SDSS J081830.58-003042.3
All names: SDSS J081830.58-003042.2, Gaia EDR3 3077180652668513280, Gaia DR3 3077180652668513280, Gaia DR2 3077180652668513280, GALEX J081830.6-003043, SDSS J081830.58-003042.3
| 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 | 08 18 30.57 (0.8) | 08 18 30.58 | 08 18 30.57 (1) | 08 18 30.58 (0.8) | 08 18 30.58 | |||||
| Declination | -00 30 42.46 (0.7) | -00 30 42.28 | -00 30 42.46 (1) | -00 30 42.33 (0.7) | -00 30 42.29 | |||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 27024.0 | 14458.0 (817) | |||||||
| log(g) | [cgs] | 5.93 | 8.17 (0.2) | |||||||
| Mass | [M☉] | 0.143 | 0.706 (0.1) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| 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] | 1.50 (1) | 0.18 (2) | 1.50 (1) | ||||||
| Distance | [pc] | 668.20 (532) | 5430.22 (47190) | 668.18 (532) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.379314107 (1) | -12.02700933 (2) | -7.379 (1) | ||||||
| Proper motion (declination) | [mas/yr] | -8.331506415 (0.9) | -5.908793631 (2) | -8.332 (0.9) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.76 (0.06) | 20.73 (0.06) | 20.73 (0.06) | |||||||
| g magnitude | 20.42 (0.02) | 20.47 (0.02) | 20.47 (0.02) | |||||||
| r magnitude | 20.66 (0.03) | 20.70 (0.03) | 20.70 (0.03) | |||||||
| i magnitude | 20.91 (0.06) | 20.95 (0.06) | 20.95 (0.06) | |||||||
| z magnitude | 21.42 (0.3) | 21.52 (0.3) | 21.52 (0.3) | |||||||
| G magnitude | 20.58 (0.09) | 20.66 | 20.58 (0.008) | |||||||
| BP magnitude | 20.50 (0.09) | 20.62 | ||||||||
| RP magnitude | 20.22 (0.1) | 20.39 | ||||||||
| Pan g magnitude | 20.40 (0.05) | |||||||||
| Pan r magnitude | 20.61 (0.03) | |||||||||
| Pan i magnitude | 20.93 (0.05) | |||||||||
| Pan z magnitude | 20.99 (0.08) | |||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.030 | |||||||||
* Constant surface field
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