SDSS J082138.47+394501.8
All names: Gaia EDR3 908575558098267520, Gaia DR3 908575558098267520, SDSS J082138.48+394501.7, SDSS J082138.47+394501.6, SDSS J082138.48+394501.69, SDSS J082138.48+394501.6, SDSS J082138.47+394501.8, Gaia DR2 908575558098267520
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 21 38.47 (0.1) | 08 21 38.47 | 08 21 38.47 (0.2) | 08 21 38.48 (0.1) | ||||||
| Declination | 39 45 01.56 (0.1) | 39 45 01.85 | 39 45 01.57 (0.1) | 39 45 01.86 (0.1) | ||||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 16483.0 | 20659.0 (170) | |||||||
| log(g) | [cgs] | 7.69 | 7.96 (0.03) | |||||||
| Mass | [M☉] | 0.456 | 0.604 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0845 | ||||||||
| 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] | 2.96 (0.2) | 2.92 (0.2) | 2.96 (0.2) | ||||||
| Distance | [pc] | 337.50 (19) | 342.07 (27) | 337.50 (19) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.518082178 (0.2) | -6.347351781 (0.3) | -6.518 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -18.85219414 (0.1) | -19.14651064 (0.3) | -18.852 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.30 (0.01) | 18.31 (0.02) | 18.30 (0.01) | |||||||
| g magnitude | 18.16 (0.006) | 18.18 (0.02) | 18.16 (0.006) | |||||||
| r magnitude | 18.52 (0.008) | 18.54 (0.02) | 18.52 (0.008) | |||||||
| i magnitude | 18.77 (0.01) | 18.78 (0.02) | 18.77 (0.01) | |||||||
| z magnitude | 19.03 (0.04) | 19.04 (0.04) | 19.03 (0.04) | |||||||
| G magnitude | 18.36 (0.01) | 18.39 | 18.36 (0.003) | |||||||
| BP magnitude | 18.31 (0.01) | 18.27 | ||||||||
| RP magnitude | 18.53 (0.05) | 18.52 | ||||||||
| Pan g magnitude | 18.21 (0.004) | |||||||||
| Pan r magnitude | 18.53 (0.007) | |||||||||
| Pan i magnitude | 18.83 (0.005) | |||||||||
| Pan z magnitude | 19.06 (0.02) | |||||||||
| Pan y magnitude | 19.22 (0.1) | |||||||||
| E(B-V) | 0.029 | |||||||||
* Constant surface field
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