Astronomers discover quasar 500 trillion times brighter than the sun

Astronomers have discovered what is believed to be the brightest object in the universe, which shines 500 trillion times brighter than our Sun and is more than 17 billion times as large.

It is the luminous core of an early galaxy and is powered by a supermassive black hole that swallows the equivalent of a sun each day.

The quasar, as it is called, was found by an Australian-led team and reported Monday in the journal Nature Astronomy.

The researchers said a super-bright, highly energetic disk of gas and dust swirling around the quasar’s black hole acts like a cosmic hurricane, actively adding material from gobbled-up stars, through a process called accretion.

Using a model, scientists determined the quasar has accreted, or swallowed, about 370 solar masses per year — about one Sun per day.

That comes close to what scientists believe is the upper limit of what is possible, but they say further research and observations are needed.

“This quasar is the most violent place that we know in the universe,” lead author Christian Wolf of Australian National University said.

The European Southern Observatory spotted the object, J0529-4351, during a 1980 sky survey, but it was mistakenly identified as a star at the time.

It was not named a quasar — the extremely active and luminous core of a galaxy — until last year. Observations by telescopes in Australia and Chile’s Atacama Desert clinched it.

“The exciting thing about this quasar is that it was hiding in plain sight and was misclassified as a star previously,” Yale University’s Priyamvada Natarajan, who was not involved in the study, said.

The quasar is 12 billion light-years away and has been around since the early days of the universe. A light-year is 5.8 trillion miles.

Amazing images from the James Webb Space Telescope — in pictures

Uranus is surrounded by 13 rings and 27 small moons as it rotates at a nearly 90-degree angle from the plane of its orbit. Photo: Nasa

Complex organic molecules similar to smoke or smog in a galaxy more than 12 billion light-years from Earth. Photo: Nasa

A delicate image of dust structures and bright star clusters taken by the James Webb Space Telescope. Photo: Nasa

Saturn has seven rings with several gaps and divisions between them, as well as 53 known moons. Photo: Nasa

Star cluster NGC 346, spiral galaxies NGC 1672 and Messier 74, and the Pillars of Creation, towering tendrils of cosmic dust and gas at the heart of the Eagle Nebula. Photo: Nasa

An infrared image of Neptune, the only planet in our solar system not visible to the naked eye. Photo: Nasa

Every eight years, the two stars in this image are brought together by their orbits – creating colliding streams of gas that, under the right conditions, form a new ring of dust. Photo: Nasa

A part of the Orion Nebula known as the Orion Bar. Photo: Nasa

A crowded field of galaxies, along with stars crowned with the James Webb Space Telescope’s signature six-pointed diffraction spikes. Photo: Nasa

The NGC 3256 spiral galaxy was formed after a collision of two massive galaxies about 500 million years ago. Photo: Nasa

The Wolf-Rayet 124 star, featured in an image combining near-infrared and mid-infrared wavelengths of light. Photo: Nasa

An hourglass-shaped cloud of dust and gas is illuminated by light from a protostar. Photo: Nasa

Two views of the Southern Ring Nebula, which show the planetary nebula as a misshapen oval. Photo: Nasa

A composite image of the Cartwheel Galaxy captured by the James Webb Space Telescope in August 2022. AFP

A cluster of stars in the Small Magellanic Cloud, near the Milky Way. Photo: JWST

A colour composite image of the Messier 74 galaxy. Photo: JWST

The gravity of galaxy cluster MACS0647 bends and magnifies light from the more distant MACS0647-JD. Photo: Nasa

The ‘Pillars of Creation’ — clouds of hydrogen gas and dust 6,500 light years from Earth — captured by the Hubble Space Telescope, left, and James Webb Space Telescope. AP

Dust rings resembling a fingerprint created by a rare type of star and its companion. PA

Images of the asteroid Dimorphos hours after Nasa crashed a spacecraft into it in September 2022. EPA

Neptune and seven of its 14 known moons. AFP

Thousands of young stars in a stellar nursery called the Tarantula Nebula. Photo: Nasa

A image of an exoplanet — a gas giant with no rocky surface. Photo: Nasa, ESA and CSA

Glass-z13, the oldest galaxy to be detected, was formed about 300 million years after the Big Bang. Photo: JWST

Jupiter and its moon Europa. Photo: Nasa

Jupiter and its moons Europa, Thebe and Metis. Photo: Nasa

Another image of Jupiter and some of its 79 moons. Photo: Nasa

An image of galaxy cluster Smacs 0723 taken by the James Webb telescope. Photo: Nasa

Stephan’s Quintet is an area in space that has five galaxies. Photo: JWST

The ‘Cosmic Cliffs’ of the Carina Nebula. Photo: JWST

An anniversary image shows the birth of a star in the Rho Ophiuchi cloud complex, the closest star-forming region to Earth. Photo: Nasa