All names: WISE J221523.77+173132.1, TIC 404457323, UCAC4 538-149028, UCAC2 38180821, Gaia EDR3 1775448431155521408, PG2212+173, Gaia DR3 1775448431155521408, PG 2212+173, 2MASS J22152379+1731321, WISEA J221523.78+173132.0, SDSS J221523.78+173132.1, GALEX J221523.7+173132, Gaia DR2 1775448431155521408
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 15 23.78 (0.04) | 22 15 23.80 | 22 15 23.79 (0.04) | ||
| Declination | 17 31 32.11 (0.04) | 17 31 32.62 | 17 31 32.23 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.59 (0.05) | 0.70 (0.06) | 0.59 (0.05) | |
| Distance | [pc] | 1686.63 (140) | 1432.46 (125) | 1686.63 (140) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -3.949 (0.05) | -3.823 (0.09) | -3.949 (0.05) | |
| Proper motion (declination) | [mas/yr] | -7.517 (0.05) | -7.522 (0.09) | -7.517 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.20 (0.05) | ||||
| V magnitude | 15.28 (0.03) | ||||
| R magnitude | 15.60 (0.03) | ||||
| I magnitude | |||||
| J magnitude | 15.70 (0.07) | 15.70 (0.07) | |||
| H magnitude | 16.16 (0.2) | 16.16 (0.2) | |||
| K magnitude | 15.47 (0.2) | 15.47 (0.2) | |||
| u magnitude | 14.90 (0.004) | ||||
| g magnitude | 15.05 (0.003) | 15.25 (0.09) | |||
| r magnitude | 15.51 (0.004) | 15.52 (0.09) | |||
| i magnitude | 15.83 (0.004) | ||||
| z magnitude | 16.11 (0.008) | ||||
| G magnitude | 15.28 (0.003) | 15.30 (0.0009) | 15.28 (0.003) | ||
| BP magnitude | 15.15 (0.004) | 15.12 (0.007) | |||
| RP magnitude | 15.53 (0.005) | 15.54 (0.005) | |||
| Pan g magnitude | 15.12 (0.004) | ||||
| Pan r magnitude | 15.53 (0.003) | ||||
| Pan i magnitude | 15.86 (0.004) | ||||
| Pan z magnitude | 16.12 (0.002) | ||||
| Pan y magnitude | 16.29 (0.007) | ||||
| E(B-V) | 0.042 | ||||
* 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.