Gaia DR2 1857241028137065984
All names: WDJ203903.52+281257.76, Gaia DR2 1857241028137065984, Gaia DR3 1857241028137065984, Gaia EDR3 1857241028137065984, SDSS J203903.53+281256.3, WDJ20393.52+281257.75, SDSS J203903.53+281256.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 39 03.55 (0.1) | 20 39 03.55 | 20 39 03.55 | 20 39 03.52 (0.1) | 20 39 03.55 | |||||
| Declination | 28 12 54.10 (0.1) | 28 12 54.21 | 28 12 54.10 | 28 12 57.76 (0.1) | 28 12 54.21 | |||||
| Spectral type | DA: | DA | ||||||||
| Effective temperature | [K] | 4835.0 | 4515.0 | 4909.0 (68) | ||||||
| log(g) | [cgs] | 7.91 | 7.68 | 7.97 (0.04) | ||||||
| Mass | [M☉] | 0.526 | 0.394 | 0.563 (0.03) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 5.4310 | 3.9780 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 15.07 (0.2) | 14.85 (0.2) | 15.07 | 15.07 (0.2) | 14.85 (0.2) | ||||
| Distance | [pc] | 66.37 (0.8) | 67.35 (1) | 66.37 | 66.37 (0.8) | 67.35 (1) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 23.27163871 (0.1) | 22.88696914 (0.3) | 23.272 (0.1) | 22.88696914 | |||||
| Proper motion (declination) | [mas/yr] | -229.1504928 (0.2) | -228.7825913 (0.3) | -229.15 (0.2) | -228.7825913 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 21.52 (0.2) | 21.52 (0.2) | ||||||||
| g magnitude | 19.83 (0.02) | 19.83 (0.02) | ||||||||
| r magnitude | 18.99 (0.01) | 18.99 (0.01) | ||||||||
| i magnitude | 18.68 (0.01) | 18.68 (0.01) | ||||||||
| z magnitude | 18.76 (0.05) | 18.76 (0.05) | ||||||||
| G magnitude | 19.04 (0.02) | 19.07 | 19.04 | 19.04 (0.003) | 19.07 | |||||
| BP magnitude | 19.55 (0.02) | 19.63 | 19.63 | |||||||
| RP magnitude | 18.40 (0.02) | 18.39 | 18.39 | |||||||
| Pan g magnitude | 19.69 (0.02) | |||||||||
| Pan r magnitude | 19.01 (0.007) | |||||||||
| Pan i magnitude | 18.73 (0.006) | |||||||||
| Pan z magnitude | 18.64 (0.009) | |||||||||
| Pan y magnitude | 18.61 (0.04) | |||||||||
| E(B-V) | 0.006 | |||||||||
* Constant surface field
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