All names: PSO J010.2345-08.1539, SDSS J004056.25-080912.4, Gaia DR2 2522401586766106624, PB 8467, LP 645-70, 2MASS J00405616-0809081, WDJ004056.17-080908.56, J0040-0809, Gaia DR3 2522401586766106624, NLTT 2219, GALEX J004056.2-080907, Gaia EDR3 2522401586766106624, TIC 3816804
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Ferrario et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 40 56.31 (0.08) | 00 40 56.25 | 00 40 56.30 (0.1) | 00 40 56.31 | 00 40 56.17 (0.08) | 00 40 56.30 | ||||||||||
| Declination | -08 09 14.80 (0.05) | -08 09 12.48 | -08 09 14.61 (0.06) | -08 09 14.80 | -08 09 08.56 (0.05) | -08 09 14.61 | ||||||||||
| Spectral type | DAP | DA | DA | DA | DA | DA | DC | |||||||||
| Effective temperature | [K] | 6080.0 (67) | 6089.0 (31) | 6040.0 (40) | 5946.0 | 5678.0 | 6000.0 (180) | 6050.0 (34) | ||||||||
| log(g) | [cgs] | 8.26 (0.03) | 8.29 (0.01) | 8.27 (0.02) | 8.22 | 8.07 | 8.25 (0.01) | |||||||||
| Mass | [M☉] | 0.756 (0.02) | 0.772 (0.009) | 0.757 (0.01) | 0.73 | 0.614 | 0.59 | 0.746 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 4.3300 | 4.0540 (0.1) | 3.9660 | 4.0110 | |||||||||||
| 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] | 26.71 (0.09) | 26.71 (0.09) | 26.90 (0.1) | 26.90 (0.1) | 26.90 (0.1) | 26.71 | 26.71 (0.09) | 26.90 (0.1) | |||||||
| Distance | [pc] | 37.43 (0.1) | 37.44 (0.1) | 37.17 (0.2) | 37.17 (0.2) | 37.17 (0.2) | 37.43 | 37.43 (0.1) | 37.17 (0.2) | |||||||
| Composition | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 125.1597184 (0.1) | 124.8998831 (0.3) | 125.16 (0.1) | 124.8998831 | |||||||||||
| Proper motion (declination) | [mas/yr] | -389.928371 (0.1) | -390.0531687 (0.1) | -389.928 (0.1) | -390.0531687 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | yes | |||||||||||||||
| Bd | [MG] | 0.307 * | ||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 17.50 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | ||||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.32 (0.01) | 16.39 (0.1) | 16.39 (0.1) | |||||||||||||
| H magnitude | 16.29 (0.2) | 16.29 (0.2) | 16.29 (0.2) | |||||||||||||
| K magnitude | 16.05 (0.05) | |||||||||||||||
| u magnitude | 18.45 (0.02) | 18.44 (0.02) | 18.44 (0.02) | 18.44 (0.02) | ||||||||||||
| g magnitude | 17.58 (0.005) | 17.53 (0.005) | 17.57 (0.005) | |||||||||||||
| r magnitude | 17.22 (0.005) | 17.22 (0.002) | 17.21 (0.005) | |||||||||||||
| i magnitude | 17.11 (0.006) | 17.09 (0.004) | 17.11 (0.006) | |||||||||||||
| z magnitude | 17.10 (0.01) | 17.09 (0.006) | 17.07 (0.01) | |||||||||||||
| G magnitude | 17.21 (0.007) | 17.23 | 17.21 | 17.21 (0.003) | 17.23 | |||||||||||
| BP magnitude | 17.49 (0.007) | 17.51 | 17.51 | |||||||||||||
| RP magnitude | 16.76 (0.006) | 16.77 | 16.77 | |||||||||||||
| Pan g magnitude | 17.57 (0.03) | 17.57 (0.03) | 17.53 (0.005) | |||||||||||||
| Pan r magnitude | 17.22 (0.005) | 17.22 (0.004) | 17.22 (0.002) | |||||||||||||
| Pan i magnitude | 17.09 (0.005) | 17.09 (0.005) | 17.09 (0.004) | |||||||||||||
| Pan z magnitude | 17.08 (0.009) | 17.08 (0.01) | 17.09 (0.006) | |||||||||||||
| Pan y magnitude | 17.09 (0.01) | 17.09 (0.01) | 17.09 (0.006) | |||||||||||||
| 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.