All names: WD 1742-722, 2MASS J17483118-7217186, LEHPM 2-1166, WDJ174831.22-721718.68, Gaia EDR3 5803689358905636736, Gaia DR3 5803689358905636736, GALEX J174830.7-721720, TIC 256156660, Gaia DR2 5803689358905636736
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Subasavage et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 48 30.38 (0.02) | 17 48 30.41 (0.03) | 17 48 31.21 | 17 48 30.38 | 17 48 31.22 (0.02) | 17 48 30.41 | 17 48 31.51 | |||
| Declination | -72 17 22.03 (0.02) | -72 17 21.93 (0.04) | -72 17 18.50 | -72 17 22.03 | -72 17 18.68 (0.02) | -72 17 21.93 | -72 17 15.36 | |||
| Spectral type | DA | DA3.5 | DA | DA2.8 | DA3.3 | |||||
| Effective temperature | [K] | 17930.0 (265) | 15102.0 (2451) | 16971.0 (156) | ||||||
| log(g) | [cgs] | 7.85 (0.04) | 7.91 (0.009) | |||||||
| Mass | [M☉] | 0.54 (0.02) | 0.565 (0.007) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| 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] | 12.14 (0.03) | 12.04 (0.05) | 12.14 | 12.14 (0.03) | 12.04 (0.05) | ||||
| Distance | [pc] | 82.40 (0.2) | 83.08 (0.3) | 91.00 | 71.70 | 82.40 | 82.40 (0.2) | 83.08 (0.3) | ||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -239.7257517 (0.03) | -239.7708535 (0.06) | -239.726 (0.03) | -239.7708535 | |||||
| Proper motion (declination) | [mas/yr] | -209.4915905 (0.03) | -209.5107769 (0.08) | -209.492 (0.03) | -209.5107769 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | 15.53 | |||||||||
| R magnitude | 15.62 | |||||||||
| I magnitude | 15.70 | |||||||||
| J magnitude | 15.85 (0.08) | 15.85 (0.08) | ||||||||
| H magnitude | 15.99 (0.2) | 15.99 (0.2) | ||||||||
| K magnitude | 15.65 | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 15.53 (0.001) | 15.55 | 15.53 | 15.53 (0.003) | 15.55 | |||||
| BP magnitude | 15.48 (0.001) | 15.47 | 15.47 | |||||||
| RP magnitude | 15.68 (0.002) | 15.68 | 15.68 | |||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.006 | |||||||||
* 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.