All names: GALEX J122422.1+202235, Gaia DR2 3952071542473161472, SDSS J122422.09+202235.54, Gaia DR3 3952071542473161472, Gaia EDR3 3952071542473161472, SDSS J122422.09+202235.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 12 24 22.07 (1) | 12 24 22.10 | 12 24 22.09 (1) | |||
| Declination | 20 22 35.63 (1) | 20 22 35.50 | 20 22 35.60 (1) | |||
| Spectral type | DA | DA | ||||
| Effective temperature | [K] | 6356.0 (71) | ||||
| log(g) | [cgs] | 8.10 (0.1) | ||||
| Mass | [M☉] | 0.648 (0.07) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | -5.46 (1) | ||||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -14.99341701 (1) | -14.993 (1) | |||
| Proper motion (declination) | [mas/yr] | 2.24401868 (1) | 2.244 (1) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 19.64 (0.03) | 19.70 (0.03) | 19.70 (0.03) | |||
| g magnitude | 19.33 (0.01) | 19.37 (0.02) | 19.37 (0.02) | |||
| r magnitude | 19.34 (0.01) | 19.38 (0.02) | 19.38 (0.02) | |||
| i magnitude | 19.41 (0.01) | 19.48 (0.02) | 19.48 (0.02) | |||
| z magnitude | 19.59 (0.05) | 19.64 (0.05) | 19.64 (0.05) | |||
| G magnitude | 19.74 (0.03) | 19.74 (0.02) | ||||
| BP magnitude | 19.35 (0.03) | |||||
| RP magnitude | 19.17 (0.05) | |||||
| Pan g magnitude | 19.30 (0.007) | |||||
| Pan r magnitude | 19.34 (0.008) | |||||
| Pan i magnitude | 19.44 (0.01) | |||||
| Pan z magnitude | 19.56 (0.02) | |||||
| Pan y magnitude | 19.57 (0.04) | |||||
| E(B-V) | ||||||
* 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.