All names: SDSS J123446.29+083736.2, WD 1232+089, Gaia EDR3 3902802353418553600, LBQS 1232+0854, Gaia DR2 3902802353418553600, Gaia DR3 3902802353418553600, GALEX J123446.3+083736
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 12 34 46.30 (0.1) | 12 34 46.30 (0.2) | 12 34 46.30 (0.1) | 12 34 46.25 | ||
| Declination | 08 37 36.31 (0.1) | 08 37 36.31 (0.1) | 08 37 36.28 (0.1) | 08 37 34.68 | ||
| Spectral type | DA | DA | ||||
| 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] | 3.05 (0.1) | 2.98 (0.2) | 3.05 (0.1) | ||
| Distance | [pc] | 327.72 (16) | 335.71 (21) | 327.73 (16) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -3.209959041 (0.2) | -2.739132239 (0.4) | -3.21 (0.2) | ||
| Proper motion (declination) | [mas/yr] | 2.001174834 (0.2) | 1.857474122 (0.2) | 2.001 (0.2) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 17.98 (0.04) | |||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 18.11 (0.03) | |||||
| g magnitude | 17.91 (0.03) | |||||
| r magnitude | 18.21 (0.07) | |||||
| i magnitude | 18.50 (0.3) | |||||
| z magnitude | 19.20 (0.8) | |||||
| G magnitude | 18.08 | 18.13 | 18.08 (0.004) | |||
| BP magnitude | ||||||
| RP magnitude | ||||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.024 | |||||
* 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.