All names: 2MASS J18001886+3628563, GSC 02633-01952, TD1 32715, PG1758+364, Gaia DR2 4609493459100758400, HIP 88156, Gaia DR3 4609493459100758400, [CW83] 1758+36, Gaia EDR3 4609493459100758400, HIDDEN NAME PG 1758+364, HIC 88156, TYC 2633-1952-1, UCAC2 44502592, TIC 159980021
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 18 00 18.82 (0.03) | 18 00 18.85 | 18 00 18.86 (0.03) | ||
| Declination | 36 28 56.44 (0.03) | 36 28 56.30 | 36 28 56.34 (0.03) | ||
| Spectral type | sdB | sdB0 | |||
| Effective temperature | [K] | 34600.0 (1100) | |||
| log(g) | [cgs] | 5.79 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 5.14 (0.04) | 5.28 (0.05) | 5.14 (0.04) | |
| Distance | [pc] | 194.48 (2) | 189.53 (2) | 194.48 (2) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -29.885 (0.04) | -30.053 (0.09) | -29.885 (0.04) | |
| Proper motion (declination) | [mas/yr] | 6.757 (0.04) | 6.985 (0.1) | 6.757 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 11.17 (0.05) | ||||
| V magnitude | 11.39 (0.09) | ||||
| R magnitude | 11.38 | ||||
| I magnitude | |||||
| J magnitude | 11.96 (0.02) | 11.96 (0.02) | |||
| H magnitude | 12.12 (0.02) | 12.12 (0.02) | |||
| K magnitude | 12.23 (0.02) | 12.23 (0.02) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 11.30 (0.003) | 11.31 (0.0008) | 11.30 (0.003) | ||
| BP magnitude | 11.16 (0.003) | 11.11 (0.007) | |||
| RP magnitude | 11.59 (0.004) | 11.59 (0.002) | |||
| Pan g magnitude | 11.01 | ||||
| Pan r magnitude | 11.52 | ||||
| Pan i magnitude | 11.89 | ||||
| Pan z magnitude | 12.21 | ||||
| Pan y magnitude | 12.41 (0.002) | ||||
| E(B-V) | 0.023 | ||||
* 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.