All names: SDSS J173606.25+315842.7, SDSSJ173606.25+315842.7, SDSS J173606.25+315842.6, Gaia DR3 4600926644314868992, GALEX J173606.2+315842, Gaia EDR3 4600926644314868992, Gaia DR2 4600926644314868992
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 36 06.25 (0.04) | 17 36 06.25 | 17 36 06.25 (0.04) | ||
| Declination | 31 58 42.59 (0.04) | 31 58 42.70 | 31 58 42.71 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 31300.0 (300) | |||
| log(g) | [cgs] | 5.87 (0.09) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.44 (0.05) | 0.46 (0.07) | 0.44 (0.05) | |
| Distance | [pc] | 2250.23 (262) | 2172.02 (317) | 2250.23 (262) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.678 (0.05) | -0.698 (0.1) | -0.678 (0.05) | |
| Proper motion (declination) | [mas/yr] | -7.288 (0.06) | -7.426 (0.1) | -7.288 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.59 (0.007) | 16.59 (0.007) | |||
| g magnitude | 16.73 (0.004) | 16.73 (0.004) | |||
| r magnitude | 17.25 (0.005) | 17.25 (0.005) | |||
| i magnitude | 17.57 (0.006) | 17.57 (0.006) | |||
| z magnitude | 17.90 (0.02) | 17.90 (0.02) | |||
| G magnitude | 17.01 (0.003) | 17.03 (0.001) | 17.01 (0.003) | ||
| BP magnitude | 16.89 (0.005) | 16.83 (0.006) | |||
| RP magnitude | 17.28 (0.01) | 17.26 (0.01) | |||
| Pan g magnitude | 16.83 (0.006) | ||||
| Pan r magnitude | 17.26 (0.004) | ||||
| Pan i magnitude | 17.59 (0.006) | ||||
| Pan z magnitude | 17.86 (0.01) | ||||
| Pan y magnitude | 17.99 (0.02) | ||||
| E(B-V) | 0.030 | ||||
* 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.