All names: USNO-B1.0 1310-00349976, KIC 5807616, Kepler-70, KPD 1943+4058, Gaia DR3 2076819620539690880, TIC 184427882, KPD1943+4058, KOI-55, 2MASS J19452546+4105339, Gaia EDR3 2076819620539690880, UCAC3 263-170867, Gaia DR2 2076819620539690880, UCAC2 46165657
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 45 25.48 (0.02) | 19 45 25.45 | 19 45 25.47 (0.02) | ||
| Declination | 41 05 33.83 (0.02) | 41 05 34.64 | 41 05 33.88 (0.02) | ||
| Spectral type | sdBV | 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] | 0.91 (0.02) | 0.79 (0.03) | 0.91 (0.02) | |
| Distance | [pc] | 1100.59 (30) | 1273.89 (51) | 1100.59 (30) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.217 (0.03) | 7.185 (0.06) | 7.217 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.148 (0.03) | -3.134 (0.06) | -3.148 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.71 | ||||
| V magnitude | 14.87 | ||||
| R magnitude | 15.43 (0.2) | ||||
| I magnitude | 15.72 (0.5) | ||||
| J magnitude | 15.36 (0.04) | 15.36 (0.04) | |||
| H magnitude | 15.59 (0.1) | 15.59 (0.1) | |||
| K magnitude | 15.49 | 15.49 | |||
| u magnitude | |||||
| g magnitude | 14.73 | ||||
| r magnitude | |||||
| i magnitude | 15.45 | ||||
| z magnitude | |||||
| G magnitude | 14.89 (0.003) | 14.91 (0.0006) | 14.89 (0.003) | ||
| BP magnitude | 14.79 (0.003) | 14.75 (0.007) | |||
| RP magnitude | 15.07 (0.004) | 15.07 (0.002) | |||
| Pan g magnitude | 14.76 (0.004) | ||||
| Pan r magnitude | 15.12 (0.005) | ||||
| Pan i magnitude | 15.42 (0.003) | ||||
| Pan z magnitude | 15.65 (0.003) | ||||
| Pan y magnitude | 15.80 (0.004) | ||||
| E(B-V) | 0.112 | ||||
* 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.