SDSS J230934.50+211821.8
All names: SDSS J230934.51+211821.8, Gaia DR2 2838427406413467008, SDSS J230934.51+211821.9, SDSS J230934.50+211821.8, SDSS J230934.50+211821.9, GALEX J230934.4+211822, Gaia EDR3 2838427406413467008, Gaia DR3 2838427406413467008
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 09 34.54 (0.1) | 23 09 34.51 | 23 09 34.54 (0.1) | 23 09 34.54 | 23 09 34.49 (0.1) | 23 09 34.51 | |||||
| Declination | 21 18 21.69 (0.1) | 21 18 21.85 | 21 18 21.70 (0.1) | 21 18 21.69 | 21 18 21.98 (0.1) | 21 18 21.91 | |||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 13517.0 | 14880.0 (879) | 16396.0 (91) | |||||||
| log(g) | [cgs] | 7.85 | 7.97 (0.07) | 8.09 (0.02) | |||||||
| Mass | [M☉] | 0.524 | 0.596 (0.05) | 0.663 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.2157 | |||||||||
| 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] | 4.13 (0.2) | 4.09 (0.2) | 4.13 | 4.13 (0.2) | ||||||
| Distance | [pc] | 242.39 (9) | 244.21 (13) | 242.39 | 242.39 (9) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 44.88167645 (0.2) | 45.38051236 (0.4) | 44.882 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -18.40011812 (0.1) | -18.60150092 (0.2) | -18.4 (0.1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.37 (0.01) | 18.38 (0.01) | 18.34 (0.02) | ||||||||
| g magnitude | 18.07 (0.006) | 18.07 (0.006) | 18.07 (0.01) | ||||||||
| r magnitude | 18.37 (0.008) | 18.37 (0.008) | 18.38 (0.01) | ||||||||
| i magnitude | 18.60 (0.01) | 18.60 (0.01) | 18.61 (0.01) | ||||||||
| z magnitude | 18.90 (0.04) | 18.90 (0.04) | 18.87 (0.04) | ||||||||
| G magnitude | 18.24 (0.03) | 18.26 | 18.24 | 18.24 (0.003) | |||||||
| BP magnitude | 18.28 (0.03) | 18.18 | |||||||||
| RP magnitude | 18.33 (0.03) | 18.29 | |||||||||
| Pan g magnitude | 18.10 (0.009) | ||||||||||
| Pan r magnitude | 18.36 (0.003) | ||||||||||
| Pan i magnitude | 18.62 (0.004) | ||||||||||
| Pan z magnitude | 18.85 (0.01) | ||||||||||
| Pan y magnitude | 18.95 (0.03) | ||||||||||
| E(B-V) | 0.030 | ||||||||||
* Constant surface field
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