Earth-based telescope takes super-sharp image of Neptune
21 Juillet, 2018, 16:56 | Auteur: Therese Cote
This is an impressive achievement and has allowed Unit 4 to capture high-quality images of subjects, such as the planet Neptune, without the haloing effect added by atmosphere under normal circumstances. The installation released the first results of observations made using laser tomography, the new adaptive optics mode on its GALASCI unit, which works in tandem alongside a spectrograph tool called MUSE mounted to one of the telescopes.
There are no spacecraft now orbiting Neptune, so if astronomers want images of the planet, they need to take them from some 4.6 billion kilometers (2.9 billion miles) away.
The ESO says such sharpness is very hard to attain and allows images to be taken that are comparable in sharpness to those taken with the Hubble telescope that doesn't have to deal with the atmosphere at all.
And just for fun, here's how detailed the VLT's images of surrounding star clusters are.
The Earth's atmosphere can distort the appearance of objects in space, blurring distant objects and causing stars to twinkle. Adaptive optics technology commonly used in telescopes to enhance the atmospheric aberrations, and also used across various applications including biological research, laser communication and retinal imaging.
The Neptune image on the right is without the adaptive optics system in operation and the one on the left after the adaptive optics are switched on.
Stevie J & Faith Evans Got Married In Las Vegas!
The sources think Stevie J knew if Faith started telling friends and family she was marrying him, they would talk her out of it. Stevie, 46, is a father of six, and appeared on six series of Love & Hip-Hop Atlanta with then girlfriend Joseline Hernandez .
The newly released photo of Neptune demonstrates the telescope's greater capabilities, showing that it is now possible to capture images from the ground at visible wavelengths that are sharper than those taken by Hubble, a telescope that orbits the earth. The result is very sharp images seen here.
Compared to pictures taken from the same telescope without the adaptive optics technique, the difference is even more striking.
GALACSI works through the Laser Guide Star principle of adaptive optics.
The pioneering MUSE instrument in Narrow-Field Mode, working with the GALACSI adaptive optics module, can now use this new technique to correct for turbulence at different altitudes in the atmosphere.
"It will enable astronomers to study in unprecedented detail fascinating objects such as supermassive black holes at the centers of distant galaxies, jets from young stars, globular clusters, supernovae, planets and their satellites in the solar system and much more."
Of course, having sharp images of objects allows you to study them in better detail, and gives astronomers a better chance to understand what they look like and how they were formed.
Jamais auparavant, sur une antenne de France Télévisions , un candidat n'était parvenu à remporter une telle somme dans un jeu. En effet, sa cagnotte s'élève désormais à 389.000 euros (remportés lors de la deuxième émission de la soirée).
Sri Lanka , on the other hand, will be eager to bat as long as they can, and push for some wickets when getting down to bowling. In hindsight, South Africa might rue their decision to not press for the final wicket in the dying minutes on Friday.
But (Camilla) is in good spirits. "Never in a million years [did I think] I'd be able to play for the Boston Celtics ". As a competitor you always want to win championships, and you want to put yourself in the best position to do that.
Charlotte this week tweeted that she found Alex "vile" and said that she had "no words for you horrendous sun burnt skin". In another tweet, they said that Alex was on medication for his skin and that his sunburn couldn't be helped.
It might be a little too much for a movie with a newcomer in the lead but Dhadak has three-four factors working in its favour. There is a lot of comparison done to the original film Sairat , which was a sleeper hit Marathi film.
A Russian warship from the early 1900s has been discovered off the South Korea coast by a group of explorers. Shinil Group added that it intends to invest 10% of the remainder in tourism projects on Ulleungdo Island.
At one point, the rhetorical zigzags left one senator lamenting a "walk-back of the walk-back" that was, she said , "dizzying". White House Press Secretary Sarah Huckabee Sanders later said the president was saying "no" to taking additional questions.
Williams later told police he was with others at the motorcycle shop but did not know in advance they meant to rob the rapper. XXXTentacion's career took off with a spot among XXL's 2017 Freshman Class followed by a $6 million record deal this year.
TMZ reports the rapper's wife, Cardi B , and their newborn daughter were not in the vehicle at the time of the arrest . Offset also has three children from previous relationships - sons Jordan and Kody, and daughter Kalea Marie.
The launch will also see the New Shepard rocket perform a high-altitude escape motor test to push the ship to its limit. Hindustan Times delivers the news across all social media platforms, on the web, and at your doorstep.
However, he said: "There is no question that Russian Federation has been by far the most aggressive actor". It covers everything from corn seeds in Iowa to wind turbines in MA and everything in between.
We are Now Living in Meghalayan Age, Experts Say
What makes the Meghalayan Age special is that its birth coincides with a cultural event sparked by a global climatic event. But the Holocene itself can be subdivided, according to the International Commission on Stratigraphy (ICS).
Euro U19 : la France de Kamara se relance
Après une défaite contre l'Ukraine pour son premier match, l'équipe de France U19 s'est révoltée en écrasant la Turquie (5-0). En cas de victoire, ils seront assurés de prendre l'une des 2 places qualificatives pour les demi-finales.
Confirmed: Milan's European Ban Overturned
However, the club announced their decision to appeal and their ban has now been overturned by the Court of Arbitration for Sport. UEFA had questioned a business plan and figures Milan had presented to them amid uncertainty over the club's ownership.
De Laurentiis revient sur les rumeurs Cavani et Di María
Toujours selon le média transalpin, la bonne entente entre Benzema et son président pourrait faciliter un départ. Il y a un accord entre (le nouvel entraîneur Carlo) Ancelotti et moi pour acheter uniquement de jeunes joueurs.
Lacklustre Kenya Sevens knocked out of World Cup
World Cup holders New Zealand lurk in the other half of the draw, having already shown why they are favourites and No.1 seeds. Australia will play France in Sunday (AEST) morning's final four after their last-gasp try was enough to beat Canada 24-19.
Manchester City Keen On Miralem Pjanic and Mateo Kovacic
He is training like a young guy, 18 years old. "We tried but players have to go where they go". "But he is with us". Sane was left off the final 23 man squad for Germany's World Cup campaign - which ended after the group stages.