All names: FBS 1305-017, SDSS J130815.21-015904.3, LAMOST J130815.22-015903.8, GALEX J130815.2-015903, Gaia DR3 3685650597933742592, Gaia EDR3 3685650597933742592, SDSS J130815.22-015904.5, Gaia DR2 3685650597933742592, SDSS J130815.20-015904.2, WD 1305-017, PG 1305-017, SDSS J130815.21-015904.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Tremblay et al. 2011 | Liebert et al. 2005 | 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 15.19 (0.07) | 13 08 15.21 | 13 08 15.19 (0.1) | 13 08 15.19 | 13 08 15.21 (0.07) | 13 08 15.21 | 13 08 16.39 | 13 08 15.22 | 13 08 15.22 | ||||||||
| Declination | -01 59 04.19 (0.05) | -01 59 04.40 | -01 59 04.19 (0.07) | -01 59 04.19 | -01 59 04.42 (0.05) | -01 59 04.41 | -01 59 05.64 | -01 59 04.49 | -01 59 04.49 | ||||||||
| Spectral type | DAB | DA | DAO | DA | DAO1.1 | DA | DAO1 | DAO | DA | ||||||||
| Effective temperature | [K] | 42049.0 (698) | 44400.0 (743) | 53040.0 (1480) | 44410.0 (1526) | 57609.0 (10195) | 56566.0 (952) | 55385.0 (913) | 56757.0 (959) | ||||||||
| log(g) | [cgs] | 7.90 (0.06) | 7.76 (0.08) | 7.73 (0.1) | 7.76 (0.1) | 8.09 (0.08) | 7.61 (0.06) | 7.68 (0.06) | 7.62 (0.06) | ||||||||
| Mass | [M☉] | 0.58 (0.03) | 0.57 (0.03) | 0.58 (0.04) | 0.57 (0.05) | 0.747 (0.06) | |||||||||||
| log(Luminosity) | [L☉] | -0.24 (0.05) | -0.02 | ||||||||||||||
| Cooling age | [Gyr] | 0.0036 (0.0002) | 0.1001 | 0.0032 | |||||||||||||
| 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] | 2.65 (0.09) | 2.67 (0.1) | 2.65 | 2.65 (0.09) | ||||||||||||
| Distance | [pc] | 377.85 (12) | 375.07 (19) | 448.00 | 457.00 | 377.85 | 377.86 (12) | ||||||||||
| Composition | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -23.6315254 (0.1) | -23.70242157 (0.3) | -23.632 (0.1) | -21.1 | -22.0 | |||||||||||
| Proper motion (declination) | [mas/yr] | 14.30932204 (0.07) | 14.35693004 (0.1) | 14.309 (0.07) | 14.7 | 14.0 | |||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 16.25 | ||||||||||||||||
| V magnitude | 17.05 | 16.00 | |||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 17.89 (0.06) | ||||||||||||||||
| H magnitude | 17.75 (0.09) | ||||||||||||||||
| K magnitude | |||||||||||||||||
| u magnitude | 16.39 (0.006) | 16.39 (0.006) | 16.39 (0.03) | 16.38 | 16.40 (0.03) | 16.39 (0.03) | |||||||||||
| g magnitude | 16.81 (0.004) | 16.81 (0.004) | 16.82 (0.03) | 16.82 | 16.82 (0.03) | 16.80 (0.06) | |||||||||||
| r magnitude | 17.30 (0.005) | 17.30 (0.005) | 17.29 (0.02) | 17.29 | 17.29 (0.02) | 17.30 (0.01) | |||||||||||
| i magnitude | 17.67 (0.007) | 17.67 (0.007) | 17.67 (0.02) | 17.67 | 17.67 (0.02) | 17.67 (0.02) | |||||||||||
| z magnitude | 18.00 (0.02) | 18.00 (0.03) | 18.04 (0.03) | 18.03 | 18.02 (0.03) | 18.04 (0.03) | |||||||||||
| G magnitude | 17.09 (0.006) | 17.13 | 17.09 | 17.09 (0.003) | |||||||||||||
| BP magnitude | 16.94 (0.006) | 16.89 | |||||||||||||||
| RP magnitude | 17.40 (0.01) | 17.38 | |||||||||||||||
| Pan g magnitude | 16.92 (0.004) | ||||||||||||||||
| Pan r magnitude | 17.36 (0.005) | ||||||||||||||||
| Pan i magnitude | 17.73 (0.005) | ||||||||||||||||
| Pan z magnitude | 18.01 (0.007) | ||||||||||||||||
| Pan y magnitude | 18.22 (0.02) | ||||||||||||||||
| E(B-V) | 0.024 | ||||||||||||||||
* 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.