SDSS J082107.35+194433.7
All names: Gaia DR2 663590623534010880, Gaia DR3 663590623534010880, GALEX J082107.3+194434, SDSS J082107.35+194433.7, SDSS J082107.34+194433.6, Gaia EDR3 663590623534010880
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 21 07.35 (0.3) | 08 21 07.35 | 08 21 07.35 (0.4) | 08 21 07.35 (0.3) | 08 21 07.35 | ||||||
| Declination | 19 44 33.57 (0.2) | 19 44 33.70 | 19 44 33.58 (0.2) | 19 44 33.71 (0.2) | 19 44 33.68 | ||||||
| Spectral type | DA | DAH | DAH | DAH | DA | ||||||
| Effective temperature | [K] | 26778.1 (771) | 17640.0 | 25636.0 (795) | |||||||
| log(g) | [cgs] | 7.52 (0.2) | 7.08 | 7.44 (0.1) | |||||||
| Mass | [M☉] | 0.4252001371477393 (0.2) | 0.272 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.0418 | |||||||||
| 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] | 1.08 (0.3) | 1.11 (0.4) | 1.08 (0.3) | |||||||
| Distance | [pc] | 928.00 (282) | 898.13 (324) | 927.99 (282) | |||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.465971055 (0.4) | -3.190103804 (0.7) | -2.466 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -8.622766587 (0.3) | -8.845750468 (0.5) | -8.623 (0.3) | |||||||
| 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) | 18.99 (0.02) | 19.01 (0.03) | ||||||||
| g magnitude | 19.16 (0.01) | 19.16 (0.01) | 19.13 (0.02) | ||||||||
| r magnitude | 19.53 (0.02) | 19.53 (0.01) | 19.56 (0.02) | ||||||||
| i magnitude | 19.84 (0.02) | 19.84 (0.02) | 19.87 (0.03) | ||||||||
| z magnitude | 20.23 (0.1) | 20.23 (0.1) | 20.07 (0.1) | ||||||||
| G magnitude | 19.35 (0.03) | 19.40 | 19.35 (0.004) | ||||||||
| BP magnitude | 19.25 (0.03) | 19.14 | |||||||||
| RP magnitude | 19.68 (0.07) | 19.38 | |||||||||
| Pan g magnitude | 19.19 (0.01) | ||||||||||
| Pan r magnitude | 19.57 (0.009) | ||||||||||
| Pan i magnitude | 19.90 (0.01) | ||||||||||
| Pan z magnitude | 20.16 (0.04) | ||||||||||
| Pan y magnitude | 20.02 (0.05) | ||||||||||
| E(B-V) | 0.033 | ||||||||||
* Constant surface field
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