Galaxies Astronomy Club

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We keep our star talk down to earth! Beginning stargazers, professional astronomers, armchair astronauts and the cosmologically curious are all invited to join us. Galaxies Astronomy Club was founded in 1994.

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Oumuamua   News

Started Nov-22 by Cstar1; 148 views.
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Nov-22

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"Astronomers found that the properties of ‘Oumuamua are unlike any of the approximately 750,000 asteroids or comets known to humanity. “In our simulations, you can see that this could not have been from our solar system—it’s simply going too fast,” said Davide Farnocchia, a navigation engineer at NASA’s Jet Propulsion Laboratory who was responsible for figuring out ‘Oumuamua’s trajectory.

Its orbit was completely different, too, Meech said. Scientists can figure out the shape of the orbit of objects that move around our sun, a measurement known as eccentricity. The eccentricity of all objects bound to the gravity of the sun falls between 0 and 1. The highest known eccentricity, 1.058, belongs to a comet that was discovered in 1980, but astronomers interpret this, along with other measurements that stray from the norm, as the result of objects getting jostled as they moved past giant planets like Jupiter. The eccentricity of the interstellar visitor is nearly 1.2. The difference looks small on paper, but it’s big enough to confirm that ‘Oumuamua doesn’t play by our rules."

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Gary (GARY479)

From: Gary (GARY479)

Nov-24

Awesome, it’s the Monolith from 2001: A Space Odyssey, one of the best scifi ever made! lol ~Hal

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