All names: GALEX J164623.9+344607, SDSSJ164623.93+344608.0, Gaia DR3 1326905132210544512, SDSS J164623.93+344608.0, UCAC4 624-051579, 2MASS J16462393+3446079, Gaia DR2 1326905132210544512, LAMOST J164623.93+344607.9
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 46 23.93 | 16 46 23.94 (0.03) | ||
| Declination | 34 46 08.00 | 34 46 08.12 (0.03) | ||
| Spectral type | sdOB+MS | sdB0He5+F/K | ||
| 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] | 0.32 (0.05) | 0.24 (0.04) | |
| Distance | [pc] | 3116.24 (474) | 4120.31 (642) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.999 (0.08) | -0.887 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.568 (0.1) | -3.618 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.68 (0.07) | |||
| V magnitude | 16.78 (0.01) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.05 (0.1) | 16.05 (0.1) | ||
| H magnitude | 15.91 (0.2) | 15.91 (0.2) | ||
| K magnitude | 15.48 | |||
| u magnitude | 16.77 (0.008) | 16.77 (0.008) | ||
| g magnitude | 16.58 (0.004) | 16.74 (0.01) | ||
| r magnitude | 16.63 (0.005) | 16.55 (0.01) | ||
| i magnitude | 16.68 (0.005) | 16.68 (0.005) | ||
| z magnitude | 16.78 (0.01) | 16.78 (0.01) | ||
| G magnitude | 16.56 (0.001) | 16.54 (0.003) | ||
| BP magnitude | 16.59 (0.006) | |||
| RP magnitude | 16.35 (0.003) | |||
| Pan g magnitude | 16.62 (0.002) | |||
| Pan r magnitude | 16.65 (0.005) | |||
| Pan i magnitude | 16.70 (0.003) | |||
| Pan z magnitude | 16.76 (0.002) | |||
| Pan y magnitude | 16.81 (0.007) | |||
| 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.