SDSS J082041.32+543707.5
All names: GALEX J082041.3+543707, SDSS J082041.30+543707.3, SDSS J082041.30+543707.5, SDSS J082041.32+543707.5, Gaia DR2 1032237596513972864, Gaia EDR3 1032237596513972864, SDSS J082041.30+543707.6, SDSS J082041.31+543707.3, Gaia DR3 1032237596513972864
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 20 41.31 (0.2) | 08 20 41.32 | 08 20 41.31 (0.3) | 08 20 41.33 (0.2) | 08 20 41.30 | |||||
| Declination | 54 37 07.32 (0.2) | 54 37 07.51 | 54 37 07.32 (0.2) | 54 37 07.56 (0.2) | 54 37 07.59 | |||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 15454.0 | 23989.0 (445) | |||||||
| log(g) | [cgs] | 7.67 | 8.00 (0.07) | |||||||
| Mass | [M☉] | 0.445 | 0.631 (0.04) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.1054 | ||||||||
| 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] | 1.87 (0.3) | 2.12 (0.3) | 1.87 (0.3) | ||||||
| Distance | [pc] | 534.24 (76) | 472.20 (75) | 534.25 (76) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -12.6735031 (0.3) | -12.75156548 (0.5) | -12.674 (0.3) | ||||||
| Proper motion (declination) | [mas/yr] | -15.56442831 (0.2) | -15.84385701 (0.4) | -15.564 (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 | 18.99 (0.02) | 19.00 (0.02) | 18.99 (0.03) | |||||||
| g magnitude | 18.96 (0.009) | 18.96 (0.009) | 18.95 (0.02) | |||||||
| r magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.33 (0.02) | |||||||
| i magnitude | 19.60 (0.02) | 19.60 (0.02) | 19.60 (0.02) | |||||||
| z magnitude | 19.91 (0.1) | 19.91 (0.1) | 19.93 (0.1) | |||||||
| G magnitude | 19.16 (0.03) | 19.21 | 19.16 (0.004) | |||||||
| BP magnitude | 19.09 (0.03) | 19.09 | ||||||||
| RP magnitude | 19.35 (0.06) | 19.38 | ||||||||
| Pan g magnitude | 19.01 (0.007) | |||||||||
| Pan r magnitude | 19.32 (0.008) | |||||||||
| Pan i magnitude | 19.62 (0.01) | |||||||||
| Pan z magnitude | 19.83 (0.03) | |||||||||
| Pan y magnitude | 19.95 (0.03) | |||||||||
| E(B-V) | 0.038 | |||||||||
* Constant surface field
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