All names: TIC 25093609, Gaia EDR3 6836795672680406272, Gaia DR3 6836795672680406272, WDJ214342.61-181131.74, HE 2140-1825, USNO-B1.0 0718-01005429, GALEX J214342.5-181131, 2MASS J21434260-1811316, Gaia DR2 6836795672680406272, WD 2140-184, EC 21409-1825
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 43 42.60 (0.04) | 21 43 42.60 (0.1) | 21 43 42.60 | 21 43 42.61 (0.04) | 21 43 42.60 | 21 43 42.26 | ||||
| Declination | -18 11 32.39 (0.03) | -18 11 32.37 (0.06) | -18 11 32.39 | -18 11 31.74 (0.03) | -18 11 32.37 | -18 11 25.08 | ||||
| Spectral type | DA | DA | DA | |||||||
| Effective temperature | [K] | 13950.0 (39) | 14437.0 (114) | |||||||
| log(g) | [cgs] | 7.75 (0.006) | 7.96 (0.008) | |||||||
| Mass | [M☉] | 0.587 (0.006) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 14.45 (0.04) | 14.28 (0.1) | 14.45 | 14.45 (0.04) | 14.28 (0.1) | ||||
| Distance | [pc] | 69.19 (0.2) | 70.05 (0.7) | 69.19 | 69.19 (0.2) | 70.05 (0.7) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -14.202814 (0.06) | -14.15796411 (0.2) | -14.203 (0.06) | -14.15796411 | |||||
| Proper motion (declination) | [mas/yr] | -40.81183181 (0.04) | -40.79657145 (0.1) | -40.812 (0.04) | -40.79657145 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.04 | 15.62 | ||||||||
| V magnitude | 15.58 | |||||||||
| R magnitude | 15.30 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.79 (0.07) | |||||||||
| H magnitude | 15.93 (0.1) | |||||||||
| K magnitude | 15.53 (0.2) | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 15.52 (0.002) | 15.55 | 15.52 | 15.52 (0.003) | 15.55 | |||||
| BP magnitude | 15.50 (0.002) | 15.50 | 15.50 | |||||||
| RP magnitude | 15.61 (0.002) | 15.63 | 15.63 | |||||||
| Pan g magnitude | 15.42 (0.002) | |||||||||
| Pan r magnitude | 15.66 (0.002) | |||||||||
| Pan i magnitude | 15.93 (0.001) | |||||||||
| Pan z magnitude | 16.16 (0.003) | |||||||||
| Pan y magnitude | 16.32 (0.007) | |||||||||
| E(B-V) | 0.002 | |||||||||
* 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.