All names: TYC 6903-1747-1, TIC 209134081, CPD-28 7053, HIC 97962, HD188112, WDJ195431.42-282020.68, HD 188112, YZ 118 13064, PPM 270420, Gaia DR2 6753413448178338944, 2MASS J19543141-2820207, GSC 06903-01747, GEN# +1.00188112, Gaia DR3 6753413448178338944, SBC9 3419, Gaia EDR3 6753413448178338944, RAVE J195431.4-282021, HIP 97962, SAO 188694, uvby98 100188112, TD1 25617, CD-28 16258
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|
| Right ascension | 19 54 31.46 (0.04) | 19 54 31.39 | 19 54 31.42 (0.04) | 19 54 31.46 | ||
| Declination | -28 20 20.36 (0.04) | -28 20 20.90 | -28 20 20.68 (0.04) | -28 20 20.37 | ||
| Spectral type | sdB+WD | sdB | ||||
| Effective temperature | [K] | 21500.0 (500) | ||||
| log(g) | [cgs] | 5.66 (0.06) | ||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 13.97 (0.05) | 13.69 (0.08) | 13.97 (0.05) | 13.69 (0.08) | |
| Distance | [pc] | 71.56 (0.3) | 73.05 (0.4) | 71.56 (0.3) | 73.05 (0.4) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 32.32539895 (0.05) | 32.314 (0.1) | 32.325 (0.05) | 32.313727 | |
| Proper motion (declination) | [mas/yr] | 20.12994516 (0.04) | 20.101 (0.07) | 20.13 (0.04) | 20.10114905 | |
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 10.01 (0.03) | |||||
| V magnitude | 10.22 (0.04) | |||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 10.67 (0.02) | 10.67 (0.02) | ||||
| H magnitude | 10.78 (0.02) | 10.78 (0.02) | ||||
| K magnitude | 10.84 (0.02) | 10.84 (0.02) | ||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 10.17 (0.001) | 10.17 (0.0007) | 10.17 (0.003) | 10.17 | ||
| BP magnitude | 10.05 (0.001) | 10.06 (0.002) | 10.06 | |||
| RP magnitude | 10.38 (0.0005) | 10.38 (0.001) | 10.38 | |||
| Pan g magnitude | 9.94 | |||||
| Pan r magnitude | 10.37 | |||||
| Pan i magnitude | 10.71 | |||||
| Pan z magnitude | 10.97 | |||||
| Pan y magnitude | 11.18 | |||||
| E(B-V) | 0.003 | |||||
* 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.