All names: GALEX J232221.0-011856, SDSS J232221.03-011858.03, SDSS J232221.02-011858.0, Gaia DR3 2643968776358083456, Gaia EDR3 2643968776358083456, Gaia DR2 2643968776358083456, SDSS J232221.03-011858.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 22 21.04 (2) | 23 22 21.03 | 23 22 21.04 (2) | 23 22 21.02 (2) | ||||
| Declination | -01 18 58.11 (2) | -01 18 58.04 | -01 18 58.11 (2) | -01 18 57.98 (2) | ||||
| Spectral type | DA | DA | ||||||
| Effective temperature | [K] | 10906.0 (216) | ||||||
| log(g) | [cgs] | 8.26 (0.1) | ||||||
| Mass | [M☉] | 0.755 (0.07) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.29 (3) | -0.03 (3) | 0.29 (3) | ||||
| Distance | [pc] | 3461.93 (33793) | 3461.41 (33783) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 17.71225325 (2) | 17.67674469 (3) | 17.712 (2) | ||||
| Proper motion (declination) | [mas/yr] | -8.491020489 (2) | -7.190638675 (3) | -8.491 (2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.31 (0.1) | 21.31 (0.1) | 21.31 (0.1) | |||||
| g magnitude | 20.57 (0.02) | 20.59 (0.03) | 20.59 (0.03) | |||||
| r magnitude | 20.68 (0.04) | 20.70 (0.04) | 20.70 (0.04) | |||||
| i magnitude | 20.66 (0.06) | 20.67 (0.06) | 20.67 (0.06) | |||||
| z magnitude | 20.96 (0.3) | 20.99 (0.2) | 20.99 (0.2) | |||||
| G magnitude | 20.64 (0.1) | 20.67 | 20.64 (0.01) | |||||
| BP magnitude | 20.41 (0.1) | 20.46 | ||||||
| RP magnitude | 20.23 (0.2) | 20.25 | ||||||
| Pan g magnitude | 20.56 (0.02) | |||||||
| Pan r magnitude | 20.72 (0.02) | |||||||
| Pan i magnitude | 20.76 (0.05) | |||||||
| Pan z magnitude | 20.91 (0.04) | |||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.041 | |||||||
* 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.