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It is a red giant, 22 million miles in diameter or 35.7 million Kilometers. which is 25.7 times that of the sun and 2/3 the radius of of Mercury's orbit! The difference in size between our Sun and Arcturus would be, if the sun were the size of a BB, Arcturus would be larger than a soft ball about 4.5" or 113mm. Arcturus puts out more than 110 times as much light as the sun and is 36 light years away which is rather close, making it the third brightest star in the sky.
As large as it is there are stars far larger! The largest known star is Pistol. If Arcturus were a BB then Pistol would be a soccer ball and the sun would be a grain of sand! Pistol puts out an unbelievable 10 million times the light of the sun! It is very dim to us because it is 25,000 light years away and is in a cloud of nebula dust. Our sun would not be visible at all at that distance.
What else can I help you with?
What is regalus blacks middle name?
Regulus Arcturus Black.Regulus Arcturus Black.Regulus Arcturus Black.Regulus Arcturus Black.
What is the size and apparent brightness of arcturus and vega?
Arcturus is orange in color, and has a mass of 2.188E30 kg. Vega has an apparent magnitude of 0.03, a white color, and the size is unknown. Comments. That answer does not fully answer the question. For example there's nothing about Polaris.
What is the color size and apparent brightness of Vega Polaris and Arcturus?
Arcturus is orange in color, and has a mass of 2.188E30 kg. Vega has an apparent magnitude of 0.03, a white color, and the size is unknown. Comments. That answer does not fully answer the question. For example there's nothing about Polaris.
Is Arcturus bigger than the sun?
Arcturus
What class is Arcturus star in?
Arcturus is in class A.
How many of our suns fit into arcturus?
Arcturus, a red giant star, is approximately 25 times larger in diameter than our Sun. In terms of volume, around 1,000 Suns could fit inside Arcturus. This significant size difference highlights the vast scale of the universe and the diversity of star types.
Why vega brighter than arthuros?
Vega appears brighter than Arcturus in the night sky because it is closer to Earth, being only about 25 light-years away compared to Arcturus which is around 37 light-years away. Additionally, Vega is a hotter and more luminous star compared to Arcturus, contributing to its perceived brightness.
What is arcturus in Hawaii?
Arcturus is the Zenith Star of the Hawaiian Islands
Is Arcturus a nebula?
No, Arcturus is a red giant star, not a nebula.
When was A Voyage to Arcturus created?
A Voyage to Arcturus was created in 1920.
What is Arcturus?
Arcturus is a red giant and the brightest star in the constellation Boötes.It has a spectral type of K1 and will have a colour of orange to orange yellow.It is approximately 37 light years from us.See related link for a size comparison to our Sun.
What is the size in diameter of a arcturus?
Arcturus, a red giant star in the constellation Boötes, has a diameter approximately 25 times greater than that of the Sun. This translates to about 174 million kilometers (or roughly 108 million miles). Its large size makes it one of the most luminous stars visible from Earth.
