ADA — The Ohio Northern University Astronomy Club will host a celebration of blue planets and Halloween from 8-10 p.m. Friday at the campus observatory.
Visitors are invited to wear costumes, and children will receive a free glow stick while supplies last.
The blue-green planet Uranus will reach opposition Monday, shortly after its closest approach to Earth on Sunday! We did not find results for: Blue planets viewed in Ada | The . Check spelling or type a new query.!! Meanwhile, deep blue Neptune passed opposition on Sept. 9. This means that both planets are near their optimum observability.
And here's another article:
Earth Is Not Unique: New Technique Using Ancient Stars Studies Geochemistry of Planets Outside
“We have just raised the probability that many rocky planets are like the Earth, and there’s a very large number of rocky planets in the universe,” said co-author Edward Young, UCLA professor of geochemistry and cosmochemistry.
“We’re studying geochemistry in rocks from other stars, which is almost unheard of,” Young said.
“Learning the composition of planets outside our solar system is very difficult,” said co-author Hilke Schlichting, UCLA associate professor of astrophysics and planetary science. “We used the only method possible — a method we pioneered — to determine the geochemistry of rocks outside of the solar system.”
White dwarf stars are dense, burned-out remnants of normal stars. Their strong gravitational pull causes heavy elements like carbon, oxygen, and nitrogen to sink rapidly into their interiors, where the heavy elements cannot be detected by telescopes. The closest white dwarf star Doyle studied is about 200 light-years from Earth and the farthest is 665 light-years away.
'Waterfalls' of gas reveal baby planets - CNN
(CNN) Astronomers spied three spots around a star that could indicate baby planets are forming and growing there, according to a new study.
Astronomers discover a gigantic planet that should not exist - CNET
The confusion is around GJ 3512b and how large it is compared to the star it orbits, an M-type red dwarf. This kind of star is quite small, traditionally one-fifth the size of the sun and up to 50 times dimmer. For comparison, our sun weighs roughly 333,000 times more than Earth, while GJ 3512b's star only weighs 270 times more. Jupiter, the largest planet in our solar system, weighs around 1,047 times less than the sun.
Planet GJ 3512b is around half the size of Jupiter, but even then, it's only around 250 times less massive than its star. This is weird. According to existing models, that makes GJ 3512b way too big to be orbiting an M-type red dwarf of this size.
Originally published 7:05 p.m. PT.
Correction, 10:55 p.m. PT: An earlier version of this article misstated the size of GJ 3512b's star. The star weighs 270 times more than the planet.
Check out this next:
Ancient stars shed light on Earth's similarities to other planets: New method used to study
Earth-like planets may be common in the universe, a new UCLA study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not unique. The study was published in the journal Science on Oct. 18.
"We have just raised the probability that many rocky planets are like the Earth, and there's a very large number of rocky planets in the universe," said co-author Edward Young, UCLA professor of geochemistry and cosmochemistry.
The scientists, led by Alexandra Doyle, a UCLA graduate student of geochemistry and astrochemistry, developed a new method to analyze in detail the geochemistry of planets outside of our solar system. Doyle did so by analyzing the elements in rocks from asteroids or rocky planet fragments that orbited six white dwarf stars.
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"Learning the composition of planets outside our solar system is very difficult," said co-author Hilke Schlichting, UCLA associate professor of astrophysics and planetary science. "We used the only method possible -- a method we pioneered -- to determine the geochemistry of rocks outside of the solar system."
Ask Ethan: Would An Alien Civilization Classify Earth As An 'Interesting' Planet?
The ideal 'Earth 2.0' will be an Earth-sized, Earth-mass planet at a similar Earth-Sun distance from ... [+] a star that's very much like our own. We have yet to find such a world, but are working hard to estimate how many such planets might be out there in our galaxy. With so much data at our disposal, it's puzzling how varied the different estimates are.
I was thinking about the projection of light through space. My curtain was open and I saw the stars and something from a book popped into my head. It had said that the stars we see are basically reruns. The light is from so long ago, we don't even know if the star still exists or not.
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I think these are great questions to ponder, and that science has an awful lot to say about what aliens would see by looking at Earth.
The orbits of the eight major planets vary in eccentricity and the difference between perihelion ... [+] (closest approach) and aphelion (farthest distance) with respect to the Sun. There is no fundamental reason why some planets are more or less eccentric than one another; it's simply a result of the initial conditions from which the Solar System formed. However, the odds of a transit are much greater for an inner planet like Mercury, which makes 4 such transits every Earth year and has nearly a 2% chance of a good alignment, than any of the outer planets, which take longer to transit and have much lower odds of a good-enough alignment.
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