What is the solar radius of Antares?

What is the solar radius of Antares?

The exact size of Antares is uncertain, but its estimated radius is between 680 and 800 solar radii. If it replaced the Sun in our solar system, it would extend between the orbits of Mars (297-358 R☉) and Jupiter (1,064–1,173 R☉).

How big is the Sun compared to Antares?

While Antares’ diameter is about 700 times larger than the sun in visible light, this map revealed that, as seen in radio light, the star’s atmosphere stretches even farther and is even more enormous.

How far is the star Antares from Earth?

554.5 light years
Antares/Distance to Earth

Is Antares hotter than the Sun?

Its estimated surface temperature is much cooler than our Sun, at around 3.000 degrees Celsius / 5.400 degrees Fahrenheit. Its exact mas is yet to be concluded, calculations put it between 12-18 times the mass of our Sun. Though, Antares is rapidly losing mass as a result of a strong wind.

What is the red star next to the moon?


Observation data Epoch J2000 Equinox J2000
Declination −26° 25′ 55.2094″
Apparent magnitude (V) 0.6 – 1.6 + 5.5
Evolutionary stage Red supergiant

What color stars last the longest?

red dwarfs
The stars with the longest lifetimes are red dwarfs; some may be nearly as old as the universe itself.

Where is the biggest star located?

The largest of all The star lies near the center of the Milky Way, roughly 9,500 light-years away. Located in the constellation Scutum, UY Scuti is a hypergiant, the classification that comes after supergiant, which itself comes after giant.

Which star is hotter Mira or the sun?

Mira is hotter and bluer but intrinsically fainter than the Sun.

Who is the biggest Sun?

For example, below is a list of some of the largest stars in our galaxy and how they compare to our Sun:

  • Mu Cephi – about 1500 times the size of our sun.
  • Betelgeuse – about 900 times the size of our sun.
  • Antares – about 530 times the size of our sun.
  • Deneb – about 145 times the size of our sun.

How big is Antares in relation to the Sun?

Also Known As: Antares A, Alpha Scorpii. Distance From Earth: 550 light years. Constellation: Scorpius. Star Type: M Class Supergiant. Mass: 18 x Sun. Luminosity: 65,000 x Sun. Diameter: 735 million miles (1.2 billion km) – 850 x Sun. Temperature: Approx 3,000C (5,400F) Age: 12 million years old . Rotation Period: Unknown

How did the Antares star get its name?

Low mass stars such as our sun exist in their main sequence for several billion years. Due to is reddish color Ancient Greeks associated the star with the planet Mars, the name Antares is Greek for “rival of Mars”. The sun is a mere dot in this image when compared in size to the giant Antares star.

How big of a telescope do I need to see Antares?

Antares B has an apparent magnitude of 5.5 but makes a challenging target for small telescopes because of its proximity to the considerably brighter supergiant star. It requires a 6-inch or larger telescope.

How big is the distance between Antares and the Moon?

The pair have a projected separation of about 529 astronomical units (AU) (≈ 80 billion km) at the estimated distance of Antares, giving a minimum value for the distance between them.