All names: NLTT 347, WDJ000821.72-143502.19, GALEX J000821.7-143501, G 158-134, LP 764-69, 2MASS J00082168-1435023, J0008-1435, Gaia DR3 2417481205081646592, Gaia DR2 2417481205081646592, Gaia EDR3 2417481205081646592
| Parameter | Unit | Gaia EDR3 | Caron et al. 2023 | Gaia DR2 | Stilism | Ferrario et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 08 21.91 (0.2) | 00 08 21.91 (0.2) | 00 08 21.91 | 00 08 21.72 (0.2) | 00 08 21.91 | ||||
| Declination | -14 35 02.77 (0.1) | -14 35 02.75 (0.2) | -14 35 02.77 | -14 35 02.20 (0.1) | -14 35 02.75 | ||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 6534.0 (30) | 6400.0 (180) | 6495.0 (58) | |||||
| log(g) | [cgs] | 7.50 (0.02) | 7.49 (0.02) | ||||||
| Mass | [M☉] | 0.341 (0.01) | 0.59 | 0.338 (0.01) | |||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 1.0300 | |||||||
| 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] | 16.46 (0.2) | 16.36 (0.2) | 16.36 (0.3) | 16.46 | 16.46 (0.2) | 16.36 (0.3) | ||
| Distance | [pc] | 60.75 (0.7) | 61.12 (0.9) | 61.11 (0.9) | 60.75 | 60.75 (0.7) | 61.11 (0.9) | ||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 172.4838197 (0.2) | 172.9321556 (0.5) | 172.484 (0.2) | 172.9321556 | ||||
| Proper motion (declination) | [mas/yr] | -35.56847217 (0.2) | -36.11318322 (0.3) | -35.568 (0.2) | -36.11318322 | ||||
| Variability | |||||||||
| Magnetic | yes | ||||||||
| Bd | [MG] | -0.0046 (0.002) | |||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | 16.86 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.16 (0.09) | 16.16 (0.09) | |||||||
| H magnitude | 16.15 (0.2) | 16.14 (0.2) | |||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 17.06 (0.007) | 17.02 | 17.06 | 17.06 (0.005) | 17.02 | ||||
| BP magnitude | 17.22 (0.007) | 17.21 | 17.21 | ||||||
| RP magnitude | 16.59 (0.006) | 16.59 | 16.59 | ||||||
| Pan g magnitude | 17.22 (0.004) | ||||||||
| Pan r magnitude | 16.99 (0.004) | ||||||||
| Pan i magnitude | 16.92 (0.005) | ||||||||
| Pan z magnitude | 16.93 (0.005) | ||||||||
| Pan y magnitude | 16.96 (0.01) | ||||||||
| E(B-V) | 0.001 | ||||||||
* 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.