Gaia DR2 2066251179185657856
All names: Gaia DR3 2066251179185657856, J2045+4146, SDSS J204502.48+414622.5, Gaia EDR3 2066251179185657856, LSPM J2045+4146, UVEX J204502.52+414622.9, SDSS J204502.49+414622.6, WDJ20452.45+414622.14, USNO-B1.0 1317-00422205, WDJ204502.45+414622.14, UGPS J204502.52+414622.9, Gaia DR2 2066251179185657856
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 45 02.61 (0.04) | 20 45 02.61 | 20 45 02.61 | 20 45 02.45 (0.04) | 20 45 02.61 | ||||||||
| Declination | 41 46 24.10 (0.05) | 41 46 24.04 | 41 46 24.10 | 41 46 22.14 (0.05) | 41 46 24.04 | ||||||||
| Spectral type | DQ: | DC | DC | DC | DC | ||||||||
| Effective temperature | [K] | 8668.0 (74) | 9597.0 (76) | 9380.0 (102) | 9493.0 | 9346.0 | 9263.0 (129) | ||||||
| log(g) | [cgs] | 7.89 (0.01) | 8.12 (0.01) | 8.06 (0.02) | 8.23 | 8.15 | 8.09 (0.02) | ||||||
| Mass | [M☉] | 0.516 (0.01) | 0.655 (0.01) | 0.617 (0.01) | 0.74 | 0.674 | 0.635 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.8700 | 0.9591 | 0.9365 | |||||||||
| log(H/He) | -4.4 | -4.4 | |||||||||||
| log(C/He) | -4.61 | ||||||||||||
| 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] | 11.87 (0.06) | 11.82 (0.07) | 11.82 (0.07) | 11.87 | 11.87 (0.06) | 11.82 (0.07) | ||||||
| Distance | [pc] | 84.22 (0.4) | 84.60 (0.5) | 84.58 (0.5) | 84.22 | 84.22 (0.4) | 84.58 (0.5) | ||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 111.9504054 (0.06) | 111.9669057 (0.1) | 111.95 (0.06) | 111.9669057 | ||||||||
| Proper motion (declination) | [mas/yr] | 122.5768527 (0.07) | 122.5498718 (0.1) | 122.577 (0.07) | 122.5498718 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 18.10 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.30 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.24 (0.02) | 17.24 (0.02) | |||||||||||
| H magnitude | 17.28 (0.03) | 17.28 (0.03) | |||||||||||
| K magnitude | 17.43 (0.07) | 17.32 (0.08) | |||||||||||
| u magnitude | 17.45 (0.01) | 17.44 (0.01) | 17.44 (0.01) | ||||||||||
| g magnitude | 17.31 (0.005) | 17.31 (0.005) | |||||||||||
| r magnitude | 17.37 (0.005) | 17.37 (0.005) | |||||||||||
| i magnitude | 17.49 (0.007) | 17.49 (0.007) | |||||||||||
| z magnitude | 17.66 (0.02) | 17.66 (0.02) | |||||||||||
| G magnitude | 17.30 (0.005) | 17.33 | 17.30 | 17.30 (0.003) | 17.33 | ||||||||
| BP magnitude | 17.36 (0.005) | 17.35 | 17.35 | ||||||||||
| RP magnitude | 17.22 (0.009) | 17.21 | 17.21 | ||||||||||
| Pan g magnitude | 17.35 (0.008) | 17.35 (0.008) | |||||||||||
| Pan r magnitude | 17.40 (0.005) | 17.40 (0.005) | |||||||||||
| Pan i magnitude | 17.53 (0.003) | 17.53 (0.004) | |||||||||||
| Pan z magnitude | 17.67 (0.009) | 17.67 (0.009) | |||||||||||
| Pan y magnitude | 17.74 (0.008) | 17.74 (0.008) | |||||||||||
| E(B-V) | 0.009 | ||||||||||||
* Constant surface field
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