All names: KPD 2045+3436, Gaia DR2 1869491859722639872, UCAC4 624-101511, Gaia DR3 1869491859722639872, KPD2045+3436, 2MASS J20470741+3447018, TIC 232908914
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 47 07.51 | 20 47 07.41 (0.02) | ||
| Declination | 34 47 02.51 | 34 47 01.98 (0.02) | ||
| Spectral type | sdB | 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] | 0.18 (0.04) | 0.28 (0.03) | |
| Distance | [pc] | 5595.97 (1202) | 3633.72 (386) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.669 (0.06) | -4.514 (0.03) | |
| Proper motion (declination) | [mas/yr] | -7.18 (0.06) | -7.232 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.73 (0.05) | |||
| V magnitude | 15.77 (0.01) | |||
| R magnitude | 15.84 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.70 (0.07) | 15.70 (0.07) | ||
| H magnitude | 15.68 (0.1) | 15.68 (0.1) | ||
| K magnitude | 15.64 (0.2) | 15.64 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.59 (0.0006) | 15.57 (0.003) | ||
| BP magnitude | 15.51 (0.004) | |||
| RP magnitude | 15.60 (0.003) | |||
| Pan g magnitude | 15.52 (0.001) | |||
| Pan r magnitude | 15.73 (0.002) | |||
| Pan i magnitude | 15.95 (0.003) | |||
| Pan z magnitude | 16.13 (0.003) | |||
| Pan y magnitude | 16.24 (0.003) | |||
| E(B-V) | 0.292 | |||
* 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.