All names: GALEX J162225.2+233803, 2MASS J16222521+2338044, Gaia EDR3 1301798784919091712, Gaia DR3 1301798784919091712, TIC 359290372, SDSS J162225.22+233804.45, Gaia DR2 1301798784919091712, SDSS J162225.22+233804.5, SDSS J162225.21+233804.5, SDSS J162225.22+233804.4, SDSSJ162225.22+233804.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 22 25.22 (0.02) | 16 22 25.22 | 16 22 25.22 | 16 22 25.22 (0.04) | 16 22 25.22 (0.02) | ||||
| Declination | 23 38 04.37 (0.03) | 23 38 04.53 | 23 38 04.40 | 23 38 04.37 (0.04) | 23 38 04.54 (0.03) | ||||
| Spectral type | sdOB | He-sdB | sdBHe | ||||||
| Effective temperature | [K] | 38054.0 (893) | 39623.0 (374) | ||||||
| log(g) | [cgs] | 6.12 (0.1) | 5.57 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.50 (0.04) | 0.48 (0.06) | 0.48 (0.06) | 0.50 (0.04) | ||||
| Distance | [pc] | 1996.00 (167) | 2072.97 (251) | 2073.16 (251) | 1996.01 (167) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.295010686 (0.03) | -0.29 (0.08) | -0.289889879 (0.08) | -0.295 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | -10.82573938 (0.04) | -10.856 (0.1) | -10.85630561 (0.1) | -10.826 (0.04) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.73 (0.1) | 16.77 (0.01) | |||||||
| H magnitude | 16.50 (0.2) | 16.84 (0.03) | |||||||
| K magnitude | 15.83 | 16.92 (0.06) | |||||||
| u magnitude | 15.67 (0.005) | 15.67 (0.005) | 15.70 (0.02) | 15.67 (0.005) | |||||
| g magnitude | 15.93 (0.004) | 15.93 (0.004) | 15.96 (0.01) | 15.93 (0.004) | |||||
| r magnitude | 16.36 (0.004) | 16.36 (0.004) | 16.35 (0.01) | 16.36 (0.004) | |||||
| i magnitude | 16.68 (0.005) | 16.68 (0.005) | 16.69 (0.01) | 16.68 (0.005) | |||||
| z magnitude | 16.96 (0.01) | 16.96 (0.01) | 16.96 (0.02) | 16.96 (0.01) | |||||
| G magnitude | 16.16 (0.002) | 16.18 (0.001) | 16.18 | 16.16 (0.003) | |||||
| BP magnitude | 16.04 (0.002) | 15.96 (0.008) | 15.96 | ||||||
| RP magnitude | 16.40 (0.003) | 16.39 (0.004) | 16.39 | ||||||
| Pan g magnitude | 16.02 (0.005) | 16.02 (0.005) | |||||||
| Pan r magnitude | 16.39 (0.003) | 16.39 (0.003) | |||||||
| Pan i magnitude | 16.71 (0.003) | 16.71 (0.003) | |||||||
| Pan z magnitude | 16.97 (0.008) | 16.97 (0.008) | |||||||
| Pan y magnitude | 17.15 (0.008) | 17.15 (0.008) | |||||||
| E(B-V) | 0.053 | ||||||||
* 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.