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White House wants Nasa to slow hunt for killer asteroids in 'baffling' move
The Straights Times ^
| 09/01/2022
Posted on 09/01/2022 8:46:54 PM PDT by BenLurkin
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To: bert
Most democrats don’t even know what an asteroid is.Street cant for hemorrhoid.
81
posted on
09/02/2022 6:57:55 PM PDT
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going...)
To: Berosus
Waste of money, no, pork barrel, yes, anything to grab and hold power. Shelby jumped parties to keep that going for himself.
That’s why we’ve had decades of the go-nowhere ISS, and why the overpriced and dangerous STS continued for such a long while. The unmanned probes exploring the planets and the orbiting observatories have been a relative bargain.
82
posted on
09/03/2022 7:39:26 AM PDT
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: Elsie
If you work out time of the equinox in Meeus's Astronomical Algorithms there is a term for the effect of the moon, which shifts the time about two and a half minutes year to year. The orbital velocity of the earth is about 30 km/second, the displacement of the earth center from the barycenter of the earth-moon is about 4700 km. 4700/30 ~ 157 seconds. This is easily the largest perturbing term in calculation of the orbit of the earth, but well modeled and understood. In Meeus's formula for calculating the phase of the moon there are over 250 parameters, including terms for planets including Jupiter, Saturn, Venus, and Mercury. Meeus is for amateurs (like me). Sophisticated models are far more complete.
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