All names: TIC 51577232, UCAC2 28290683, UCAC4 400-131951, GALEX J204529.1-100415, Gaia DR2 6903037846640842112, GALEXJ20454-1004, 2MASS J20452915-1004173, Gaia EDR3 6903037846640842112, WISEA J204529.15-100417.3, Gaia DR3 6903037846640842112, WISE J204529.15-100417.2
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 45 29.14 (0.04) | 20 45 29.20 | 20 45 29.15 (0.04) | ||
| Declination | -10 04 17.13 (0.02) | -10 04 15.52 | -10 04 17.28 (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] | 1.19 (0.04) | 1.20 (0.07) | 1.19 (0.04) | |
| Distance | [pc] | 837.45 (30) | 835.49 (52) | 837.45 (30) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.883 (0.05) | -1.827 (0.1) | -1.883 (0.05) | |
| Proper motion (declination) | [mas/yr] | 9.24 (0.03) | 9.3 (0.07) | 9.24 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.07 (0.01) | ||||
| V magnitude | 14.17 (0.01) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.44 (0.04) | 14.44 (0.04) | |||
| H magnitude | 14.45 (0.05) | 14.45 (0.05) | |||
| K magnitude | 14.39 (0.08) | 14.39 (0.08) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | 14.66 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 14.12 (0.003) | 14.13 (0.0006) | 14.12 (0.003) | ||
| BP magnitude | 14.00 (0.003) | 13.96 (0.005) | |||
| RP magnitude | 14.30 (0.004) | 14.31 (0.002) | |||
| Pan g magnitude | 13.98 (0.003) | ||||
| Pan r magnitude | 14.35 (0.003) | ||||
| Pan i magnitude | 14.66 (0.002) | ||||
| Pan z magnitude | 14.89 (0.003) | ||||
| Pan y magnitude | 15.02 (0.005) | ||||
| E(B-V) | 0.044 | ||||
* 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.