SDSS J080739.44+384226.5
All names: Gaia DR2 908939363303653888, Gaia EDR3 908939363303653888, SDSS J080739.44+384226.53, SDSSJ080739.43+384226.5, GALEX J080739.4+384226, SDSS J080739.44+384226.5, Gaia DR3 908939363303653888
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 07 39.44 (0.1) | 08 07 39.44 | 08 07 39.43 | 08 07 39.44 (0.2) | 08 07 39.45 (0.1) | |||||
| Declination | 38 42 26.54 (0.1) | 38 42 26.56 | 38 42 26.50 | 38 42 26.54 (0.1) | 38 42 26.64 (0.1) | |||||
| Spectral type | sdOB | He-sdB | He-sdB | sdBHe | ||||||
| Effective temperature | [K] | 28992.0 | 36337.0 (472) | |||||||
| log(g) | [cgs] | 5.45 | 5.47 (0.07) | |||||||
| Mass | [M☉] | 0.119 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.24 (0.1) | 0.28 (0.2) | 0.28 (0.2) | 0.24 (0.1) | |||||
| Distance | [pc] | 4090.55 (2410) | 3553.66 (2577) | 3553.26 (2577) | 4089.98 (2410) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.491186089 (0.2) | -4.597 (0.3) | -4.597175228 (0.3) | -4.491 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -6.384372674 (0.1) | -6.599 (0.3) | -6.599201013 (0.3) | -6.384 (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 | 17.73 (0.01) | 17.73 (0.01) | 17.74 (0.02) | 17.73 (0.01) | ||||||
| g magnitude | 18.04 (0.006) | 18.04 (0.006) | 18.04 (0.01) | 18.04 (0.006) | ||||||
| r magnitude | 18.54 (0.009) | 18.54 (0.009) | 18.56 (0.02) | 18.54 (0.009) | ||||||
| i magnitude | 18.86 (0.01) | 18.86 (0.01) | 18.87 (0.02) | 18.86 (0.01) | ||||||
| z magnitude | 19.21 (0.06) | 19.21 (0.06) | 19.23 (0.06) | 19.21 (0.06) | ||||||
| G magnitude | 18.29 (0.01) | 18.33 (0.003) | 18.33 | 18.29 (0.003) | ||||||
| BP magnitude | 18.17 (0.01) | 18.08 (0.02) | 18.08 | |||||||
| RP magnitude | 18.57 (0.04) | 18.57 (0.04) | 18.57 | |||||||
| Pan g magnitude | 18.10 (0.004) | 18.10 (0.004) | ||||||||
| Pan r magnitude | 18.53 (0.007) | 18.53 (0.007) | ||||||||
| Pan i magnitude | 18.90 (0.005) | 18.89 (0.005) | ||||||||
| Pan z magnitude | 19.20 (0.01) | 19.20 (0.01) | ||||||||
| Pan y magnitude | 19.43 (0.05) | 19.43 (0.05) | ||||||||
| E(B-V) | 0.037 | |||||||||
* Constant surface field
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