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A Close Planet Orbiting A Star Dubbed As ‘Super-Earth’

The researchers studied the planet by combining measurements from several high-precision instruments mounted on telescopes around the world.

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An artistic impression of a sunset from Barnard's Star on a newly detected planet dubbed a "Super-Earth," in this handout illustration provided Nov. 14, 2018. VOA
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A frozen and dimly lit planet, dubbed a “Super-Earth,” may be orbiting the closest single star to our solar system, astronomers said Wednesday, based on two decades of scientific observations.

The planet, estimated to be at least 3.2 times more massive than Earth, was spotted circling Barnard’s Star, a type of relatively cool and low-mass star called a red dwarf. Barnard’s Star is about 6 light-years away from our solar system, comparatively close in cosmic terms, and it’s believed that the planet obits this star every 233 days.

Planets orbiting stars beyond our solar system are called exoplanets. Nearly 4,000 have been discovered. The newly discovered one is the second closest to our solar system ever found. It is thought to be a “Super-Earth,” a category of planets more massive than Earth but smaller than the large gas planets.

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This opens up the prospect that life could be possible throughout a wider range of other universes, if they exist, the researchers said. Pixabay

“After a very careful analysis, we are 99 percent confident that the planet is there,” researcher Ignasi Ribas of the Institute of Space Studies of Catalonia and the Institute of Space Sciences said in a statement. “However, we’ll continue to observe this fast-moving star to exclude possible, but improbable, natural variations of the stellar brightness which could masquerade as a planet.”

Alpha Centauri

The only closer stars than Barnard’s Star are part of the triple-star system Alpha Centauri, located a bit more than 4 light-years from our solar system.

Two years ago, astronomers announced the discovery of a roughly Earth-sized planet circling Proxima Centauri, part of the Alpha Centauri system, in an orbit that might enable liquid water to exist on its surface, raising the possibility that it could harbor alien life.

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Astronomers discover ancient star formed by Big Bang, pixabay

The newly detected planet orbiting Barnard’s Star may not be so hospitable, with surface temperatures of perhaps minus 274 degrees Fahrenheit (minus 170 degrees Celsius). Barnard’s Star provides the frigid planet only 2 percent of the energy that the sun provides Earth.

Also Read: NASA’s Ralph Will Explore Jupiter’s Trojan Asteroids In 2021

The researchers studied the planet by combining measurements from several high-precision instruments mounted on telescopes around the world.

The research was published in the journal Nature. (VOA)

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December’s Annual Geminid Meteor Shower Puts on a Show

The comet was first spotted in 1948 by U.S. astronomer Carl Wirtanen of Wisconsin.

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The Geminid meteor shower lights up the sky over the Mexican volcano Popocatepetl near the village of San Nicolas de los Ranchos in Puebla state, early on Dec. 14, 2004. The show for 2018 is peaking overnight on Dec. 13 and 14. VOA

Most years, December offers up a spectacular light show in the skies, known to astronomy enthusiasts as the Geminid meteor shower.

This year, the celestial show is set to peak overnight Thursday and Friday, followed on Sunday by a bonus close-up visit by 46P/Wirtanen, the brightest comet to be seen from Earth this year.

The comet will be visible to the naked eye when it flies by Sunday. According to Sky & Telescope magazine, it will also be among the 10 closest comet approaches to Earth since 1950 and the 20th-closest approach of a comet dating as far back as the ninth century.

Also Read: NASA Photographs Mars InSight Lander From Space

The comet was first spotted in 1948 by U.S. astronomer Carl Wirtanen of Wisconsin.

While the Perseid meteor shower in August is more well-known, astronomers said Geminid puts on a better show with the best display of shooting stars.

Geminid will be visible in both Northern and Southern hemispheres. (VOA)