All names: GALEX J130842.4+013446, PSO J197.1765+01.5793, Gaia DR3 3691158803295816192, SDSS J130842.44+013445.8, SDSS J130842.43+013445.7, WD 1306+018, 2MASS J13084243+0134457, WIRED J130842.43+013445.7, Gaia DR2 3691158803295816192, TIC 381725266, Gaia EDR3 3691158803295816192
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Blouin et al. 2019 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 08 42.37 (0.08) | 13 08 42.45 | 13 08 42.37 (0.1) | 13 08 42.37 | 13 08 42.44 (0.08) | 13 08 42.44 | 13 08 42.19 | 13 08 42.43 | 13 08 42.43 | ||||||
| Declination | 01 34 45.78 (0.05) | 01 34 45.84 | 01 34 45.78 (0.07) | 01 34 45.78 | 01 34 45.73 (0.05) | 01 34 45.80 | 01 34 42.96 | 01 34 45.71 | 01 34 45.70 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA6.0 | DA | DA | |||||||
| Effective temperature | [K] | 7760.0 (75) | 8070.0 (40) | 7852.0 (82) | 8336.0 (28) | 7947.0 (30) | 8401.0 (25) | ||||||||
| log(g) | [cgs] | 7.10 (0.04) | 8.07 (0.07) | 7.11 (0.02) | 8.43 (0.05) | 7.89 (0.06) | 8.53 (0.04) | ||||||||
| Mass | [M☉] | 0.226 (0.008) | 0.64 (0.04) | 0.228 (0.008) | 0.537 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.5040 (0.02) | 1.1749 | ||||||||||||
| 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] | 8.81 (0.09) | 8.90 (0.1) | 8.90 (0.1) | 8.81 | 8.81 (0.09) | |||||||||
| Distance | [pc] | 113.49 (1) | 112.40 (2) | 112.40 (2) | 113.49 | 113.49 (1) | |||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -68.22039404 (0.1) | -68.79174974 (0.3) | -68.22 (0.1) | -65.8 | -65.0 | |||||||||
| Proper motion (declination) | [mas/yr] | 3.031144551 (0.08) | 3.383335024 (0.1) | 3.031 (0.08) | 4.6 | 4.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.60 (0.1) | 16.60 (0.1) | |||||||||||||
| H magnitude | 16.50 (0.02) | ||||||||||||||
| K magnitude | 16.37 (0.04) | ||||||||||||||
| u magnitude | 17.68 (0.01) | 17.68 (0.01) | 17.67 (0.01) | 17.66 | 17.68 (0.01) | 17.66 (0.01) | |||||||||
| g magnitude | 17.19 (0.005) | 17.20 (0.004) | 17.21 (0.03) | 17.21 | 17.22 (0.03) | 17.21 (0.03) | |||||||||
| r magnitude | 17.13 (0.005) | 17.15 (0.003) | 17.13 (0.02) | 17.12 | 17.14 (0.02) | 17.12 (0.01) | |||||||||
| i magnitude | 17.15 (0.006) | 17.15 (0.005) | 17.15 (0.02) | 17.15 | 17.15 (0.02) | 17.15 (0.02) | |||||||||
| z magnitude | 17.22 (0.01) | 17.24 (0.007) | 17.22 (0.02) | 17.22 | 17.23 (0.02) | 17.22 (0.03) | |||||||||
| G magnitude | 17.08 (0.007) | 17.10 | 17.08 | 17.08 (0.003) | |||||||||||
| BP magnitude | 17.23 (0.007) | 17.22 | |||||||||||||
| RP magnitude | 16.85 (0.006) | 16.84 | |||||||||||||
| Pan g magnitude | 17.20 (0.004) | 17.20 (0.004) | |||||||||||||
| Pan r magnitude | 17.15 (0.003) | 17.15 (0.003) | |||||||||||||
| Pan i magnitude | 17.15 (0.005) | 17.15 (0.005) | |||||||||||||
| Pan z magnitude | 17.24 (0.007) | 17.24 (0.007) | |||||||||||||
| Pan y magnitude | 17.31 (0.007) | 17.31 (0.007) | |||||||||||||
| E(B-V) | 0.008 | ||||||||||||||
* 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.