All names: ZTF J162256.66+473051.1, 2MASS J16225667+4730508, SDSS J162256.66+473051.0, SDSS J162256.66+473051.1, LAMOST J162256.66+473051.1, Gaia DR3 1410860511508492288, TIC 193555713, PG1621+476, PG 1621+476, Gaia DR2 1410860511508492288, UCAC4 688-058109, ATO J245.7360+47.5141, Gaia EDR3 1410860511508492288
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 22 56.66 (0.04) | 16 22 56.67 | 16 22 56.68 | 16 22 56.66 (0.05) | 16 22 56.67 (0.04) | 16 22 56.66 | |||
| Declination | 47 30 51.09 (0.04) | 47 30 51.16 | 47 30 51.23 | 47 30 51.09 (0.06) | 47 30 51.13 (0.04) | 47 30 51.09 | |||
| Spectral type | sdB+BD | sdB+dM | SD_auto | ||||||
| Effective temperature | [K] | 29000.0 (600) | 28636.0 (81) | ||||||
| log(g) | [cgs] | 5.65 (0.06) | 5.41 (0.02) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.55 (0.04) | 0.47 (0.06) | 0.47 (0.06) | 0.55 (0.04) | ||||
| Distance | [pc] | 1813.54 (146) | 2140.41 (257) | 2140.21 (257) | 1813.57 (146) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -3.594903526 (0.05) | -3.406 (0.1) | -3.406494554 (0.1) | -3.595 (0.05) | 3.6 | |||
| Proper motion (declination) | [mas/yr] | -2.452554054 (0.05) | -2.223 (0.1) | -2.223300362 (0.1) | -2.453 (0.05) | -3.9 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.07 (0.1) | ||||||||
| V magnitude | 16.19 (0.02) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.73 (0.1) | 16.73 (0.1) | |||||||
| H magnitude | 17.00 | ||||||||
| K magnitude | 15.60 | ||||||||
| u magnitude | 15.79 (0.005) | 15.79 (0.005) | 15.79 (0.005) | 15.80 (0.01) | |||||
| g magnitude | 15.96 (0.004) | 15.96 (0.004) | 15.96 (0.004) | 15.98 (0.02) | |||||
| r magnitude | 16.45 (0.005) | 16.45 (0.005) | 16.45 (0.005) | 16.44 (0.03) | |||||
| i magnitude | 16.80 (0.005) | 16.80 (0.005) | 16.80 (0.005) | 16.81 (0.02) | |||||
| z magnitude | 17.09 (0.01) | 17.09 (0.01) | 17.09 (0.01) | 17.07 (0.02) | |||||
| G magnitude | 16.22 (0.009) | 16.24 (0.004) | 16.24 | 16.22 (0.004) | |||||
| BP magnitude | 16.09 (0.009) | 16.05 (0.01) | 16.05 | ||||||
| RP magnitude | 16.49 (0.009) | 16.48 (0.01) | 16.48 | ||||||
| Pan g magnitude | 16.05 (0.008) | 16.05 (0.008) | |||||||
| Pan r magnitude | 16.48 (0.01) | 16.48 (0.01) | |||||||
| Pan i magnitude | 16.78 (0.005) | 16.78 (0.005) | |||||||
| Pan z magnitude | 17.05 (0.007) | 17.05 (0.007) | |||||||
| Pan y magnitude | 17.30 (0.009) | 17.30 (0.009) | |||||||
| E(B-V) | 0.019 | ||||||||
* 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.