All names: UCAC4 201-188969, Gaia DR3 6667228748927775232, Gaia DR2 6667228748927775232, TIC 101545865, EC20041-5007, 2MASS J20075143-4959012, GALEX J200751.3-495900, EC 20041-5007
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 07 51.32 | 20 07 51.44 (0.03) | ||
| Declination | -49 59 01.18 | -49 59 01.20 (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] | 0.28 (0.06) | 0.33 (0.04) | |
| Distance | [pc] | 3593.24 (762) | 3006.61 (337) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.979 (0.09) | -3.106 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.931 (0.06) | -10.017 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.64 (0.03) | |||
| V magnitude | 15.65 (0.01) | |||
| R magnitude | 15.57 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.06 (0.04) | 15.06 (0.04) | ||
| H magnitude | 14.93 (0.07) | 14.93 (0.07) | ||
| K magnitude | 14.83 (0.1) | 14.83 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.61 (0.01) | |||
| r magnitude | 15.58 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.58 (0.0005) | 15.56 (0.003) | ||
| BP magnitude | 15.63 (0.005) | |||
| RP magnitude | 15.39 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.028 | |||
* 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.