All names: SDSS J122850.47-022509.4, Gaia DR2 3693745408696829568, Gaia EDR3 3693745408696829568, SDSS J122850.46-022509.4, TIC 130589980, GALEX J122850.4-022509, 2MASS J12285046-0225100, WD 1226-021, Gaia DR3 3693745408696829568
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 12 28 50.46 (0.2) | 12 28 50.46 (0.2) | 12 28 50.47 (0.2) | 12 28 50.09 | |||
| Declination | -02 25 09.57 (0.1) | -02 25 09.56 (0.2) | -02 25 09.45 (0.1) | -02 25 05.16 | |||
| Spectral type | DA+K | DA3.3 K | |||||
| 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] | 0.98 (0.3) | 0.83 (0.3) | 0.98 (0.3) | |||
| Distance | [pc] | 1019.03 (282) | 1206.42 (430) | 1019.06 (282) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -7.218398982 (0.3) | -7.98 (0.6) | -7.218 (0.3) | |||
| Proper motion (declination) | [mas/yr] | -7.549673358 (0.2) | -7.295 (0.3) | -7.55 (0.2) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | yes | ||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.63 (0.1) | ||||||
| H magnitude | 15.60 (0.1) | ||||||
| K magnitude | 15.51 (0.2) | ||||||
| u magnitude | 20.77 (0.07) | 20.75 | |||||
| g magnitude | 19.62 (0.01) | 19.62 | |||||
| r magnitude | 18.52 (0.009) | 18.54 | |||||
| i magnitude | 17.96 (0.008) | 17.97 | |||||
| z magnitude | 17.61 (0.02) | 17.59 | |||||
| G magnitude | 18.57 (0.03) | 18.57 | 18.57 (0.003) | ||||
| BP magnitude | 19.25 (0.03) | 19.15 | |||||
| RP magnitude | 17.59 (0.01) | 17.58 | |||||
| Pan g magnitude | 19.49 (0.02) | ||||||
| Pan r magnitude | 18.52 (0.007) | ||||||
| Pan i magnitude | 17.97 (0.004) | ||||||
| Pan z magnitude | 17.73 (0.006) | ||||||
| Pan y magnitude | 17.57 (0.01) | ||||||
| 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.