All names: SDSS J031455.95-081518.5, SDSS J031455.94-081518.5, WDJ031455.95-081518.53, Gaia DR3 5167525434447523712, Gaia DR2 5167525434447523712, WD 0312-084, WT 1363, Gaia EDR3 5167525434447523712, TIC 9885355, J0314-0815, 2MASS J03145591-0815186, LP 652-342, NLTT 10358
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Gaia DR2 | Stilism | Sayres et al. 2012 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 14 56.20 (0.06) | 03 14 56.19 (0.09) | 03 14 55.94 | 03 14 56.20 | 03 14 55.95 (0.06) | 03 14 56.19 | |||||
| Declination | -08 15 17.45 (0.06) | -08 15 17.48 (0.08) | -08 15 18.60 | -08 15 17.45 | -08 15 18.53 (0.06) | -08 15 17.48 | |||||
| Spectral type | DQ | DQ | DQ | DC | DQ | ||||||
| Effective temperature | [K] | 8948.0 (52) | 9163.0 (41) | 9080.0 (50) | 9271.0 (148) | ||||||
| log(g) | [cgs] | 7.88 (0.009) | 7.97 (0.01) | 8.04 (0.03) | |||||||
| Mass | [M☉] | 0.509 (0.007) | 0.56 (0.008) | 0.602 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.7900 | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | -4.32 | -4.74 | -4.2 (0.2) | ||||||||
| 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] | 14.29 (0.07) | 14.29 (0.1) | 14.29 (0.1) | 14.29 | 14.29 (0.07) | 14.29 (0.1) | ||||
| Distance | [pc] | 69.97 (0.3) | 69.98 (0.5) | 69.97 (0.5) | 68.90 | 69.97 | 69.97 (0.3) | 69.97 (0.5) | |||
| Composition | He | He | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 227.8596827 (0.07) | 227.9927054 (0.2) | 227.86 (0.07) | 227.9927054 | ||||||
| Proper motion (declination) | [mas/yr] | 67.48205754 (0.07) | 67.51868641 (0.2) | 67.482 (0.07) | 67.51868641 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.50 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.74 (0.02) | 16.76 (0.2) | 16.76 (0.2) | ||||||||
| H magnitude | 16.89 (0.03) | 16.89 | |||||||||
| K magnitude | 16.72 (0.07) | 16.93 | |||||||||
| u magnitude | 16.98 (0.007) | 16.95 (0.008) | 16.99 (0.007) | 16.99 (0.007) | |||||||
| g magnitude | 16.80 (0.004) | 16.80 (0.004) | 16.80 (0.004) | ||||||||
| r magnitude | (0.005) | 16.90 (0.005) | 16.90 (0.005) | ||||||||
| i magnitude | 17.02 (0.006) | 17.02 (0.005) | 17.02 (0.005) | ||||||||
| z magnitude | 17.18 (0.02) | 17.18 (0.01) | 17.18 (0.01) | ||||||||
| G magnitude | 16.82 (0.006) | 16.84 | 16.82 | 16.82 (0.003) | 16.84 | ||||||
| BP magnitude | 16.87 (0.006) | 16.85 | 16.85 | ||||||||
| RP magnitude | 16.74 (0.007) | 16.74 | 16.74 | ||||||||
| Pan g magnitude | 16.83 (0.005) | 16.83 (0.005) | |||||||||
| Pan r magnitude | 16.91 (0.004) | 16.91 (0.005) | |||||||||
| Pan i magnitude | 17.05 (0.003) | 17.05 (0.002) | |||||||||
| Pan z magnitude | 17.19 (0.009) | 17.19 (0.009) | |||||||||
| Pan y magnitude | 17.30 (0.008) | 17.30 (0.009) | |||||||||
| 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.