All names: Gaia DR3 641469514735073024, SDSS J094640.32+233733.4, 2MASS J09464035+2337337, Gaia DR2 641469514735073024, LAMOST J094640.31+233733.3, SDSS J094640.32+233733.3, WD 0943+238, GALEX J094640.3+233733, TIC 87974589, Gaia EDR3 641469514735073024, SDSS J094640.31+233733.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 46 40.27 (0.07) | 09 46 40.31 | 09 46 40.27 (0.1) | 09 46 40.31 | 09 46 40.35 (0.07) | 09 46 40.03 | 09 46 40.32 | ||||
| Declination | 23 37 32.86 (0.06) | 23 37 33.36 | 23 37 32.88 (0.09) | 23 37 33.31 | 23 37 33.51 (0.06) | 23 37 30.00 | 23 37 33.39 | ||||
| Spectral type | DA+M | DA+M | DA3.0 M | DA+M | DA | ||||||
| Effective temperature | [K] | 16336.0 (298) | 8658.0 (42) | ||||||||
| log(g) | [cgs] | 8.00 (0.07) | 6.21 (0.1) | ||||||||
| Mass | [M☉] | 0.62 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 5.04 (0.08) | 5.24 (0.1) | 5.04 (0.08) | |||||||
| Distance | [pc] | 198.43 (3) | 191.00 (5) | 218.00 (22) | 198.42 (3) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -69.04727851 (0.08) | -68.7214932 (0.2) | -69.047 (0.08) | |||||||
| Proper motion (declination) | [mas/yr] | -40.49038077 (0.06) | -40.58573203 (0.1) | -40.49 (0.06) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 14.81 (0.03) | ||||||||||
| H magnitude | 14.20 (0.04) | ||||||||||
| K magnitude | 13.96 (0.04) | ||||||||||
| u magnitude | 17.72 (0.01) | 17.71 | 17.73 (0.01) | 17.70 | 17.73 (0.02) | ||||||
| g magnitude | 17.41 (0.005) | 17.40 | 17.39 (0.005) | 17.39 | 17.41 (0.03) | ||||||
| r magnitude | 17.34 (0.005) | 17.33 | 17.34 (0.005) | 17.33 | 17.34 (0.02) | ||||||
| i magnitude | 16.70 (0.005) | 16.69 | 16.71 (0.005) | 16.69 | 16.70 (0.01) | ||||||
| z magnitude | 16.11 (0.008) | 16.08 | 16.10 (0.008) | 16.08 | 16.10 (0.02) | ||||||
| G magnitude | 16.99 (0.005) | 16.99 | 16.99 (0.003) | ||||||||
| BP magnitude | 17.44 (0.005) | 17.42 | |||||||||
| RP magnitude | 16.25 (0.004) | 16.25 | |||||||||
| Pan g magnitude | 17.41 (0.003) | ||||||||||
| Pan r magnitude | 17.37 (0.006) | ||||||||||
| Pan i magnitude | 16.70 (0.003) | ||||||||||
| Pan z magnitude | 16.23 (0.004) | ||||||||||
| Pan y magnitude | 15.97 (0.006) | ||||||||||
| E(B-V) | 0.013 | ||||||||||
* 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.