All names: GALEX J112731.9-085258, SDSS J112731.88-085259.5, Gaia EDR3 3591121318391238016, Gaia DR2 3591121322685766528, Gaia DR3 3591121322685766528, WD 1124-086
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 11 27 31.94 (0.2) | 11 27 31.95 | 11 27 31.88 (1) | 11 27 31.90 (0.8) | 11 27 31.25 | ||
| Declination | -08 53 00.59 (0.1) | -08 53 00.43 | -08 52 59.67 (0.5) | -08 52 59.60 (0.4) | -08 53 01.32 | ||
| Spectral type | D | WD+M2 | |||||
| Effective temperature | [K] | ||||||
| log(g) | [cgs] | ||||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 2.05 (0.2) | 1.88 (0.8) | 1.19 (0.7) | |||
| Distance | [pc] | 486.82 (39) | 531.84 (219) | 837.59 (456) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -22.98459883 (0.2) | -25.05008456 (2) | -24.368 (0.9) | |||
| Proper motion (declination) | [mas/yr] | -4.593637527 (0.1) | -5.308814118 (1) | -4.354 (0.6) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | yes | ||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 22.23 (0.3) | 20.40 (0.06) | 24.68 | ||||
| g magnitude | 19.93 (0.02) | 20.62 (0.03) | 20.79 | ||||
| r magnitude | 18.68 (0.01) | 21.77 (0.1) | 18.97 | ||||
| i magnitude | 17.57 (0.007) | 24.36 (1) | 17.69 | ||||
| z magnitude | 16.95 (0.01) | 22.83 (1) | 17.14 | ||||
| G magnitude | 18.37 (0.05) | 20.24 | 20.19 (0.009) | ||||
| BP magnitude | 19.35 (0.05) | ||||||
| RP magnitude | 17.22 (0.008) | ||||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.026 | ||||||
* 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.