SDSS J202455.31+755645.7
All names: Gaia EDR3 2290133393235060352, Gaia DR2 2290133393235060352, SDSS J202455.31+755645.6, SDSS J202455.30+755645.6, Gaia DR3 2290133393235060352, SDSS J202455.31+755645.7, SDSS J202455.32+755645.6, GALEX J202455.2+755645
| 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 | 20 24 55.32 (0.3) | 20 24 55.31 | 20 24 55.32 (0.3) | 20 24 55.32 (0.3) | 20 24 55.31 | |||||
| Declination | 75 56 45.65 (0.3) | 75 56 45.62 | 75 56 45.65 (0.4) | 75 56 45.68 (0.3) | 75 56 45.68 | |||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 10392.0 | 19178.0 (898) | |||||||
| log(g) | [cgs] | 7.82 | 8.04 (0.1) | |||||||
| Mass | [M☉] | 0.501 | 0.642 (0.08) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.4372 | ||||||||
| 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] | 2.48 (0.3) | 2.36 (0.4) | 2.48 (0.3) | ||||||
| Distance | [pc] | 403.37 (48) | 423.14 (67) | 403.37 (48) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.035297979 (0.4) | 0.162145783 (0.7) | -1.035 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -2.120302515 (0.4) | -4.063135047 (0.8) | -2.12 (0.4) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.26 (0.06) | 20.26 (0.06) | 20.21 (0.07) | |||||||
| g magnitude | 19.83 (0.02) | 19.83 (0.02) | 19.84 (0.02) | |||||||
| r magnitude | 19.96 (0.03) | 19.96 (0.03) | 19.95 (0.03) | |||||||
| i magnitude | 20.07 (0.04) | 20.07 (0.04) | 20.06 (0.04) | |||||||
| z magnitude | 20.27 (0.2) | 20.27 (0.2) | 20.26 (0.1) | |||||||
| G magnitude | 19.87 (0.04) | 19.92 | 19.87 (0.005) | |||||||
| BP magnitude | 19.94 (0.04) | 20.05 | ||||||||
| RP magnitude | 19.93 (0.09) | 19.83 | ||||||||
| Pan g magnitude | 19.91 (0.02) | |||||||||
| Pan r magnitude | 19.97 (0.01) | |||||||||
| Pan i magnitude | 20.23 (0.02) | |||||||||
| Pan z magnitude | 20.24 (0.07) | |||||||||
| Pan y magnitude | 19.63 (0.2) | |||||||||
| E(B-V) | 0.136 | |||||||||
* Constant surface field
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