Gaia DR2 2876148729784835584
All names: WDJ001840.46+344147.72, USNO-B1.0 1246-00005286, NLTT 944, LSPM J0018+3441E, SDSS J001840.73+344147.6, SDSS J001840.72+344147.6, Gaia EDR3 2876148729784835584, LP 240-56 B, Gaia DR2 2876148729784835584, Gaia DR3 2876148729784835584
| 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 | 00 18 40.90 (0.2) | 00 18 40.88 | 00 18 40.90 | 00 18 40.46 (0.2) | 00 18 40.88 | |||||
| Declination | 34 41 47.69 (0.2) | 34 41 47.69 | 34 41 47.69 | 34 41 47.73 (0.2) | 34 41 47.69 | |||||
| Spectral type | DA | DA | ||||||||
| Effective temperature | [K] | 5753.0 | 5477.0 | 5695.0 (137) | ||||||
| log(g) | [cgs] | 8.17 | 8.01 | 8.15 (0.06) | ||||||
| Mass | [M☉] | 0.695 | 0.573 | 0.681 (0.06) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 3.9720 | 4.0580 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 10.21 (0.3) | 10.07 (0.3) | 10.21 | 10.21 (0.3) | 10.07 (0.3) | ||||
| Distance | [pc] | 97.90 (3) | 99.29 (3) | 97.90 | 97.90 (3) | 99.29 (3) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 335.0847259 (0.4) | 334.4805365 (0.6) | 335.085 (0.4) | 334.4805365 | |||||
| Proper motion (declination) | [mas/yr] | -2.582065204 (0.3) | -2.113227019 (0.4) | -2.582 (0.3) | -2.113227019 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.50 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 19.50 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.82 (0.09) | 20.82 (0.09) | ||||||||
| g magnitude | 19.89 (0.02) | 19.89 (0.02) | ||||||||
| r magnitude | 19.42 (0.02) | 19.42 (0.02) | ||||||||
| i magnitude | 19.24 (0.02) | 19.24 (0.02) | ||||||||
| z magnitude | 19.30 (0.07) | 19.30 (0.07) | ||||||||
| G magnitude | 19.43 (0.04) | 19.47 | 19.43 | 19.43 (0.004) | 19.47 | |||||
| BP magnitude | 19.80 (0.04) | 19.77 | 19.77 | |||||||
| RP magnitude | 18.93 (0.04) | 18.96 | 18.96 | |||||||
| Pan g magnitude | 19.79 (0.02) | |||||||||
| Pan r magnitude | 19.44 (0.007) | |||||||||
| Pan i magnitude | 19.28 (0.009) | |||||||||
| Pan z magnitude | 19.26 (0.01) | |||||||||
| Pan y magnitude | 19.19 (0.01) | |||||||||
| E(B-V) | 0.008 | |||||||||
* Constant surface field
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