What's the little knowledge about arcturus? What constellation does arcturus belong to?

In the universe, there are a large number of space-time creatures, which contain a lot of abilities. Generally speaking, there are well-known planets and planets, and there are also various names of stars that everyone can't say, covering star orbits and clusters, but most stars belong to a constellation. Before you know it, you generally need to know the constellation to which they belong.

1. What constellation is arcturus in?

Arcturus belongs to Capricorn and is also the main star of Capricorn. If you can see Capricorn in the night sky, the first thing you see is probably arcturus. Because arcturus is the brightest star in Capricorn and the first bright planet in the northern night sky, its chromaticity is 265,438+05 times that of the sun, but it is much darker than the bright stars Cygnus ky and Sagittarius kw. The effective surface temperature of arcturus is 4 100℃, which is slightly lower than the solar surface temperature of 5500℃. On the night in the middle and late May, you choose the Big Dipper, then take the opportunity to widen it along the curve of bucket handle and draw a big diagonal line, and you will find arcturus.

2. Is arcturus a red superstar?

No, it belongs to a red Supergiant star. Its radius is always changing, not static. So far, according to the comparison of similar planets, the average diameter of arcturus is 2 1 times the diameter of the sun. What does this mean? In other words, a arcturus can hold 92,665,438+0 suns. Although arcturus is very big, it is smaller than the largest star in the universe-SHIELD UY. But the quality of arcturus's products is 1.04- 1. 16 times that of the sun, which is relative to the sun. So is arcturus a red giant? Absolutely not. It is a relatively red Supergiant star, which belongs to the massive star in the main sequence, so it can be seen casually in the night sky.

How far is arcturus from the earth?

It is about 3.672 billion light years away from the earth, or it is far away from the earth. The fundamental reason why it can be seen in the night sky is that its star is too bright, but because of the distance, such a bright planet will only be found at night, so it is far from the earth. How far is arcturus from the earth? It is about 367 1 100 million light years! Many people probably don't feel good about this distance, but you should know that the distance between the sun and the earth is actually 0.0000158 billion light years, so it is not difficult to imagine how far arcturus is from the earth. At this stage, the earth has not evolved a high-tech that can carry passengers.