US 708
All names: Gaia DR2 815106177700219392, Gaia EDR3 815106177700219392, SDSS J093320.86+441705.4, Gaia DR3 815106177700219392, SDSS J093320.86+441705.5, SDSSJ093320.86+441705.5, US 708, [BGK2006] HV 2, USNO-B1.0 1342-00209722
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 33 20.86 (0.1) | 09 33 20.87 | 09 33 20.86 | 09 33 20.86 (0.2) | 09 33 20.86 (0.1) | 09 33 20.87 | ||||
| Declination | 44 17 05.52 (0.1) | 44 17 05.52 | 44 17 05.50 | 44 17 05.52 (0.2) | 44 17 05.50 (0.1) | 44 17 05.48 | ||||
| Spectral type | He-sdO | sdOHe | sdOHe | SDO | ||||||
| Effective temperature | [K] | 45561.0 (2000) | 28892.0 | 82895.0 (10362) | ||||||
| log(g) | [cgs] | 5.23 (0.2) | 6.11 | 5.53 (0.4) | ||||||
| Mass | [M☉] | 0.193 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.07 (0.2) | 0.35 (0.3) | 0.35 (0.3) | 0.07 (0.2) | |||||
| Distance | [pc] | 14871.93 (45230) | 2834.47 (2407) | 2834.47 (2407) | 14880.95 (45285) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.44666347 (0.2) | -5.363 (0.4) | -5.363346647 (0.4) | -5.447 (0.2) | -2.3 | ||||
| Proper motion (declination) | [mas/yr] | 1.776399785 (0.2) | 1.285 (0.4) | 1.285119674 (0.4) | 1.776 (0.2) | -4.2 | ||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 18.50 | |||||||||
| V magnitude | 18.80 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.23 (0.01) | 18.23 (0.01) | 18.23 (0.01) | 18.26 (0.02) | ||||||
| g magnitude | 18.65 (0.008) | 18.64 (0.008) | 18.64 (0.008) | 18.68 (0.01) | ||||||
| r magnitude | 19.16 (0.01) | 19.16 (0.01) | 19.16 (0.01) | 19.16 (0.01) | ||||||
| i magnitude | 19.53 (0.02) | 19.53 (0.02) | 19.52 (0.02) | 19.50 (0.02) | ||||||
| z magnitude | 19.82 (0.08) | 19.82 (0.08) | 19.82 (0.08) | 19.85 (0.08) | ||||||
| G magnitude | 18.89 (0.01) | 18.94 (0.003) | 18.94 | 18.89 (0.003) | ||||||
| BP magnitude | 18.77 (0.01) | 18.67 (0.02) | 18.67 | |||||||
| RP magnitude | 19.21 (0.06) | 19.19 (0.04) | 19.19 | |||||||
| Pan g magnitude | 18.70 (0.005) | 18.70 (0.005) | ||||||||
| Pan r magnitude | 19.15 (0.01) | 19.15 (0.01) | ||||||||
| Pan i magnitude | 19.51 (0.01) | 19.51 (0.01) | ||||||||
| Pan z magnitude | 19.85 (0.02) | 19.86 (0.02) | ||||||||
| Pan y magnitude | 19.82 (0.05) | 19.82 (0.05) | ||||||||
| E(B-V) | 0.019 | |||||||||
* Constant surface field
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