WDJ094621.42+325129.09, SDSS J094621.44+325128.6, GALEX J094621.4+325128, WD 0943+33, 2MASS J09462138+3251290, Gaia DR2 793575201703625984, 09463+3251N, J0946+3251, ** SKF 303B, EGGR 68, WDS J09464+3251B, G117-B11B, PSO J146.5896+32.8576, TIC 4839305, UBV 9228, G 117-B11B, Gaia DR3 793575201703625984, SDSS J094621.44+325128.7, Gaia EDR3 793575201703625984, CSI+33-09435 1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 46 21.52 (0.05) | 09 46 21.44 | 09 46 21.52 (0.07) | 09 46 21.52 | 09 46 21.42 (0.05) | 09 46 21.52 | 09 46 20.86 | 09 46 21.44 | |||||||||||
| Declination | 32 51 27.25 (0.04) | 32 51 28.66 | 32 51 27.31 (0.06) | 32 51 27.25 | 32 51 29.09 (0.04) | 32 51 27.31 | 32 51 25.20 | 32 51 28.68 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA7.2 | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 6679.0 (32) | 6752.0 (30) | 6679.0 (32) | 6620.0 (60) | 6653.0 | 6860.0 (119) | 7000.0 (123) | 6864.0 (43) | 6545.0 (29) | |||||||||
| log(g) | [cgs] | 8.15 (0.009) | 8.18 (0.008) | 8.15 (0.01) | 8.14 (0.02) | 8.14 | 8.56 (0.1) | 8.61 (0.1) | 8.22 (0.01) | 7.79 (0.06) | |||||||||
| Mass | [M☉] | 0.685 (0.008) | 0.704 (0.008) | 0.685 (0.008) | 0.678 (0.01) | 0.68 | 0.96 (0.09) | 0.99 (0.08) | 0.728 (0.01) | 0.487 (0.03) | |||||||||
| log(Luminosity) | [L☉] | -3.85 | |||||||||||||||||
| Cooling age | [Gyr] | 2.4000 | 2.3080 (0.1) | 2.2860 | |||||||||||||||
| 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] | 22.68 (0.07) | 22.68 (0.1) | 22.68 (0.1) | 22.68 (0.1) | 22.68 | 22.68 (0.07) | 22.68 (0.1) | |||||||||||
| Distance | [pc] | 44.10 (0.1) | 44.09 (0.2) | 44.08 (0.2) | 44.08 (0.2) | 34.20 (1) | 34.00 | 44.10 | 44.10 (0.1) | 44.08 (0.2) | |||||||||
| Composition | H | H | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 84.12798578 (0.07) | 84.09059454 (0.1) | 84.128 (0.07) | 84.091 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -114.5694028 (0.05) | -114.6090176 (0.1) | -114.569 (0.05) | -114.609 | ||||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | yes | ||||||||||||||||||
| B magnitude | 17.64 | ||||||||||||||||||
| V magnitude | 17.24 | ||||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 16.35 (0.01) | 16.39 (0.1) | 16.39 (0.1) | ||||||||||||||||
| H magnitude | 15.97 (0.2) | 15.97 (0.2) | 15.97 (0.2) | ||||||||||||||||
| K magnitude | 15.85 (0.2) | 15.85 (0.2) | 15.85 (0.2) | ||||||||||||||||
| u magnitude | 17.91 (0.01) | 17.88 (0.01) | 17.91 (0.01) | 17.91 (0.01) | 17.88 (0.02) | ||||||||||||||
| g magnitude | 17.29 (0.005) | 17.27 (0.007) | 17.29 (0.005) | 17.30 (0.02) | |||||||||||||||
| r magnitude | 17.07 (0.005) | 17.06 (0.004) | 17.07 (0.005) | 17.02 (0.01) | |||||||||||||||
| i magnitude | 16.99 (0.006) | 17.00 (0.004) | 16.99 (0.006) | 16.98 (0.02) | |||||||||||||||
| z magnitude | 17.04 (0.01) | 17.03 (0.008) | 17.04 (0.01) | 16.99 (0.01) | |||||||||||||||
| G magnitude | 17.04 (0.005) | 17.06 | 17.04 | 17.04 (0.003) | 17.06 | ||||||||||||||
| BP magnitude | 17.26 (0.005) | 17.25 | 17.25 | ||||||||||||||||
| RP magnitude | 16.67 (0.006) | 16.68 | 16.68 | ||||||||||||||||
| Pan g magnitude | 17.27 (0.006) | 17.27 (0.007) | 17.27 (0.007) | ||||||||||||||||
| Pan r magnitude | 17.06 (0.005) | 17.06 (0.004) | 17.06 (0.004) | ||||||||||||||||
| Pan i magnitude | 17.00 (0.004) | 17.00 (0.004) | 17.00 (0.004) | ||||||||||||||||
| Pan z magnitude | 17.03 (0.007) | 17.03 (0.008) | 17.03 (0.008) | ||||||||||||||||
| Pan y magnitude | 17.04 (0.007) | 17.04 (0.007) | 17.04 (0.007) | ||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||
* 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.