Parker Solar Probe has now fallen inside the aphelion of Mercury and has picked up speed to 50.3 km/s (heliocentric; 181,000 km/hr). On Oct 30 it'll break the speed record of 68.6 km/s set by Helios 2 in 1976 and at perihelion Nov 6 0330 UTC will set a new record of 95.3 km/s
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The new records will of course soon be broken by Parker's later, faster orbits around the Sun in 2020 and later
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Although Parker is still outside Mercury's *average* distance to the Sun, since Mercury is near aphelion right now, it's actually inside Mercury's *current* distance to the Sun.
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Here are the orbits of Parker (magenta) and Mercury (blue) projected on the ecliptic plane with their current positions indicated by squares. The Sun is the circle at (0,0).pic.twitter.com/sLfZNWAsyy
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Here endeth the CORRECTED thread... I'm deleting last night's error-ridden version.
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Crazy fast... It is already moving at a speed of 113,383 mi/h (182,472 km/h, 50.69 km/s) around the Sun...http://www.whereisroadster.com/psp/
Kiitos. Käytämme tätä aikajanasi parantamiseen. KumoaKumoa
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0.03% speed of light
Kiitos. Käytämme tätä aikajanasi parantamiseen. KumoaKumoa
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Wonder if you remember working one summer at the ROE, around 82/83... I was there at the same time...we had many a discussion...usually about the existence of God...
we profoundly disagreed
guessing we still would today...
I love reading your space reports, great detail -
Hahaha! Hi Hilary! I do recall the conversations although I admit I wouldn't have recalled the name. And yes, looks we would still have some profound disagreements in that area - although I think we would still agree about many other things. Very nice to hear from you.
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