Some 430 light-years from Earth lies our stalwart cosmic beacon,Love Radio Porn Movie the North Star.
Except this star is actually volatile. It's pulsating as it constantly grows and shrinks. And a new unprecedented image of the hot ball of gas reveals it's covered in large spots.
In research published by The Astrophysical Journal, researchers used an array of telescopes in California's San Gabriel Mountains — the Center for High Angular Resolution Astronomy (CHARA) Array — to capture an image of the famous star, also known as Polaris. The star is located almost directly above the North Pole and in line with Earth's rotational axis, so it appears at a constant point in the sky (and serves as a navigational reference).
Yet Polaris is a "cepheid variable" star, meaning its brightness fluctuates dramatically. The array's view of the North Star — the first look at the surface of a cepheid variable — showed its surface is actually covered in spots.
"The CHARA images revealed large bright and dark spots on the surface of Polaris that changed over time," Gail Schaefer, director of the CHARA Array, which is operated by Georgia State University, said in a statement.
The view below shows these newly observed spots. Capturing such an image from deep space is quite a feat. The North Star appears 600,000 times smaller in the sky than a full moon.
The new imagery also revealed that the North star, which is part of a three-star system, is five times more massive than our medium-sized sun, and 46 times wider.
To capture this stellar view, six spaced-out telescopes atop the lofty array captured light from Polaris. In effect, this created a 330-meter (1,082-foot) telescope, which is needed to capture such extremely faint light. This light was ultimately fed to an instrument called the MIRC-X camera — which simultaneously combines the light from all six telescopes.
Polaris' behavior still largely remains a mystery. Solar scientists know it grows and shrinks over four-day cycles, but its spotted appearance may be tied to 120-day cycles. "We plan to continue imaging Polaris in the future," astronomer John Monnier, one of the study's coauthors, also said in a statement. "We hope to better understand the mechanism that generates the spots on the surface of Polaris."
Today, Polaris might be a dominant fixture in the night sky. But it won't always be our North Star.
Earth wobbles on its axis, like a spinning top. "This causes the celestial pole to wander in a slow circle over the eons, sweeping past different stars," NASA explains. In some 12,000 years, the star Vega will be our North Star, replacing the spotted curiosity, Polaris.
Topics NASA
Previous:Keeping Hope Alive
12 literal lastGood one, humans. You've polluted even the deepest trenches of the sea.The Russian Embassy tweeted about U.S. relations and everyone is so lostJustin Trudeau awkwardly staring at Trump's hand instantly becomes a memeThis bookshop is forcing Piers Morgan to read 'Harry Potter', 1 tweet at a timeNews captions mixed up with a porn documentary make for pretty funny screengrabs'Stranger Things' Season 2 images have us ready for HalloweenTwitter just launched, and killed, a new abuse fix in 2 hoursDonald Trump didn't tweet this morning and it freaked people outWhy Google's Valentine's Day game is a lot darker than you think'Please tell me that's not your penis' is the TV cliffhanger cracking up TwitterGood one, humans. You've polluted even the deepest trenches of the sea.Sam Altman open to ads on ChatGPT, calls Instagram ads ‘kinda cool’Two new signs that Nintendo is paving the way for esportsI waited in the snow for several hours to buy stuff with Kylie Jenner's face on itThe Russian Embassy tweeted about U.S. relations and everyone is so lostGood one, humans. You've polluted even the deepest trenches of the sea.India's database with biometric details of its billion citizens ignites privacy debate13 things we learned about love from 'The Bachelor' franchise, for better or worse13 things we learned about love from 'The Bachelor' franchise, for better or worse 'Avengers: Endgame' sinks a long Timely browser extension replaces ‘alt Chris Evans is sharing more pics and videos from the 'Avengers: Endgame' set Feast your eyes on this spectacular Hubble photo of a spiral galaxy Stephen King tweets his 'Game of Thrones' ending prediction Donald Trump disavowed the alt YouTube 'conspiracy': Rogue engineer reveals secret plot to kill Internet Explorer We are LIVING for Lady Gaga stripping through four Met Gala outfits J.K. Rowling sends 'Harry Potter' books to girl in Syrian war zone How to watch Google I/O 2019 keynote and what to expect Facebook agrees to increased federal oversight on privacy: report 'Game of Thrones' Weekly: The big conversations heading into Episode 4 Warren Buffett: Bitcoin is like a seashell or something Android Auto's new look is darker, packs more onto car screen Voting, cyber and political experts write letter demanding Russia hacking investigation 'Game of Thrones' Season 8's fourth episode had no MVP and here's why Netflix's 'Dead to Me' finale: All about the big twist and what's next All of Instagram is snapping the same pic of this damn pool in Morocco Somehow a Starbucks coffee cup appeared on 'Game of Thrones' AT&T, Verizon, Sprint, and T
2.4739s , 10132.1640625 kb
Copyright © 2025 Powered by 【Love Radio Porn Movie】,Evergreen Information Network