All names: KIC 10449976, GALEXJ18472+4741, Gaia DR2 2119622714845280000, TIC 123414355, GALEX J184714.0+474147, Gaia DR3 2119622714845280000, EQ J1847.2+4741, 2MASS J18471411+4741468, GALEX J184714.0+474146
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 47 13.90 | 18 47 14.12 (0.03) | ||
| Declination | 47 41 46.20 | 47 41 46.79 (0.03) | ||
| Spectral type | He-sdOB | sdOBHe | ||
| 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] | 0.63 (0.03) | 0.59 (0.03) | |
| Distance | [pc] | 1591.09 (84) | 1708.53 (87) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.079 (0.07) | -2.964 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.467 (0.06) | -2.461 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.39 (0.04) | 15.39 (0.04) | ||
| H magnitude | 15.62 (0.1) | 15.62 (0.1) | ||
| K magnitude | 15.47 (0.2) | 15.47 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.72 (0.0007) | 14.70 (0.003) | ||
| BP magnitude | 14.47 (0.005) | |||
| RP magnitude | 14.98 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | 18.47 (0.02) | |||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.038 | |||
* 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.