All names: GALEX J224311.6-000440, PB 5138, SDSS J224311.67-000441.9, 2MASS J22431165-0004425, TIC 250327529, PHL 385, SDSS J224311.68-000442.0, SDSS J224311.67-000442.0, SDSSJ224311.68-000442.0, UCAC4 450-136260, Gaia DR3 2653544977175287936, Gaia EDR3 2653544977175287936, Gaia DR2 2653544977174973824
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 43 11.68 (0.05) | 22 43 11.68 | 22 43 11.68 | 22 43 11.68 (0.1) | 22 43 11.68 (0.05) | 22 43 11.68 | |||
| Declination | -00 04 42.05 (0.04) | -00 04 42.00 | -00 04 41.99 | -00 04 42.05 (0.07) | -00 04 42.03 (0.04) | -00 04 41.97 | |||
| Spectral type | sdB | sdB | SD_auto | ||||||
| Effective temperature | [K] | 27870.0 (1117) | 28620.0 (130) | ||||||
| log(g) | [cgs] | 5.48 (0.2) | 5.26 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.63 (0.06) | 0.72 (0.2) | 0.72 (0.2) | 0.63 (0.06) | ||||
| Distance | [pc] | 1581.46 (151) | 1394.70 (441) | 1394.78 (441) | 1581.53 (151) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 2.472681765 (0.07) | 2.403 (0.1) | 2.402551697 (0.1) | 2.473 (0.07) | 0.5 | |||
| Proper motion (declination) | [mas/yr] | -1.224720975 (0.05) | -1.224 (0.2) | -1.223843723 (0.2) | -1.225 (0.05) | -2.2 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.46 (0.04) | ||||||||
| V magnitude | 15.64 (0.01) | ||||||||
| R magnitude | 16.01 (0.2) | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.09 (0.08) | 16.09 (0.08) | |||||||
| H magnitude | 16.21 (0.2) | 16.21 (0.2) | |||||||
| K magnitude | 15.74 (0.2) | 15.74 (0.2) | |||||||
| u magnitude | 15.26 (0.004) | 15.26 (0.004) | 15.26 (0.004) | 15.28 (0.02) | |||||
| g magnitude | 15.36 (0.003) | 15.36 (0.003) | 15.37 (0.003) | 15.41 (0.01) | |||||
| r magnitude | 15.78 (0.005) | 15.78 (0.005) | 15.80 (0.005) | 15.82 (0.01) | |||||
| i magnitude | 16.13 (0.005) | 16.13 (0.005) | 16.14 (0.005) | 16.16 (0.01) | |||||
| z magnitude | 16.43 (0.009) | 16.43 (0.009) | 16.46 (0.009) | 16.43 (0.02) | |||||
| G magnitude | 15.63 (0.004) | 15.64 (0.001) | 15.64 | 15.63 (0.003) | |||||
| BP magnitude | 15.52 (0.004) | 15.46 (0.009) | 15.46 | ||||||
| RP magnitude | 15.85 (0.006) | 15.83 (0.006) | 15.83 | ||||||
| Pan g magnitude | 15.47 (0.003) | 15.47 (0.003) | |||||||
| Pan r magnitude | 15.85 (0.003) | 15.85 (0.003) | |||||||
| Pan i magnitude | 16.16 (0.002) | 16.16 (0.002) | |||||||
| Pan z magnitude | 16.41 (0.004) | 16.41 (0.004) | |||||||
| Pan y magnitude | 16.58 (0.006) | 16.58 (0.006) | |||||||
| E(B-V) | 0.055 | ||||||||
* 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.