All names: SDSS J104559.14+590448.2, EGGR 434, Gaia EDR3 855361055035055104, SDSS J104559.14+590448.3, PLX 2509.02, Gaia DR2 855361055035055104, Gaia DR3 855361055035055104, LHS 291, WD 1042+59, SDSS J104559.15+590448.3, PSO J161.4917+59.0766, NLTT 25252, WD 1042+593, USNO 610, SDSS J104559.15+590448.2, LP 93-21, SBSS 1042+593, SDSS J104557.60+590431.1, SDSS J104559.13+590448.3, USNO-B1.0 1490-00195775, 1042+593, J1045+5904, WDJ104559.42+590451.32, LSPM J1045+5904
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Leggett et al. 2018 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 45 57.31 (0.06) | 10 45 59.15 | 10 45 57.37 (0.08) | 10 45 57.31 | 10 45 59.42 (0.06) | 10 45 57.37 | 10 45 59.14 | 10 46 04.03 | 10 45 59.14 | |||||||
| Declination | 59 04 27.92 (0.07) | 59 04 48.28 | 59 04 28.65 (0.1) | 59 04 27.92 | 59 04 51.31 (0.07) | 59 04 28.65 | 59 04 48.33 | 59 05 11.76 | 59 04 48.32 | |||||||
| Spectral type | DQ | DQ | DQ5.2 | DQ | DQ8 | DQpec | DQ8 | DQ_CI | hotDQ | |||||||
| Effective temperature | [K] | 8453.0 (48) | 8367.0 (49) | 9730.0 (49) | 8099.0 (64) | 10114.0 (49) | 10139.0 (69) | |||||||||
| log(g) | [cgs] | 8.59 (0.008) | 8.58 (0.009) | 8.90 (0.02) | 8.53 (0.01) | 8.71 (0.2) | 8.31 (0.2) | |||||||||
| Mass | [M☉] | 0.959 (0.006) | 0.956 (0.008) | 1.139 (0.01) | 0.92 (0.01) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 2.7600 | 2.3660 (0.02) | |||||||||||||
| log(H/He) | ||||||||||||||||
| log(C/He) | -4.07 | -4.26 | ||||||||||||||
| 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] | 17.33 (0.09) | 17.48 (0.1) | 17.79 (0.3) | 17.48 (0.1) | 17.33 | 17.33 (0.09) | 17.48 (0.1) | 12.30 (5) | |||||||
| Distance | [pc] | 57.70 (0.3) | 57.21 (0.5) | 56.21 (1) | 57.20 (0.4) | 57.70 | 57.70 (0.3) | 57.20 (0.4) | 81.30 (36) | |||||||
| Composition | He | He | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -1019.310905 (0.07) | -1019.194654 (0.1) | -1019.311 (0.07) | -1019.194654 | -1020.3 | ||||||||||
| Proper motion (declination) | [mas/yr] | -1462.48766 (0.08) | -1462.529939 (0.2) | -1462.488 (0.08) | -1462.529939 | -1466.6 | ||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 17.50 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 17.30 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 17.74 (0.008) | |||||||||||||||
| H magnitude | ||||||||||||||||
| K magnitude | 17.96 (0.02) | |||||||||||||||
| u magnitude | 17.78 (0.01) | 17.75 (0.01) | 17.78 (0.01) | 17.78 (0.01) | 17.80 (0.03) | 17.79 | 17.80 (0.03) | |||||||||
| g magnitude | 17.77 (0.005) | 17.77 (0.005) | 17.77 (0.005) | 17.76 (0.04) | 17.76 | 17.79 (0.04) | ||||||||||
| r magnitude | 17.70 (0.006) | 17.70 (0.006) | 17.70 (0.006) | 17.68 (0.01) | 17.68 | 17.70 (0.01) | ||||||||||
| i magnitude | 17.73 (0.007) | 17.73 (0.007) | 17.73 (0.007) | 17.71 (0.02) | 17.71 | 17.73 (0.02) | ||||||||||
| z magnitude | 17.89 (0.02) | 17.89 (0.02) | 17.89 (0.02) | 17.87 (0.03) | 17.87 | 17.90 (0.03) | ||||||||||
| G magnitude | 17.64 (0.008) | 17.68 | 17.64 | 17.64 (0.003) | 17.68 | |||||||||||
| BP magnitude | 17.73 (0.008) | 17.68 | 17.68 | |||||||||||||
| RP magnitude | 17.44 (0.007) | 17.45 | 17.45 | |||||||||||||
| Pan g magnitude | 17.78 (0.02) | 17.78 (0.02) | ||||||||||||||
| Pan r magnitude | 17.70 (0.005) | 17.70 (0.005) | ||||||||||||||
| Pan i magnitude | 17.76 (0.001) | 17.76 (0.001) | ||||||||||||||
| Pan z magnitude | 17.92 (0.007) | 17.92 (0.009) | ||||||||||||||
| Pan y magnitude | 18.04 (0.03) | 18.04 (0.03) | ||||||||||||||
| E(B-V) | 0.003 | |||||||||||||||
* 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.