All names: SDSS J134820.79+381017.2, WD 1346+384, GALEX J134820.8+381017, Gaia DR2 1496389390730056576, SDSS J134820.80+381017.2, Gaia EDR3 1496389390730056576, Gaia DR3 1496389390730056576
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Hardy et al. 2023a | Gaia DR2 | Stilism | Ferrario et al. 2015 | Kulebi et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 48 20.79 (0.05) | 13 48 20.80 | 13 48 20.79 (0.06) | 13 48 20.79 | 13 48 20.79 | 13 48 20.80 (0.05) | 13 48 19.97 | 13 48 20.80 | ||||||
| Declination | 38 10 17.29 (0.07) | 38 10 17.27 | 38 10 17.29 (0.08) | 38 10 17.18 | 38 10 17.29 | 38 10 17.15 (0.07) | 38 10 11.64 | 38 10 17.25 | ||||||
| Spectral type | DAH | DA | DAH | DA: | DAH | DAH1.4 | DAH | DAH | ||||||
| Effective temperature | [K] | 30000.0 (3e-06) | 35000.0 | 33281.0 (1518) | 45528.0 (864) | |||||||||
| log(g) | [cgs] | 9.13 (0.03) | 8.00 (0) | 9.23 (0.04) | 10.00 (0.004) | |||||||||
| Mass | [M☉] | 1.2538062314264964 (0.02) | 1.287 (0.01) | |||||||||||
| 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] | 7.18 (0.1) | 7.14 (0.1) | 7.18 | 7.18 (0.1) | |||||||||
| Distance | [pc] | 139.23 (2) | 140.09 (2) | 139.23 | 139.24 (2) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -11.58039077 (0.06) | -11.62881739 (0.1) | -11.58 (0.06) | ||||||||||
| Proper motion (declination) | [mas/yr] | 8.874208655 (0.08) | 8.897288397 (0.1) | 8.874 (0.08) | ||||||||||
| Variability | ||||||||||||||
| Magnetic | yes | yes | yes | yes | ||||||||||
| Bd | [MG] | 14.658977876954552 | 13.65 (3) | 13.65 (3) | ||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 17.25 (0.009) | 17.25 (0.009) | 17.26 | 17.24 (0.02) | ||||||||||
| g magnitude | 17.55 (0.005) | 17.55 (0.005) | 17.54 | 17.55 (0.02) | ||||||||||
| r magnitude | 18.05 (0.007) | 18.05 (0.007) | 18.04 | 18.08 (0.02) | ||||||||||
| i magnitude | 18.35 (0.009) | 18.35 (0.009) | 18.33 | 18.36 (0.01) | ||||||||||
| z magnitude | 18.71 (0.03) | 18.71 (0.03) | 18.70 | 18.73 (0.04) | ||||||||||
| G magnitude | 17.81 (0.005) | 17.84 | 17.81 | 17.81 (0.003) | ||||||||||
| BP magnitude | 17.67 (0.005) | 17.61 | ||||||||||||
| RP magnitude | 18.10 (0.01) | 18.07 | ||||||||||||
| Pan g magnitude | 17.65 (0.008) | |||||||||||||
| Pan r magnitude | 18.05 (0.009) | |||||||||||||
| Pan i magnitude | 18.40 (0.006) | |||||||||||||
| Pan z magnitude | 18.68 (0.01) | |||||||||||||
| Pan y magnitude | 18.88 (0.02) | |||||||||||||
| E(B-V) | 0.012 | |||||||||||||
* 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.