SDSS J084021.26+522217.8
All names: SDSS J084021.26+522217.8, Gaia DR3 1027876005685373696, SDSS J084021.23+522217.4, SDSS J084021.26+522217.9, Gaia DR2 1027876005685373696, Gaia EDR3 1027876005685373696, GALEX J084021.2+522217, SDSS J084021.23+522217.44, SDSS J084021.22+522217.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 40 21.22 (0.1) | 08 40 21.27 | 08 40 21.22 (0.2) | 08 40 21.22 | 08 40 21.27 (0.1) | ||||||
| Declination | 52 22 17.17 (0.1) | 52 22 17.81 | 52 22 17.19 (0.1) | 52 22 17.17 | 52 22 17.83 (0.1) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 11897.0 | 12285.0 (85) | 11947.0 (522) | |||||||
| log(g) | [cgs] | 8.56 | 8.75 (0.03) | 8.59 (0.05) | |||||||
| Mass | [M☉] | 0.962 | 1.041 (0.02) | 0.98 (0.04) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.9308 | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 7.39 (0.2) | 7.22 (0.2) | 7.39 | 7.39 (0.2) | ||||||
| Distance | [pc] | 135.36 (3) | 138.44 (4) | 135.36 | 135.36 (3) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -32.38198694 (0.2) | -32.81404825 (0.3) | -32.382 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -41.26860971 (0.2) | -41.64864423 (0.2) | -41.269 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.54 (0.02) | 18.55 (0.02) | 18.54 (0.02) | ||||||||
| g magnitude | 18.24 (0.007) | 18.26 (0.02) | 18.24 (0.007) | ||||||||
| r magnitude | 18.41 (0.009) | 18.42 (0.01) | 18.41 (0.009) | ||||||||
| i magnitude | 18.59 (0.01) | 18.60 (0.02) | 18.59 (0.01) | ||||||||
| z magnitude | 18.76 (0.04) | 18.78 (0.04) | 18.77 (0.04) | ||||||||
| G magnitude | 18.32 (0.02) | 18.35 | 18.32 | 18.32 (0.003) | |||||||
| BP magnitude | 18.34 (0.02) | 18.30 | |||||||||
| RP magnitude | 18.30 (0.03) | 18.29 | |||||||||
| Pan g magnitude | 18.25 (0.008) | ||||||||||
| Pan r magnitude | 18.41 (0.008) | ||||||||||
| Pan i magnitude | 18.62 (0.005) | ||||||||||
| Pan z magnitude | 18.81 (0.01) | ||||||||||
| Pan y magnitude | 18.98 (0.02) | ||||||||||
| E(B-V) | 0.006 | ||||||||||
* Constant surface field
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