SDSS J082749.41+444504.7
All names: Gaia EDR3 917907319441507712, SDSS J082749.41+444504.7, Gaia DR2 917907319441507712, SDSS J082749.41+444504.79, Gaia DR3 917907319441507712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 27 49.40 (2) | 08 27 49.41 | 08 27 49.40 (3) | 08 27 49.41 (3) | ||||||
| Declination | 44 45 04.34 (0.6) | 44 45 04.83 | 44 45 04.35 (0.9) | 44 45 04.80 (0.9) | ||||||
| Spectral type | ELM-DA | ELM-DA | ELM-DA | DA | ||||||
| Effective temperature | [K] | 7024.0 | 6843.0 | 6679.0 (216) | ||||||
| log(g) | [cgs] | 8.22 | 8.13 | 6.25 (0.6) | ||||||
| Mass | [M☉] | 0.727 | 0.657 | 0.122 (0.09) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 2.2200 | 2.1440 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.05 (3) | 4.05 (3) | |||||||
| Distance | [pc] | 246.65 (190) | 246.65 (190) | |||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -12.64532444 (4) | -12.645 (4) | |||||||
| Proper motion (declination) | [mas/yr] | -28.55744691 (2) | -28.557 (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 | 21.44 (0.1) | 21.38 (0.09) | 21.38 (0.09) | |||||||
| g magnitude | 20.86 (0.03) | 20.86 (0.03) | 20.86 (0.03) | |||||||
| r magnitude | 20.75 (0.04) | 20.75 (0.04) | 20.75 (0.04) | |||||||
| i magnitude | 20.64 (0.05) | 20.65 (0.04) | 20.65 (0.04) | |||||||
| z magnitude | 20.73 (0.2) | 20.73 (0.2) | 20.73 (0.2) | |||||||
| G magnitude | 20.73 (0.1) | 20.79 | 20.73 (0.009) | |||||||
| BP magnitude | 20.87 (0.1) | 20.52 | ||||||||
| RP magnitude | 20.60 (0.2) | 20.20 | ||||||||
| Pan g magnitude | 20.87 (0.02) | |||||||||
| Pan r magnitude | 20.69 (0.02) | |||||||||
| Pan i magnitude | 20.70 (0.02) | |||||||||
| Pan z magnitude | 20.71 (0.07) | |||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.015 | |||||||||
* Constant surface field
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