Gaia DR2 1859068420763724800
All names: WDJ20478.14+301106.20, WDJ204708.14+301106.21, USNO-B1.0 1201-00521054, NLTT 49893, Gaia DR3 1859068420763724800, LSPM J2047+3011, Gaia DR2 1859068420763724800, Gaia EDR3 1859068420763724800, LP 340-56
| 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 47 08.00 (0.04) | 20 47 08.00 | 20 47 08.00 | 20 47 08.14 (0.04) | 20 47 08.00 | |||||
| Declination | 30 11 03.09 (0.06) | 30 11 03.19 | 30 11 03.09 | 30 11 06.21 (0.06) | 30 11 03.19 | |||||
| Spectral type | DA | DA | ||||||||
| Effective temperature | [K] | 7244.0 | 6992.0 | 7169.0 (61) | ||||||
| log(g) | [cgs] | 8.19 | 8.09 | 8.16 (0.01) | ||||||
| Mass | [M☉] | 0.71 | 0.629 | 0.689 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.8740 | 1.8150 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 16.81 (0.08) | 16.75 (0.1) | 16.81 | 16.81 (0.08) | 16.75 (0.1) | ||||
| Distance | [pc] | 59.50 (0.3) | 59.72 (0.3) | 59.50 | 59.50 (0.3) | 59.72 (0.3) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -109.3731335 (0.06) | -109.2737253 (0.1) | -109.373 (0.06) | -109.2737253 | |||||
| Proper motion (declination) | [mas/yr] | -195.0482362 (0.07) | -194.9056176 (0.1) | -195.048 (0.07) | -194.9056176 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.60 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 17.40 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 17.43 (0.004) | 17.45 | 17.43 | 17.43 (0.003) | 17.45 | |||||
| BP magnitude | 17.61 (0.004) | 17.60 | 17.60 | |||||||
| RP magnitude | 17.14 (0.005) | 17.12 | 17.12 | |||||||
| Pan g magnitude | 17.63 (0.004) | |||||||||
| Pan r magnitude | 17.49 (0.006) | |||||||||
| Pan i magnitude | 17.45 (0.003) | |||||||||
| Pan z magnitude | 17.51 (0.005) | |||||||||
| Pan y magnitude | 17.63 (0.03) | |||||||||
| E(B-V) | 0.005 | |||||||||
* Constant surface field
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