All names: GALEX J173211.7+083908, Gaia DR3 4490665281819861888, Gaia DR2 4490665281819861888, SDSS J173211.75+083909.0, Gaia EDR3 4490666209532824704, SDSSJ173211.75+083909.0
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Simbad |
|---|---|---|---|---|
| Right ascension | 17 32 07.54 (0.3) | 17 32 11.75 | 17 32 11.75 (0.08) | |
| Declination | 08 40 33.48 (0.3) | 08 39 09.00 | 08 39 09.02 (0.08) | |
| 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] | 3.25 (0.5) | -0.28 (0.2) | |
| Distance | [pc] | 307.50 (45) | ||
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.672 (0.4) | -5.201 (0.4) | -5.2 (0.1) |
| Proper motion (declination) | [mas/yr] | 10.203 (0.3) | -1.764 (0.4) | -1.495 (0.09) |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 18.19 (0.01) | 18.19 (0.01) | ||
| g magnitude | 17.89 (0.006) | 17.89 (0.006) | ||
| r magnitude | 18.16 (0.007) | 18.16 (0.007) | ||
| i magnitude | 18.37 (0.01) | 18.37 (0.01) | ||
| z magnitude | 18.54 (0.03) | 18.54 (0.03) | ||
| G magnitude | 19.91 (0.005) | 18.04 (0.002) | 18.01 (0.003) | |
| BP magnitude | 20.09 (0.06) | 17.98 (0.01) | ||
| RP magnitude | 19.65 (0.09) | 18.04 (0.02) | ||
| Pan g magnitude | 17.93 (0.004) | |||
| Pan r magnitude | 18.16 (0.006) | |||
| Pan i magnitude | 18.37 (0.003) | |||
| Pan z magnitude | 18.53 (0.009) | |||
| Pan y magnitude | 18.65 (0.05) | |||
| E(B-V) | ||||
* 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.