All names: 2MASS J16381062+6217170, TIC 198240464, Gaia DR3 1625482634333259904, SDSS J163810.63+621716.7, GALEXJ16381+6217, AP J16381062+6217170, WISE J163810.64+621716.8, GALEX J163811.0+621717, UCAC4 762-045791, WISEA J163810.63+621716.8, Gaia DR2 1625482634333259904
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 38 11.07 | 16 38 10.63 (0.02) | ||
| Declination | 62 17 17.12 | 62 17 16.97 (0.02) | ||
| Spectral type | sdB+MS | 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] | 1.12 (0.02) | 1.14 (0.02) | |
| Distance | [pc] | 891.03 (13) | 875.50 (15) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.09 (0.03) | 9.561 (0.03) | |
| Proper motion (declination) | [mas/yr] | -23.331 (0.04) | -22.995 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.67 (0.04) | |||
| V magnitude | 13.56 (0.06) | |||
| R magnitude | 13.69 (0.1) | |||
| I magnitude | ||||
| J magnitude | 12.94 (0.03) | 12.94 (0.03) | ||
| H magnitude | 12.70 (0.03) | 12.70 (0.03) | ||
| K magnitude | 12.66 (0.03) | 12.66 (0.03) | ||
| u magnitude | 13.65 (0.003) | |||
| g magnitude | 13.87 (0.008) | 13.57 (0.03) | ||
| r magnitude | 13.58 (0.003) | 13.57 (0.06) | ||
| i magnitude | 13.61 (0.003) | 13.58 (0.06) | ||
| z magnitude | 13.68 (0.003) | |||
| G magnitude | 13.52 (0.0009) | 13.50 (0.003) | ||
| BP magnitude | 13.56 (0.005) | |||
| RP magnitude | 13.31 (0.003) | |||
| Pan g magnitude | 13.61 (0.01) | |||
| Pan r magnitude | 13.62 (0) | |||
| Pan i magnitude | 13.68 (0.0001) | |||
| Pan z magnitude | 13.71 (0.007) | |||
| Pan y magnitude | 13.76 (0.01) | |||
| E(B-V) | 0.022 | |||
* 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.