All names: SDSS J090516.98+031604.9, WD 0902+034, Gaia EDR3 577571774444224640, SDSS J090516.97+031604.8, LAMOST J090516.97+031604.8, Gaia DR3 577571774444224640, SDSS J090516.97+031604.9, GALEX J090516.9+031605, SDSS J090516.96+031604.8, Gaia DR2 577571774444224640
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 05 16.95 (0.09) | 09 05 16.97 | 09 05 16.95 (0.1) | 09 05 16.95 | 09 05 16.97 (0.09) | 09 05 16.97 | 09 05 16.46 | 09 05 16.98 | |||||
| Declination | 03 16 04.98 (0.08) | 03 16 04.96 | 03 16 04.98 (0.1) | 03 16 04.98 | 03 16 05.01 (0.08) | 03 16 04.95 | 03 15 59.04 | 03 16 04.89 | |||||
| Spectral type | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 19920.0 (200) | 17714.0 (671) | 18414.0 (114) | 19550.0 (137) | ||||||||
| log(g) | [cgs] | 7.85 (0.03) | 7.92 (0.04) | 7.81 (0.02) | 7.86 (0.02) | ||||||||
| Mass | [M☉] | 0.54 (0.02) | 0.574 (0.03) | 0.553 (0.009) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0501 | |||||||||||
| 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] | 4.86 (0.1) | 4.82 (0.2) | 4.86 | 4.86 (0.1) | ||||||||
| Distance | [pc] | 205.57 (4) | 207.35 (7) | 205.57 | 205.57 (4) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.40849343 (0.1) | -17.43261439 (0.3) | -17.408 (0.1) | -11.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -1.976078356 (0.08) | -2.000981316 (0.3) | -1.976 (0.09) | -8.9 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.92 (0.04) | ||||||||||||
| H magnitude | 17.99 (0.08) | ||||||||||||
| K magnitude | 18.20 (0.2) | ||||||||||||
| u magnitude | 17.40 (0.009) | 17.40 (0.009) | 17.41 (0.02) | 17.40 | 17.44 (0.02) | ||||||||
| g magnitude | 17.27 (0.005) | 17.27 (0.005) | 17.30 (0.02) | 17.29 | 17.31 (0.02) | ||||||||
| r magnitude | 17.59 (0.005) | 17.59 (0.005) | 17.60 (0.02) | 17.59 | 17.60 (0.02) | ||||||||
| i magnitude | 17.90 (0.007) | 17.89 (0.007) | 17.89 (0.02) | 17.87 | 17.89 (0.02) | ||||||||
| z magnitude | 18.19 (0.02) | 18.19 (0.02) | 18.20 (0.02) | 18.18 | 18.20 (0.02) | ||||||||
| G magnitude | 17.45 (0.007) | 17.49 | 17.45 | 17.45 (0.003) | |||||||||
| BP magnitude | 17.40 (0.007) | 17.36 | |||||||||||
| RP magnitude | 17.62 (0.01) | 17.61 | |||||||||||
| Pan g magnitude | 17.33 (0.005) | ||||||||||||
| Pan r magnitude | 17.62 (0.003) | ||||||||||||
| Pan i magnitude | 17.92 (0.009) | ||||||||||||
| Pan z magnitude | 18.17 (0.007) | ||||||||||||
| Pan y magnitude | 18.35 (0.02) | ||||||||||||
| E(B-V) | 0.016 | ||||||||||||
* 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.