All names: LAMOST J140918.73+221529.3, SDSS J140918.70+221528.9, Gaia EDR3 1253556647097023616, WDJ140918.69+221529.06, Gaia DR3 1253556647097023616, Gaia DR2 1253556647097023616, WDJ140918.69+221529.05, GALEX J140918.7+221529, 2MASS J14091869+2215293, TIC 459829370
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 09 18.74 (0.03) | 14 09 18.74 | 14 09 18.74 | 14 09 18.69 (0.03) | 14 09 18.74 | ||||||
| Declination | 22 15 28.51 (0.03) | 22 15 28.53 | 22 15 28.51 | 22 15 29.06 (0.03) | 22 15 28.53 | ||||||
| Spectral type | DA | DA | DA | ||||||||
| Effective temperature | [K] | 13557.0 | 14243.0 | 14000.0 (423) | 14460.0 (138) | ||||||
| log(g) | [cgs] | 8.14 | 8.20 | 8.24 (0.04) | 8.20 (0.009) | ||||||
| Mass | [M☉] | 0.695 | 0.712 | 0.76 (0.03) | 0.736 (0.008) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.3291 | 0.3286 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 13.89 (0.05) | 13.89 (0.08) | 13.89 | 13.89 (0.05) | 13.89 (0.08) | |||||
| Distance | [pc] | 71.99 (0.3) | 72.00 (0.4) | 71.99 | 71.99 (0.3) | 72.00 (0.4) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 49.5273882 (0.04) | 49.54834124 (0.1) | 49.527 (0.04) | 49.54834124 | ||||||
| Proper motion (declination) | [mas/yr] | -34.29404997 (0.04) | -34.13290691 (0.1) | -34.294 (0.04) | -34.13290691 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.16 (0.1) | ||||||||||
| H magnitude | 16.17 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 16.18 (0.006) | 16.18 (0.006) | |||||||||
| g magnitude | 15.83 (0.003) | 15.83 (0.003) | |||||||||
| r magnitude | 16.11 (0.005) | 16.11 (0.005) | |||||||||
| i magnitude | 16.36 (0.005) | 16.36 (0.005) | |||||||||
| z magnitude | 16.60 (0.009) | 16.60 (0.009) | |||||||||
| G magnitude | 15.98 (0.003) | 16.00 | 15.98 | 15.98 (0.003) | 16.00 | ||||||
| BP magnitude | 15.96 (0.003) | 15.95 | 15.95 | ||||||||
| RP magnitude | 16.06 (0.004) | 16.07 | 16.07 | ||||||||
| Pan g magnitude | 15.89 (0.003) | ||||||||||
| Pan r magnitude | 16.12 (0.002) | ||||||||||
| Pan i magnitude | 16.37 (0.004) | ||||||||||
| Pan z magnitude | 16.61 (0.003) | ||||||||||
| Pan y magnitude | 16.74 (0.008) | ||||||||||
| E(B-V) | 0.005 | ||||||||||
* 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.