SDSS J085421.57+231156.8
All names: SDSS J085421.58+231156.9, Gaia DR3 686234103435660672, Gaia EDR3 686234103435660672, SDSS J085421.57+231156.9, GALEX J085421.5+231157, SDSS J085421.57+231156.8, Gaia DR2 686234103435660672
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 54 21.57 (0.3) | 08 54 21.57 | 08 54 21.57 (0.3) | 08 54 21.58 (0.3) | 08 54 21.58 | ||||||
| Declination | 23 11 56.79 (0.1) | 23 11 56.87 | 23 11 56.79 (0.2) | 23 11 56.83 (0.1) | 23 11 56.90 | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 50696.0 (3597) | 22983.0 | 49704.0 (2598) | |||||||
| log(g) | [cgs] | 7.35 (0.3) | 7.51 | 7.44 (0.2) | |||||||
| Mass | [M☉] | 0.44 (0.08) | 0.409 | 0.493 (0.06) | |||||||
| log(Luminosity) | [L☉] | 0.50 (0.2) | |||||||||
| Cooling age | [Gyr] | 0.0001 | 0.0219 | ||||||||
| 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] | 0.99 (0.3) | 1.35 (0.5) | 0.99 (0.3) | |||||||
| Distance | [pc] | 1012.75 (309) | 740.76 (252) | 1012.76 (309) | |||||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.200210783 (0.3) | -6.190815389 (0.7) | -6.2 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -2.673123357 (0.2) | -2.393149305 (0.4) | -2.673 (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 | 18.64 (0.02) | 18.64 (0.02) | 18.77 (0.07) | ||||||||
| g magnitude | 18.86 (0.009) | 18.85 (0.009) | 18.89 (0.02) | ||||||||
| r magnitude | 19.31 (0.01) | 19.31 (0.01) | 19.33 (0.02) | ||||||||
| i magnitude | 19.67 (0.02) | 19.67 (0.02) | 19.70 (0.03) | ||||||||
| z magnitude | 19.73 (0.1) | 19.73 (0.1) | 19.77 (0.1) | ||||||||
| G magnitude | 19.11 (0.02) | 19.15 | 19.11 (0.004) | ||||||||
| BP magnitude | 19.02 (0.02) | 18.94 | |||||||||
| RP magnitude | 19.36 (0.05) | 19.34 | |||||||||
| Pan g magnitude | 18.94 (0.009) | ||||||||||
| Pan r magnitude | 19.37 (0.008) | ||||||||||
| Pan i magnitude | 19.69 (0.01) | ||||||||||
| Pan z magnitude | 19.98 (0.02) | ||||||||||
| Pan y magnitude | 19.85 (0.06) | ||||||||||
| E(B-V) | 0.028 | ||||||||||
* Constant surface field
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