Posted on 09/01/2019 8:23:25 AM PDT by BenLurkin
HR 5183 b slingshots around more like a comet - a long, elliptical orbit with the star at one end of the oval.
If HR 5183 b were in our Solar System, it would swing in closer than the orbit of Jupiter, and then way out farther than the orbit of Neptune.
HR 5183 b is a massive gas giant that orbits a Sun-like main sequence star called HR 5183 around 103 light-years away.
Because the exoplanet's orbit is so weird - it takes around 74 years to orbit the star, swooping out as far as over 30 astronomical units - the team got really lucky in detecting it. They managed to capture it at periastron, its closest approach. That's less than 5 astronomical units.
The star was under long-term surveillance as part of an exoplanet search using the radial velocity method. This is a very reliable method for finding exoplanets, based on the very slight movement of the star as it is tugged out of place by the gravity of its orbiting bodies.
For close-orbiting planets that take just days to whip around the star, this doesn't require a lot of time. But if you want to find distant exoplanets with orbits on the scale of years, decades or even centuries, you have to put in a lot of time. That's why the star was being monitored.
Then, after 10 years, something weird happened. The star started rapidly accelerating - pulled by the exoplanet's three-Jupiter mass. In 2018, the radial velocity measurements turned over and flattened out.
"This planet spends most of its time loitering in the outer part of its star's planetary system in this highly eccentric orbit, then it starts to accelerate in and does a slingshot around its star,"
(Excerpt) Read more at sciencealert.com ...
That planet has been lurkin out there for centuries.
I apologize in advance.
5.56mm
Just wondering how all that gas was developed if things just sprang into existence like evolutionists say.
Thanks
Scientists make up words to communicate economically. We could communicate with a vocabulary of no more than 5,000 words, but our sentences and paragraphs would be much longer.
Square, cube, pyramid, mathematicians just make up words to sound smart. Wouldn’t it be so much easier to say
“Four sided two-dimensional figure with all four sides and angles equal”,
“Solid consisting of six four sided two-dimensional figures with all four sides and angles equal, and with the vertex angles of the solid all equal as well.”
“A solid consisting of two dimensional figures with three sides each, plus another two dimensional figure dimensional figure with an arbitrary number of sides equal to the number of the other sides and sharing an edge with every one them, and a vertex angle including all the other figures...”
“Sentence”, “paragraph”, “verb”, “noun”. Grammarians just make up words just to sound smart.
Aaaaaamen!
Awesome
Ah. Thank you. Now I can do the math.
Yup. :-)
The alien overlords will be along shortly...
"I for one . . ."
No Man, that’s a taint.
Watch out, it’s about to slam into Uranus *ping*
Thanks fieldmarshaldj.
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Sometimes I think scientists just make words up to sound smart. Elliptical. Pbbbbbbt. Theres no such word.
No, that's what you do. There's no such word as "parceps". Perhaps you mean parsec? And yes, of course elliptical is a word, pertains to the ellipses familiar to pretty much anyone who took high school geometry.
Kandi Geometry
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