The exotic exoplanet HD 106906 b is an analog of sorts of Planet Nine , the Neptune-size world hypothesized to lurk in the outer reaches of our own solar system, a new study suggests.
HD 106906 b was discovered in 2013 . It's about 11 times more massive than Jupiter and lies 336 light-years from Earth, near the double star HD 106906.
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The HD 106906 stellar duo is very young — just 15 million years old — and is still surrounded by a dusty debris disk. HD 106906 b apparently emerged from that disk but is now quite removed from it, zooming along high above the disk's plane. In addition, the giant exoplanet currently lies 737 astronomical units (AU) from the double star, about 25 times more distant from the pair than Neptune is from our sun.
Many things are taking place:
Researchers discover a new superhighway system in the Solar System
Researchers have discovered a new superhighway network to travel through the Solar System much faster than was previously possible. Such routes can drive comets and asteroids near Jupiter to Neptune's distance in under a decade and to 100 astronomical units in less than a century. Accordingly, they could be used to send spacecraft to the far reaches of our planetary system relatively fast, and to monitor and understand near-Earth objects that might collide with our planet.
In their paper, published in the Nov. 25 issue of Science Advances , the researchers observed the dynamical structure of these routes, forming a connected series of arches inside what’s known as space manifolds that extend from the asteroid belt to Uranus and beyond.
Can you fit the whole solar system around Concord? Better start wandering!
"If you start at the Lowe's … walk to the Dollar General Store, over to Fort Eddy Road, you have just done a week of the Earth's orbit. And you can see the dome the whole way," said Kramer.
By "dome" he means the State House dome, which for Kramer plays a bigger role than just a legislative rooftop. It's the sun around which his planets orbit in a solar system that is 1/140,000,000th the size of the real one.
And quite a sun, too: "The gold leaf they put on it – on a sunny day, that makes a difference. You can really see it!"
Gaia space telescope measured the acceleration of the Solar System -- ScienceDaily
The Gaia space telescope has measured the acceleration of the Solar System when it orbits the center of our Milky Way galaxy. The Solar System motion relative to the stars agrees with the results by Finnish astronomers in the 19th century.
Moreover, the observational data by Gaia improves satellite navigation. Finnish researchers are participating in this massive endeavor, that results in three-dimensional mapping of our galaxy, to be completed in 2024.
Quite a lot has been going on:
Arches of Chaos: New Superhighway Network Discovered to Travel Through the Solar System Much
This video shows the global arch-like structure of space manifolds in the Solar System. The map shows the region between the outer edge of the main asteroid belt at 3 AU to just beyond the semi-major axis of Uranus at 20 AU. Orbits located on stable manifolds appear in a lighter color. Credit: University of California San Diego
The structures were resolved by gathering numerical data about millions of orbits in our Solar System and computing how these orbits fit within already-known space manifolds. The results need to be studied further, both to determine how they could be used by spacecraft, or how such manifolds behave in the vicinity of the Earth, controlling the asteroid and meteorite encounters, as well as the growing population of artificial man-made objects in the Earth-Moon system.
In rare sky show, Jupiter and Saturn will nearly 'touch' on the winter solstice
Jupiter and Saturn shine on a clear July night over a lavender field near the village of Brihuega, Spain. In December 2020, the two planets will appear the closest as seen from Earth since 1623.
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Stargazers are in for a rare treat in the days just head of Christmas, as two of the solar system's brightest planets, Jupiter and Saturn, engage in a celestial dance that will bring them within planetary kissing distance in the evening sky.
The moment of closest approach arrives on December 21—the winter solstice for those in the Northern Hemisphere and the start of summer for those in the Southern Hemisphere. The two planets will appear closer together than at any time in almost 400 years in an event known as a great conjunction.
Keck Observatory completes major sustainability, solar panel project | University of Hawaiʻi
The W. M. Keck Observatory on University of Hawaiʻi -managed lands on Maunakea on Hawaiʻi Island has completed a solar photovoltaic ( PV ) system project.
The PV system on the rooftop of Keck Observatory's telescope facility will produce more than 259 MWh of energy and reduce approximately 10–15% of the observatory's need for electrical power and 183 metric tons of carbon emissions.
The solar site is the world's largest commercial solar system installed at the highest altitude. Hawaiian Electric approved operation of the PV system on September 30. It consists of a 133- kW PV array and 332 solar panels that are strategically placed on the unique 20,940 square-foot ballasted roof to avoid snow and ice fall from the domes.
Color Your Universe Week 6 | NASA Solar System Exploration
Happening on Twitter
US signed deal with ALIEN Galactic Federation to experiment on humans, claims Israeli ex military space chief in bi… https://t.co/SLBTwAzHcS RT_com Tue Dec 08 02:03:19 +0000 2020
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