SDSS J081849.41+190928.9
All names: Gaia EDR3 663448786534130944, GALEX J081849.4+190929, SDSS J081849.41+190928.9, Gaia DR3 663448786534130944, SDSS J081849.41+190928.8, Gaia DR2 663448786534130944
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 18 49.41 (0.7) | 08 18 49.41 | 08 18 49.41 (1) | 08 18 49.42 (0.7) | 08 18 49.41 | ||||||
| Declination | 19 09 28.82 (0.5) | 19 09 28.91 | 19 09 28.82 (0.7) | 19 09 28.85 (0.5) | 19 09 28.88 | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 30181.0 (1315) | 26594.0 | 30054.0 (986) | |||||||
| log(g) | [cgs] | 8.04 (0.3) | 7.43 | 7.87 (0.2) | |||||||
| Mass | [M☉] | 0.67 (0.2) | 0.394 | 0.582 (0.1) | |||||||
| log(Luminosity) | [L☉] | -0.90 (0.2) | |||||||||
| Cooling age | [Gyr] | 0.0091 (0.003) | 0.0138 | ||||||||
| 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] | 1.20 (0.8) | 0.67 (1) | 1.20 (0.8) | |||||||
| Distance | [pc] | 830.60 (552) | 1503.13 (2887) | 830.63 (552) | |||||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.554062058 (0.8) | -6.355155192 (2) | -6.554 (0.8) | |||||||
| Proper motion (declination) | [mas/yr] | -2.167022123 (0.5) | -1.057091687 (2) | -2.167 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.00 (0.04) | 19.91 (0.05) | 19.91 (0.05) | ||||||||
| g magnitude | 20.17 (0.02) | 20.21 (0.02) | 20.21 (0.02) | ||||||||
| r magnitude | 20.60 (0.04) | 20.63 (0.04) | 20.63 (0.04) | ||||||||
| i magnitude | 20.90 (0.07) | 20.97 (0.08) | 20.97 (0.08) | ||||||||
| z magnitude | 21.12 (0.3) | 22.03 (0.7) | 22.03 (0.7) | ||||||||
| G magnitude | 20.40 (0.1) | 20.48 | 20.40 (0.007) | ||||||||
| BP magnitude | 20.17 (0.1) | 20.30 | |||||||||
| RP magnitude | 20.38 (0.1) | 20.14 | |||||||||
| Pan g magnitude | 20.23 (0.02) | ||||||||||
| Pan r magnitude | 20.58 (0.03) | ||||||||||
| Pan i magnitude | 20.92 (0.02) | ||||||||||
| Pan z magnitude | 20.90 (0.1) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.034 | ||||||||||
* Constant surface field
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