All names: LAMOST J094700.62+181954.5, WD 0944+185, Gaia DR3 621162329538710784, Gaia EDR3 621162329538710784, SDSS J094700.62+181954.6, Gaia DR2 621162329538710784, SDSS J094700.61+181954.6, GALEX J094700.6+181954, SDSS J094700.61+181954.5
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Stilism | Guo et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 47 00.60 (0.2) | 09 47 00.62 | 09 47 00.63 (0.2) | 09 47 00.07 | 09 47 00.62 | |||
| Declination | 18 19 53.95 (0.1) | 18 19 54.61 | 18 19 54.91 (0.1) | 18 19 47.28 | 18 19 54.56 | |||
| Spectral type | DA+M | DA | DA4.3 M | DA+M | ||||
| Effective temperature | [K] | 21743.0 (263) | ||||||
| log(g) | [cgs] | 6.67 (0.04) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 5.63 (0.2) | 5.63 (0.2) | |||||
| Distance | [pc] | 177.59 (6) | 177.59 (6) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -23.0043306 (0.3) | -23.004 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | -60.01588906 (0.1) | -60.016 (0.1) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 18.22 (0.01) | 18.22 (0.01) | 18.32 | 18.31 (0.02) | ||||
| g magnitude | 17.90 (0.006) | 17.90 (0.006) | 17.98 | 17.99 (0.06) | ||||
| r magnitude | 17.92 (0.007) | 17.92 (0.007) | 18.11 | 18.12 (0.2) | ||||
| i magnitude | 18.45 (0.01) | 18.45 (0.01) | 18.41 | 18.42 (0.8) | ||||
| z magnitude | 22.83 (1) | 22.83 (1) | 22.82 | 22.84 (0.6) | ||||
| G magnitude | 17.95 | 17.95 (0.003) | ||||||
| BP magnitude | ||||||||
| RP magnitude | ||||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.012 | |||||||
* 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.