How old is the light from Antares?

How old is the light from Antares?

around 12 million years old
Antares is the brightest, most massive, and most evolved stellar member of the nearest OB stellar association, the Scorpius-Centaurus Association. Antares is about 550 light-years away from the Sun. It is around 12 million years old and it is already nearing the end of its lifespan.

How much longer will Antares live?

With an estimated age of 12 million years, Antares is nearing the end of its life and is expected to go out as a supernova within the next million years. The companion, Antares B, is a bluish-white fifth magnitude star that lies only about 3 arcseconds away from Antares A and is hidden in the light of the larger star.

Is Antares moving toward or away from Earth?

Antares is a Binary or Multiple star system. Using the most recent figures given by the 2007 Hipparcos data, the star is 553.76 light years away from Earth. The star’s name is a traditional/name which has been officially recognised by the I.A.U.

What if Antares was our sun?

Antares, the angry red eye of the constellation Taurus the bull, is a red supergiant star near the end of its life. If placed inside our own solar system, the photosphere of Antares would engulf the planets Mercury, Venus, Earth, and even Mars, stretching to roughly the orbit of the asteroid belt.

Is Antares visible from Earth?

Antares and Antares B As the image below shows, Antares B is hard to see next to its much brighter companion. The companion is a blue-white main sequence star with a visual magnitude of just 5.5. This near the edge of what you can see with the unaided eye.

Is Antares bigger than Arcturus?

Antares has a diameter of ≈ 700 times that of the Sun, or about 1 billion kilometers. Betelgeuse has a diameter ≈ 1300 times that of the Sun. Arcturus is 20 times bigger than the sun.

How many Earths fit in Antares?

It’s so big that you could fit more than a million Earths inside it. Yet when it’s compared to some of the biggest stars of all, the Sun is a mere bit of cosmic flotsam — like a BB compared to a bowling ball.

Will Antares go supernova?

Antares, like the similarly sized red supergiant Betelgeuse in the constellation Orion, will almost certainly explode as a supernova, possibly in the next ten thousand years. For a few months, the Antares supernova could be as bright as the full moon and be visible in daytime.

Is Antares hotter than the sun?

Antares as a red supergiant Its surface temperature is about 6,100 degrees F (3,400 degrees C). That’s in contrast to our sun’s surface temperature of about 10,000 degrees F (5,800 degrees C). So Antares is relatively cool, and its surface temperature is relatively low.

Is Antares the biggest star?

Antares, also called Alpha Scorpii, red, semiregular variable star, with apparent visual magnitude about 1.1, the brightest star in the zodiacal constellation Scorpius and one of the largest known stars, having several hundred times the diameter of the Sun and 10,000 times the Sun’s luminosity.

How far is the closest star from Earth?

The Nearest Stars to Earth (Infographic) The nearest stars to Earth are in the Alpha Centauri triple-star system, about 4.37 light-years away. One of these stars, Proxima Centauri , is slightly closer, at 4.24 light-years.

When will Antares die?

At only around 12 million years old Antares is already nearing the end of its lifespan and is expected to explode as a supernova in the next million years. Low mass stars such as our sun exist in their main sequence for several billion years.

How big is Antares?

Antares has a radius of about 680 to 800 times that of the Sun. This gives Antares a diameter between 947 to 1.114 billion kilometers in size.

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