Vlc mac cnet. A Star Is Born is a 2018 American musical romantic drama film produced and directed by Bradley Cooper (in his directorial debut) and written by Cooper, Eric Roth and Will Fetters. It stars Cooper, Lady Gaga, Dave Chappelle, Andrew Dice Clay, and Sam Elliott, and follows a hard-drinking musician (Cooper) who discovers and falls in love with a young singer (Gaga). Stars go here- Best of Sky Movies Family. If talking dogs, giants, wizards and princesses are your thing, then you’ll be sorted this April with these Sky Movies Family faves including: Harry Potter and The Philosopher's Stone, Cinderella: After Ever After, Jack and the Beanstalk, Luis and the Aliens, Sgt. Stubby, The Swan Princess: A Royal.
Star Is Born Song
This is a Digitized Sky Survey image of the oldest star with a well-determined age in our galaxy. The aging star, cataloged as HD 140283, lies 190.1 light-years away. The Anglo-Australian Observatory (AAO) UK Schmidt telescope photographed the star in blue light. Credit: Digitized Sky Survey (DSS), STScI/AURA, Palomar/Caltech, and UKSTU/AAO
A team of astronomers using NASA's Hubble Space Telescope has taken an important step closer to finding the birth certificate of a star that’s been around for a very long time.
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'We have found that this is the oldest known star with a well-determined age,' said Howard Bond of Pennsylvania State University in University Park, Pa., and the Space Telescope Science Institute in Baltimore, Md.
The star could be as old as 14.5 billion years (plus or minus 0.8 billion years), which at first glance would make it older than the universe's calculated age of about 13.8 billion years, an obvious dilemma.
But earlier estimates from observations dating back to 2000 placed the star as old as 16 billion years. And this age range presented a potential dilemma for cosmologists. 'Maybe the cosmology is wrong, stellar physics is wrong, or the star's distance is wrong,' Bond said. 'So we set out to refine the distance.'
The new Hubble age estimates reduce the range of measurement uncertainty, so that the star's age overlaps with the universe's age — as independently determined by the rate of expansion of space, an analysis of the microwave background from the big bang, and measurements of radioactive decay.
This 'Methuselah star,' cataloged as HD 140283, has been known about for more than a century because of its fast motion across the sky. The high rate of motion is evidence that the star is simply a visitor to our stellar neighborhood. Its orbit carries it down through the plane of our galaxy from the ancient halo of stars that encircle the Milky Way, and will eventually slingshot back to the galactic halo.
This conclusion was bolstered by the 1950s astronomers who were able to measure a deficiency of heavier elements in the star as compared to other stars in our galactic neighborhood. The halo stars are among the first inhabitants of our galaxy and collectively represent an older population from the stars, like our sun, that formed later in the disk. This means that the star formed at a very early time before the universe was largely 'polluted' with heavier elements forged inside stars through nucleosynthesis. (The Methuselah star has an anemic 1/250th as much of the heavy element content of our sun and other stars in our solar neighborhood.)
The star, which is at the very first stages of expanding into a red giant, can be seen with binoculars as a 7th-magnitude object in the constellation Libra.
Hubble's observational prowess was used to refine the distance to the star, which comes out to be 190.1 light-years. Bond and his team performed this measurement by using trigonometric parallax, where an apparent shift in the position of a star is caused by a change in the observer's position. The results are published in the February 13 issue of the Astrophysical Journal Letters.
The parallax of nearby stars can be measured by observing them from opposite points in Earth's orbit around the sun. The star's true distance from Earth can then be precisely calculated through straightforward triangulation.
Once the true distance is known, an exact value for the star's intrinsic brightness can be calculated. Knowing a star's intrinsic brightness is a fundamental prerequisite to estimating its age.
Before the Hubble observation, the European Space Agency's Hipparcos satellite made a precise measurement of the star's parallax, but with an age measurement uncertainty of 2 billion years. One of Hubble's three Fine Guidance Sensors measured the position of the Methuselah star. It turns out that the star's parallax came out to be virtually identical to the Hipparcos measurements. But Hubble's precision is five times better that than of Hipparcos. Bond's team managed to shrink the uncertainty so that the age estimate was five times more precise.
With a better handle on the star's brightness Bond's team refined the star's age by applying contemporary theories about the star's burn rate, chemical abundances, and internal structure. New ideas are that leftover helium diffuses deeper into the core and so the star has less hydrogen to burn via nuclear fusion. This means it uses fuel faster and that correspondingly lowers the age.
Also, the star has a higher than predicted oxygen-to-iron ratio, and this too lowers the age. Bond thinks that further oxygen measurement could reduce the star's age even more, because the star would have formed at a slightly later time when the universe was richer in oxygen abundance. Lowering the upper age limit would make the star unequivocally younger than the universe.
'Put all of those ingredients together and you get an age of 14.5 billion years, with a residual uncertainty that makes the star's age compatible with the age of the universe,' said Bond. 'This is the best star in the sky to do precision age calculations by virtue of its closeness and brightness.'
This Methuselah star has seen many changes over its long life. It was likely born in a primeval dwarf galaxy. The dwarf galaxy eventually was gravitationally shredded and sucked in by the emerging Milky Way over 12 billion years ago.
The star retains its elongated orbit from that cannibalism event. Therefore, it's just passing through the solar neighborhood at a rocket-like speed of 800,000 miles per hour. It takes just 1,500 years to traverse a piece of sky with the angular width of the full Moon. The star's proper motion angular rate is so fast (0.13 milliarcseconds an hour) that Hubble could actually photograph its movement in literally a few hours.
The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. NASA’s Goddard Space Flight Center in Greenbelt, Md., manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Md., conducts Hubble science operations. STScI is operated by the Association of Universities for Research in Astronomy, Inc., in Washington.
For images, illustrations, and more information about HD 140283, visit:
http://hubblesite.org/news/2013/08Space Telescope Science Institute, Baltimore, Md.
Find out whether A Star Is Born is available for streaming via Netflix UK, Prime Video UK, Now TV, Sky GO or any other British streaming service.A Star Is Born
A musician helps a young singer find fame, even as age and alcoholism send his own career into a downward spiral.
All available streaming options in the UK:A Star Is Born starring Andrew Dice Clay, Bradley Cooper, Lady Gaga & Sam Elliott is a Drama & Romancefilm directed by Bradley Cooper. Its release date is Wednesday October 3, 2018
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Movie A Star Is Born
|Cast||Andrew Dice Clay, Bradley Cooper, Lady Gaga & Sam Elliott|
|Genre||Drama & Romance|
|Country of origin||United States of America|
|Theme||Addiction, Alcoholism, Concert, Country Music, Pop Star, Self-destruction, Talent & Waitress|
|Script||Bradley Cooper (screenplay by), Eric Roth (screenplay by), Frank Pierson (based on the 1976 screenplay by), Joan Didion (based on the 1976 screenplay by), John Gregory Dunne (based on the 1976 screenplay by), Moss Hart (based on the 1954 screenplay by), Robert Carson (based on a story by), Will Fetters (screenplay by) & William A. Wellman (based on a story by)|
|Box Office Revenue||$432,466,514|
|Homepage||A Star Is Born Homepage|