All names: GALEX J001440.7-075855, Gaia DR3 2429392661221943040, Gaia DR2 2429392661221943040, J0014-0758, SDSS J001440.77-075856.9, SDSS J001440.77-075857.0, WDJ001440.69-075856.97, WDJ001440.69-075856.96
| Parameter | Unit | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 14 40.88 | 00 14 40.89 | 00 14 40.69 (0.2) | 00 14 40.88 | ||||||||
| Declination | -07 58 56.84 | -07 58 56.84 | -07 58 56.98 (0.2) | -07 58 56.84 | ||||||||
| Spectral type | DC | DC | DC | DA | DC | |||||||
| Effective temperature | [K] | 5585.0 (52) | 5725.0 (53) | 5585.0 (51) | 5993.0 | 5750.0 | 5976.0 (195) | |||||
| log(g) | [cgs] | 7.99 (0.04) | 8.13 (0.05) | 8.02 (0.05) | 8.28 | 8.14 | 8.26 (0.07) | |||||
| Mass | [M☉] | 0.567 (0.03) | 0.651 (0.04) | 0.581 (0.04) | 0.766 | 0.66 | 0.752 (0.06) | |||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 4.4700 | 4.2260 | 4.3360 | ||||||||
| log(H/He) | -5.0 | -5 | ||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(N/He) | ||||||||||||
| log(O/He) | ||||||||||||
| log(Na/He) | ||||||||||||
| log(Mg/He) | ||||||||||||
| log(Al/He) | ||||||||||||
| log(Si/He) | ||||||||||||
| log(P/He) | ||||||||||||
| log(S/He) | ||||||||||||
| log(Cl/He) | ||||||||||||
| log(Sc/He) | ||||||||||||
| log(Ti/He) | ||||||||||||
| log(V/He) | ||||||||||||
| log(Cr/He) | ||||||||||||
| log(Mn/He) | ||||||||||||
| log(Fe/He) | ||||||||||||
| log(Co/He) | ||||||||||||
| log(Ni/He) | ||||||||||||
| log(Cu/He) | ||||||||||||
| log(Zn/He) | ||||||||||||
| log(Ga/He) | ||||||||||||
| log(Ge/He) | ||||||||||||
| log(Sr/He) | ||||||||||||
| Parallax | [mas] | 10.86 (0.4) | 10.86 (0.4) | 10.71 | 10.71 (0.3) | 10.86 (0.4) | ||||||
| Distance | [pc] | 92.08 (4) | 92.06 (4) | 93.40 | 93.40 (2) | 92.06 (4) | ||||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 184.7936767 (0.8) | 184.026 (0.3) | 184.7936767 | ||||||||
| Proper motion (declination) | [mas/yr] | 8.153338355 (0.5) | 8.642 (0.2) | 8.153338355 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 18.33 (0.08) | |||||||||||
| H magnitude | ||||||||||||
| K magnitude | 17.84 (0.2) | |||||||||||
| u magnitude | 20.50 (0.1) | 20.35 (0.06) | 20.35 (0.06) | |||||||||
| g magnitude | 19.59 (0.01) | 19.59 (0.01) | ||||||||||
| r magnitude | 19.23 (0.01) | 19.23 (0.01) | ||||||||||
| i magnitude | 19.07 (0.01) | 19.07 (0.01) | ||||||||||
| z magnitude | 19.05 (0.05) | 19.05 (0.05) | ||||||||||
| G magnitude | 19.29 | 19.26 | 19.26 (0.004) | 19.29 | ||||||||
| BP magnitude | 19.52 | 19.52 | ||||||||||
| RP magnitude | 18.79 | 18.79 | ||||||||||
| Pan g magnitude | 19.58 (0.01) | 19.58 (0.01) | ||||||||||
| Pan r magnitude | 19.23 (0.008) | 19.23 (0.009) | ||||||||||
| Pan i magnitude | 19.13 (0.004) | 19.13 (0.004) | ||||||||||
| Pan z magnitude | 19.11 (0.01) | 19.11 (0.01) | ||||||||||
| Pan y magnitude | 19.12 (0.03) | 19.12 (0.03) | ||||||||||
| E(B-V) | 0.002 | |||||||||||
* 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.