Gaia DR2 3870346934829606528
All names: LP 490-56, Gaia EDR3 3870346934829606528, Gaia DR2 3870346934829606528, J1042+1017, WDJ104221.29+101756.86, GALEX J104221.2+101755, USNO-B1.0 1002-00188531, NLTT 25106, Gaia DR3 3870346934829606528, SDSS J104221.24+101755.2, SDSS J104221.26+101756.0, WDJ104221.29+101756.87, LSPM J1042+1017
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 42 21.18 (0.1) | 10 42 21.19 | 10 42 21.18 | 10 42 21.29 (0.1) | 10 42 21.19 | ||||||||
| Declination | 10 17 52.72 (0.1) | 10 17 52.85 | 10 17 52.72 | 10 17 56.87 (0.1) | 10 17 52.85 | ||||||||
| Spectral type | DC | DC | DA | DC | DC | ||||||||
| Effective temperature | [K] | 6146.0 (30) | 6050.0 (30) | 6395.0 | 6141.0 | 6391.0 (124) | |||||||
| log(g) | [cgs] | 8.30 (0.01) | 8.25 (0.02) | 8.44 | 8.32 | 8.42 (0.03) | |||||||
| Mass | [M☉] | 0.766 (0.01) | 0.734 (0.01) | 0.874 | 0.778 | 0.858 (0.03) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 4.3100 | 4.3620 | 4.4500 | |||||||||
| log(H/He) | -3.0 | ||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(N/He) | |||||||||||||
| log(O/He) | |||||||||||||
| log(Na/He) | |||||||||||||
| log(Mg/He) | |||||||||||||
| log(Al/He) | |||||||||||||
| log(Si/He) | |||||||||||||
| log(P/He) | |||||||||||||
| log(S/He) | |||||||||||||
| log(Cl/He) | |||||||||||||
| log(Sc/He) | |||||||||||||
| log(Ti/He) | |||||||||||||
| log(V/He) | |||||||||||||
| log(Cr/He) | |||||||||||||
| log(Mn/He) | |||||||||||||
| log(Fe/He) | |||||||||||||
| log(Co/He) | |||||||||||||
| log(Ni/He) | |||||||||||||
| log(Cu/He) | |||||||||||||
| log(Zn/He) | |||||||||||||
| log(Ga/He) | |||||||||||||
| log(Ge/He) | |||||||||||||
| log(Sr/He) | |||||||||||||
| Parallax | [mas] | 18.00 (0.2) | 18.25 (0.2) | 18.25 (0.2) | 18.00 | 18.00 (0.2) | 18.25 (0.2) | ||||||
| Distance | [pc] | 55.56 (0.5) | 54.79 (0.7) | 54.78 (0.7) | 55.56 | 55.56 (0.5) | 54.78 (0.7) | ||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -97.72374471 (0.2) | -97.64601359 (0.3) | -97.724 (0.2) | -97.64601359 | ||||||||
| Proper motion (declination) | [mas/yr] | -259.2838275 (0.2) | -259.5585068 (0.3) | -259.284 (0.2) | -259.5585068 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 18.80 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.80 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.42 (0.03) | ||||||||||||
| H magnitude | 17.22 (0.03) | ||||||||||||
| K magnitude | 17.07 (0.06) | ||||||||||||
| u magnitude | 19.14 (0.02) | 19.18 (0.03) | 19.14 (0.02) | ||||||||||
| g magnitude | 18.44 (0.007) | 18.41 (0.007) | |||||||||||
| r magnitude | 18.11 (0.007) | 18.12 (0.007) | |||||||||||
| i magnitude | 18.02 (0.008) | 18.03 (0.009) | |||||||||||
| z magnitude | 17.98 (0.02) | 18.04 (0.03) | |||||||||||
| G magnitude | 18.11 (0.02) | 18.14 | 18.11 | 18.11 (0.003) | 18.14 | ||||||||
| BP magnitude | 18.35 (0.02) | 18.33 | 18.33 | ||||||||||
| RP magnitude | 17.73 (0.02) | 17.68 | 17.68 | ||||||||||
| Pan g magnitude | 18.38 (0.004) | 18.38 (0.004) | |||||||||||
| Pan r magnitude | 18.12 (0.006) | 18.12 (0.005) | |||||||||||
| Pan i magnitude | 18.03 (0.003) | 18.03 (0.004) | |||||||||||
| Pan z magnitude | 18.06 (0.007) | 18.06 (0.007) | |||||||||||
| Pan y magnitude | 18.07 (0.01) | 18.07 (0.01) | |||||||||||
| E(B-V) | 0.002 | ||||||||||||
* Constant surface field
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