SDSS J204553.48+152603.5
All names: SDSSJ204553.48+152603.5, SDSS J204553.49+152603.5, Gaia DR2 1762904476658229504, GALEX J204553.4+152603, SDSS J204553.48+152603.5, SDSS J204553.49+152603.56, Gaia DR3 1762904476658229504, Gaia EDR3 1762904476658229504
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 45 53.48 (0.04) | 20 45 53.49 | 20 45 53.48 | 20 45 53.48 (0.07) | 20 45 53.49 (0.04) | |||||
| Declination | 15 26 03.45 (0.04) | 15 26 03.59 | 15 26 03.50 | 15 26 03.46 (0.07) | 15 26 03.58 (0.04) | |||||
| Spectral type | sdB | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 26353.0 (1236) | 22074.0 | 28209.0 (197) | ||||||
| log(g) | [cgs] | 5.34 (0.2) | 5.02 | 5.50 (0.03) | ||||||
| Mass | [M☉] | 0.182 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.43 (0.06) | 0.41 (0.09) | 0.41 (0.09) | 0.43 (0.06) | |||||
| Distance | [pc] | 2335.26 (343) | 2434.27 (540) | 2434.37 (540) | 2335.36 (343) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.815176674 (0.06) | -6.799 (0.1) | -6.798622214 (0.1) | -6.815 (0.06) | |||||
| Proper motion (declination) | [mas/yr] | -7.806999806 (0.05) | -7.987 (0.1) | -7.987432765 (0.1) | -7.807 (0.05) | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 16.43 (0.006) | 16.44 (0.006) | 16.45 (0.02) | 16.44 (0.006) | ||||||
| g magnitude | 16.54 (0.004) | 16.52 (0.004) | 16.56 (0.004) | 16.55 (0.004) | ||||||
| r magnitude | 16.95 (0.005) | 16.94 (0.005) | 16.98 (0.006) | 16.94 (0.005) | ||||||
| i magnitude | 17.27 (0.006) | 17.26 (0.006) | 17.26 (0.006) | 17.26 (0.006) | ||||||
| z magnitude | 17.50 (0.02) | 17.47 (0.02) | 17.50 (0.03) | 17.47 (0.02) | ||||||
| G magnitude | 16.75 (0.003) | 16.78 (0.001) | 16.78 | 16.75 (0.003) | ||||||
| BP magnitude | 16.65 (0.003) | 16.61 (0.006) | 16.61 | |||||||
| RP magnitude | 16.96 (0.006) | 16.95 (0.006) | 16.95 | |||||||
| Pan g magnitude | 16.62 (0.005) | 16.62 (0.005) | ||||||||
| Pan r magnitude | 16.97 (0.002) | 16.97 (0.002) | ||||||||
| Pan i magnitude | 17.28 (0.001) | 17.28 (0.001) | ||||||||
| Pan z magnitude | 17.53 (0.004) | 17.53 (0.004) | ||||||||
| Pan y magnitude | 17.69 (0.01) | 17.69 (0.01) | ||||||||
| E(B-V) | 0.067 | |||||||||
* Constant surface field
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