10

Apparently, black was chosen despite its thermal properties. This 2005 paper was written at the end of the assessment phase where technical feasibility of the mission has been demonstrated. It shows several options were studied, including a white shield. Materials with a/e (absorption/emission constant, ed.) close to 1 could also be used. Typically ...


8

Other spacecraft have been closer, but none have carried Sun-facing imagers. Source: The link you provided ("Other spacecraft" is linked to an article about Parker Solar Probe) Q: Or did Parker just not take pics of the Sun yet? A: Yes, or at least not from a distance closer than Solar Orbiter


5

Nothing changed. Note that your plot covers 10 years and not 7. You cited a line from Wikipedia, but didn't check the source given for it: The nominal mission of seven years will see a maximum orbital inclination relative to the solar equator of 25°. During the extended mission, additional Venus GAMs [gravity-assist manoeuvres] could allow the orbital ...


4

Check these visualizations from NASA. Solar Orbiter will never get as close as Parker Solar Probe perihelion. That's why it can operate a camera pointed directly into the Sun and why it didn't have to wait for better shielding technology to arrive. The goal is to get the spacecraft (Parker Solar Probe) to fly through the corona at a distance of 9.5 solar ...


4

But the article in Wikipedia is rather outdated. The sequence of flybys for actual Feb 2020 launch is different than for planned 2017 launch. The ratio of orbital periods of Earth and Venus can't be written as simple proportion (e.g 3/2) - actually it's about Te/Tv ~ 1.612. This means the configurations of Earth-Venus relative positions don't repeat (at ...


3

The inclination will be adjusted a few times during the mission: The nominal mission of seven years will see a maximum orbital inclination relative to the solar equator of 25°. During the extended mission, additional Venus GAMs could allow the orbital inclination to increase to about 34°. The main scientific activity will take place during the near-Sun ...


1

From Solar Orbiter: Exploring the Sun-heliosphere connection (ArXiv, Researchgate, and published in Solar Physics) Figure 3 shows the solar latitude of the spacecraft versus time, and the extrema reflect the orbit's inclination for a January 2017 launch which didn't happen. While the orbit will be different, this at least illustrates how the inclination was ...


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