All names: Ruiz 496-513, Gaia DR3 5649105926779602432, J0855-2637, WDJ085551.03-263750.20, TIC 2224750, 2MASS J08555102-2637498, Gaia EDR3 5649105926779602432, WD 0853-264.2, GALEX J085550.8-263748, RUIZ 496-513, USNO-B1.0 0633-00254483, Gaia DR2 5649105926779602432
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 55 50.99 (0.04) | 08 55 51.00 (0.05) | 08 55 50.99 | 08 55 51.03 (0.04) | 08 55 51.00 | 08 55 55.63 | ||||
| Declination | -26 37 52.13 (0.04) | -26 37 52.07 (0.06) | -26 37 52.13 | -26 37 50.21 (0.04) | -26 37 52.07 | -26 37 50.52 | ||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 8035.0 (30) | 7919.0 (55) | |||||||
| log(g) | [cgs] | 8.14 (0.008) | 8.11 (0.01) | |||||||
| Mass | [M☉] | 0.68 (0.007) | 0.659 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.3500 | ||||||||
| 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] | 18.72 (0.05) | 18.69 (0.08) | 18.69 (0.08) | 18.72 | 18.72 (0.05) | 18.69 (0.08) | |||
| Distance | [pc] | 53.41 (0.2) | 53.50 (0.2) | 53.52 (0.2) | 53.41 | 53.41 (0.2) | 53.52 (0.2) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -32.98829552 (0.05) | -33.07387777 (0.1) | -32.988 (0.05) | -33.07387777 | |||||
| Proper motion (declination) | [mas/yr] | -120.2557158 (0.05) | -120.4351275 (0.1) | -120.256 (0.05) | -120.4351275 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | yes | |||||||||
| B magnitude | 15.10 | |||||||||
| V magnitude | 16.97 | |||||||||
| R magnitude | 15.40 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.31 (0.01) | 16.17 (0.09) | ||||||||
| H magnitude | 16.20 (0.2) | 16.20 (0.2) | ||||||||
| K magnitude | 16.24 (0.04) | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.77 (0.006) | 16.79 | 16.77 | 16.77 (0.003) | 16.79 | |||||
| BP magnitude | 16.91 (0.006) | 16.89 | 16.89 | |||||||
| RP magnitude | 16.53 (0.005) | 16.52 | 16.52 | |||||||
| Pan g magnitude | 16.90 (0.002) | 16.90 (0.002) | ||||||||
| Pan r magnitude | 16.82 (0.002) | 16.82 (0.002) | ||||||||
| Pan i magnitude | 16.84 (0.003) | 16.84 (0.003) | ||||||||
| Pan z magnitude | 16.94 (0.01) | 16.94 (0.01) | ||||||||
| Pan y magnitude | 17.01 (0.006) | 17.01 (0.006) | ||||||||
| 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.