SDSS J180445.94+230832.8
All names: SDSS J180445.94+230832.8, SDSS J180445.93+230832.7, SDSS J180445.94+230832.7, Gaia EDR3 4577524844989332352, Gaia DR2 4577524844989332352, Gaia DR3 4577524844989332352
| 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 | 18 04 45.90 (0.1) | 18 04 45.94 | 18 04 45.90 (0.2) | 18 04 45.90 | 18 04 45.96 (0.1) | 18 04 45.94 | |||||
| Declination | 23 08 32.46 (0.2) | 23 08 32.71 | 23 08 32.47 (0.3) | 23 08 32.46 | 23 08 32.83 (0.2) | 23 08 32.75 | |||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 7990.0 | 8523.0 (335) | 8889.0 (72) | |||||||
| log(g) | [cgs] | 7.65 | 7.91 (0.09) | 8.24 (0.1) | |||||||
| Mass | [M☉] | 0.41 | 0.546 (0.08) | 0.739 (0.08) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.7113 | |||||||||
| 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] | 4.49 (0.2) | 4.20 (0.3) | 4.49 | 4.49 (0.2) | ||||||
| Distance | [pc] | 222.92 (11) | 238.26 (19) | 222.92 | 222.92 (11) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -49.94029941 (0.2) | -49.60383583 (0.3) | -49.94 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -23.31586821 (0.2) | -24.15574015 (0.5) | -23.316 (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 | 19.99 (0.04) | 19.99 (0.04) | 19.95 (0.04) | ||||||||
| g magnitude | 19.46 (0.01) | 19.46 (0.01) | 19.45 (0.02) | ||||||||
| r magnitude | 19.44 (0.01) | 19.44 (0.01) | 19.43 (0.02) | ||||||||
| i magnitude | 19.47 (0.02) | 19.47 (0.02) | 19.45 (0.02) | ||||||||
| z magnitude | 19.48 (0.06) | 19.48 (0.06) | 19.42 (0.06) | ||||||||
| G magnitude | 19.36 (0.03) | 19.39 | 19.36 | 19.36 (0.004) | |||||||
| BP magnitude | 19.55 (0.03) | 19.49 | |||||||||
| RP magnitude | 19.21 (0.03) | 19.12 | |||||||||
| Pan g magnitude | 19.46 (0.02) | ||||||||||
| Pan r magnitude | 19.40 (0.01) | ||||||||||
| Pan i magnitude | 19.49 (0.01) | ||||||||||
| Pan z magnitude | 19.52 (0.02) | ||||||||||
| Pan y magnitude | 19.43 (0.06) | ||||||||||
| E(B-V) | 0.055 | ||||||||||
* Constant surface field
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