SDSS J214647.87+000438.3
All names: SDSS J214647.87+000438.3, SDSS J214647.87+000438.2, SDSS J214647.88+000438.21, Gaia DR3 2681136358185630208, SDSS J214647.88+000438.2, GALEX J214647.9+000439, Gaia EDR3 2681136358185630208, Gaia DR2 2681136358185630208
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 46 47.88 (0.2) | 21 46 47.88 | 21 46 47.88 (0.3) | 21 46 47.88 | 21 46 47.87 (0.2) | ||||||
| Declination | 00 04 38.10 (0.2) | 00 04 38.31 | 00 04 38.10 (0.3) | 00 04 38.10 | 00 04 38.31 (0.2) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 15707.0 | 23758.0 (130) | 18738.0 (1513) | |||||||
| log(g) | [cgs] | 7.77 | 8.16 (0.02) | 7.76 (0.1) | |||||||
| Mass | [M☉] | 0.494 | 0.7120000000000001 (0.008) | 0.497 (0.07) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.1163 | |||||||||
| 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] | 2.83 (0.2) | 3.23 (0.4) | 2.83 | 2.83 (0.2) | ||||||
| Distance | [pc] | 352.98 (25) | 310.05 (35) | 352.98 | 352.98 (25) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 10.12174648 (0.2) | 9.754461836 (0.4) | 10.122 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -13.6456845 (0.2) | -14.44938414 (0.5) | -13.646 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 18.68 (0.1) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.26 (0.01) | 18.26 (0.02) | 18.26 (0.01) | ||||||||
| g magnitude | 18.19 (0.006) | 18.22 (0.01) | 18.19 (0.006) | ||||||||
| r magnitude | 18.54 (0.009) | 18.53 (0.01) | 18.54 (0.009) | ||||||||
| i magnitude | 18.80 (0.01) | 18.79 (0.02) | 18.80 (0.01) | ||||||||
| z magnitude | 19.15 (0.05) | 19.14 (0.05) | 19.15 (0.05) | ||||||||
| G magnitude | 18.36 (0.03) | 18.40 | 18.36 | 18.36 (0.003) | |||||||
| BP magnitude | 18.25 (0.03) | 18.25 | |||||||||
| RP magnitude | 18.55 (0.04) | 18.52 | |||||||||
| Pan g magnitude | 18.20 (0.009) | ||||||||||
| Pan r magnitude | 18.54 (0.006) | ||||||||||
| Pan i magnitude | 18.82 (0.005) | ||||||||||
| Pan z magnitude | 19.05 (0.01) | ||||||||||
| Pan y magnitude | 19.15 (0.02) | ||||||||||
| E(B-V) | 0.062 | ||||||||||
* Constant surface field
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