All names: WDJ104452.74+264538.55, SDSS J104452.75+264538.1, Gaia DR3 730811362842136704, Gaia DR2 730811362842136704, J1044+2645, LAMOST J104452.75+264538.2, SDSS J104452.76+264538.2, Gaia EDR3 730811362842136704, SDSS J104452.75+264538.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Gaia DR2 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 44 52.78 (0.09) | 10 44 52.76 | 10 44 52.78 (0.1) | 10 44 52.78 | 10 44 52.74 (0.09) | 10 44 52.78 | 10 44 52.76 | ||||||
| Declination | 26 45 37.08 (0.08) | 26 45 38.19 | 26 45 37.13 (0.2) | 26 45 37.08 | 26 45 38.55 (0.08) | 26 45 37.13 | 26 45 38.22 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA | |||||||
| Effective temperature | [K] | 8391.0 (67) | 8389.0 (155) | 8052.0 (39) | |||||||||
| log(g) | [cgs] | 8.13 (0.03) | 8.13 (0.03) | 8.00 (0.07) | |||||||||
| Mass | [M☉] | 0.678 (0.02) | 0.674 (0.03) | 0.596 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.2000 | |||||||||||
| 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] | 11.33 (0.1) | 11.39 (0.2) | 11.39 (0.2) | 11.33 | 11.33 (0.1) | 11.39 (0.2) | ||||||
| Distance | [pc] | 88.27 (0.8) | 87.80 (2) | 87.79 (2) | 88.27 | 88.27 (0.8) | 87.79 (2) | ||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 36.07860464 (0.1) | 35.82920913 (0.4) | 36.079 (0.1) | 35.82920913 | ||||||||
| Proper motion (declination) | [mas/yr] | -91.67257973 (0.1) | -91.76873805 (0.6) | -91.673 (0.1) | -91.76873805 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.35 (0.03) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 18.21 (0.01) | 18.21 (0.01) | 18.21 (0.01) | 18.21 (0.01) | 18.23 (0.02) | ||||||||
| g magnitude | 17.79 (0.005) | 17.79 (0.005) | 17.79 (0.005) | 17.80 (0.02) | |||||||||
| r magnitude | 17.75 (0.006) | 17.75 (0.006) | 17.75 (0.006) | 17.75 (0.01) | |||||||||
| i magnitude | 17.78 (0.007) | 17.78 (0.007) | 17.78 (0.007) | 17.78 (0.02) | |||||||||
| z magnitude | 17.85 (0.02) | 17.85 (0.02) | 17.85 (0.02) | 17.86 (0.02) | |||||||||
| G magnitude | 17.69 (0.01) | 17.71 | 17.69 | 17.69 (0.003) | 17.71 | ||||||||
| BP magnitude | 17.81 (0.01) | 17.81 | 17.81 | ||||||||||
| RP magnitude | 17.48 (0.01) | 17.49 | 17.49 | ||||||||||
| Pan g magnitude | 17.77 (0.007) | 17.77 (0.006) | |||||||||||
| Pan r magnitude | 17.74 (0.005) | 17.74 (0.005) | |||||||||||
| Pan i magnitude | 17.79 (0.005) | 17.79 (0.006) | |||||||||||
| Pan z magnitude | 17.89 (0.007) | 17.89 (0.007) | |||||||||||
| Pan y magnitude | 17.97 (0.02) | 17.97 (0.02) | |||||||||||
| E(B-V) | 0.004 | ||||||||||||
* 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.