Gaia DR2 2109069121205948288
All names: WDJ182037.62+390345.21, WDJ182037.62+390345.20, NLTT 46339, USNO-B1.0 1290-00294956, Gaia DR3 2109069121205948288, LSPM J1820+3903, 2MASS J18203762+3903452, Gaia EDR3 2109069121205948288, TIC 316823093, LP 279-25, Gaia DR2 2109069121205948288
| 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 | 18 20 37.34 (0.05) | 18 20 37.35 | 18 20 37.34 | 18 20 37.62 (0.05) | 18 20 37.35 | |||||
| Declination | 39 03 51.13 (0.05) | 39 03 50.94 | 39 03 51.13 | 39 03 45.21 (0.05) | 39 03 50.94 | |||||
| Spectral type | DA: | D | ||||||||
| Effective temperature | [K] | 6200.0 | 5957.0 | 6060.0 (38) | ||||||
| log(g) | [cgs] | 8.19 | 8.06 | 8.13 (0.01) | ||||||
| Mass | [M☉] | 0.709 | 0.606 | 0.667 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 3.2610 | 3.0240 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 24.05 (0.06) | 24.08 (0.08) | 24.05 | 24.05 (0.06) | 24.08 (0.08) | ||||
| Distance | [pc] | 41.58 (0.1) | 41.54 (0.1) | 41.58 | 41.58 (0.1) | 41.54 (0.1) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -200.9546228 (0.06) | -200.9824491 (0.1) | -200.955 (0.06) | -200.9824491 | |||||
| Proper motion (declination) | [mas/yr] | 369.7025497 (0.07) | 369.8280273 (0.2) | 369.703 (0.07) | 369.8280273 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.10 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 17.00 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.53 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 17.25 (0.006) | 17.26 | 17.25 | 17.25 (0.003) | 17.26 | |||||
| BP magnitude | 17.53 (0.006) | 17.53 | 17.53 | |||||||
| RP magnitude | 16.82 (0.005) | 16.81 | 16.81 | |||||||
| Pan g magnitude | 17.57 (0.003) | |||||||||
| Pan r magnitude | 17.21 (0.006) | |||||||||
| Pan i magnitude | 17.15 (0.002) | |||||||||
| Pan z magnitude | 17.15 (0.004) | |||||||||
| Pan y magnitude | 17.20 (0.02) | |||||||||
| E(B-V) | 0.004 | |||||||||
* Constant surface field
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