SDSS J204055.91+140037.5
All names: Gaia EDR3 1762317715405645568, SDSS J204055.91+140037.57, Gaia DR2 1762317715405645568, SDSS J204055.90+140037.6, Gaia DR3 1762317715405645568, SDSS J204055.91+140037.5, GALEX J204055.9+140038
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 40 55.91 (0.2) | 20 40 55.91 | 20 40 55.91 (0.3) | 20 40 55.91 (0.2) | |||||
| Declination | 14 00 37.53 (0.2) | 14 00 37.63 | 14 00 37.53 (0.3) | 14 00 37.58 (0.2) | |||||
| Spectral type | He-sdB | He-sdB | DB | ||||||
| Effective temperature | [K] | 17912.0 | 32166.0 (1000) | ||||||
| log(g) | [cgs] | 5.86 | 6.50 (0.005) | ||||||
| Mass | [M☉] | 0.095 | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.49 (0.3) | 0.43 (0.3) | 0.49 (0.3) | |||||
| Distance | [pc] | 2049.75 (1123) | 2334.14 (1784) | 2049.60 (1123) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.504122954 (0.3) | 1.036741117 (0.5) | 0.504 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | -3.095386492 (0.3) | -2.88094138 (0.5) | -3.095 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.87 (0.02) | 18.87 (0.02) | 18.87 (0.02) | ||||||
| g magnitude | 19.14 (0.01) | 19.14 (0.01) | 19.14 (0.01) | ||||||
| r magnitude | 19.49 (0.02) | 19.49 (0.02) | 19.49 (0.02) | ||||||
| i magnitude | 19.81 (0.03) | 19.81 (0.03) | 19.81 (0.03) | ||||||
| z magnitude | 20.29 (0.2) | 20.29 (0.2) | 20.29 (0.2) | ||||||
| G magnitude | 19.31 (0.02) | 19.36 | 19.31 (0.004) | ||||||
| BP magnitude | 19.21 (0.02) | 19.11 | |||||||
| RP magnitude | 19.46 (0.06) | 19.50 | |||||||
| Pan g magnitude | 19.18 (0.006) | ||||||||
| Pan r magnitude | 19.52 (0.008) | ||||||||
| Pan i magnitude | 19.83 (0.02) | ||||||||
| Pan z magnitude | 20.09 (0.04) | ||||||||
| Pan y magnitude | 19.81 (0.08) | ||||||||
| E(B-V) | 0.083 | ||||||||
* Constant surface field
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