What is Sirius in? What does it look like?

When the constellation Toto, the representative of the winter constellation, climbs to the highest peak of the sky, at the lower left of it, you can see a pile of bright stars, shining above the southeastern horizon, this pile of bright stars is the big dog that waits with the hunter when he is out hunting, and this big dog should be easy to find, because the brightest star in the sky, Sirius, is located in the constellation Canis Major. Sirius is the brightest star seen by the naked eye outside of the sun, and its original Latin name is Sirius, which comes from the Greek "Burner." Sirius is so bright, almost ten times brighter than the so-called first magnitude, and even in the famous summer triangle, for the brightest zero-magnitude weavers, the brightness is only a quarter of that of Sirius, so we can see how bright Sirius is, the reason why Sirius is so bright is not only because its diameter is twice that of the sun, resulting in 30 times the amount of light as the sun, but also because it is only light-years away from us, the sixth closest star to the sun, bright and close to Sirius has become the night sky in the dark, the light shines Big star too.

When we look at Sirius, the brightest star in the sky in the winter night sky, we will find that it emits a strong blue-white light, which indicates that its surface temperature is more than 10,000 degrees, astronomers analyze the light of Sirius to explore its physical condition, and believe that it was born about 500 million years ago, compared to our solar birth 4.6 billion years ago, Sirius can only be regarded as a "naïve garden". In 1844, the famous German astronomer at that time, Brussel, compared the orbit of Sirius between 1755 and 1843, and found that it was not the usual straight motion, but actually in the form of a "wavy curved line". In 1862, when the famous American telescope mirror maker, Clarke, was grinding the largest 18-inch (45 cm) refractor at that time, he observed Sirius to test its optical effect, and found a small spot of light next to Sirius.

According to the calculations of astronomers based on the displacement of Sirius, the mass of this companion star should be very large, but the brightness is so small that it seems to be a little wrong.

Sirius is in the northwest. Lord aggression. Su Shi wrote that there was such a period in Jiangchengzi Mizhou hunting, the wine was still open, and the temples were slightly frosty, so what's the matter! In the clouds, when will Feng Tang be sent? Will hold the bow like a full moon, look northwest, and shoot the wolf.

Trouble, thanks!

Sirius is only easy to see in winter or early spring, the easiest way to find it is to look at the southern sky at about 22 o'clock in the evening around the Spring Festival, the brightest one, the altitude angle is about 40 degrees, which star is the brightest, is Sirius, of course, the premise is to exclude the planets. Planets generally orbit the same as the Moon in the night sky, with Sirius lower.

Sirius, also known as Canis Major, is the brightest star of the day except the Sun, but is dimmer than Venus and Jupiter, and brighter than Mars most of the time. Sirius generally refers to Sirius A, and its main system consists of a blue-white blue dwarf and a blue white dwarf, with a center of mass about at a distance of about Earth.

Sirius is the brightest star of the day, with visual magnitude, and in the western constellation, it is a double star in the constellation Canis Major. Of course, the ancients of our country also paid attention to this bright star, and called this most striking star in the south of the "Que Qiu" and the most striking star in the well as the "Wolf Star". Therefore, for the tranquility of the territory, the ancients set up a curved bow to shoot the wolf in the southeast of the "Wolf Star" - "arc arrow", the bow and arrow composed of these 9 stars are very vivid, the arrow is on the string, the bow has been rounded, and the arrow points directly to the "Wolf Star" in the northwest direction.

Sirius appears in the southern sky in winter, located in the lower left of the constellation Orion, and is the brightest star in the winter night sky, a first-magnitude star in the constellation Canis Major. Looking southeast, the constellation Orion is shining with one of the brightest stars of the day, Sirius.

In Chinese astronomy, this star is called Sirius (the wolf of the sky), and of the 28 Chinese constellations, Sirius belongs to the Jing Nakshatra and is located in it. It is the only star in the Sirius.

Sirius is looking for it in a large group of bright stars next to the constellation Orion. You can find Orion first and then follow the three stars on Orion's belt and then go southeast, if you see a dazzling blue star and a particularly shining star, it is Sirius.

In addition, Sirius can also be seen in spring, but in spring it is necessary to use another method, but it is not so intuitive, and it is generally more intuitive and easy to find in the winter triangle.

If you look at Sirius, you will feel that Sirius is relatively bright. Sirius is also the brightest star in the sky, Sirius is located in the constellation Canis Major and is the brightest constellation of the stars, several times brighter than Vega, because Sirius is relatively close to the Sun, showing a very dazzling flash when observing in the night sky, and it is easier to find Sirius at night.

In addition, the Greeks discovered the sparkle of Sirius and described Sirius to explain the sparkle of one of the constellations in the stellar group.

Sirius shines around Orion, like a hound that is always the guardian of Orion, so Sirius is also called Canis Major and is easy to find at night. There are also different theories about the legend of Sirius, which in ancient China considered to be a symbol of bad luck, or a symbol of war or disaster, and Sirius was a symbol of evil in front of ancient stargazing masters.

In the eyes of ancient Egypt, the appearance of Sirius would follow the flood**, so ancient Egypt believed that Sirius was the star of the flood.

Sirius is a first-magnitude star in the constellation Canis Major, named Canis Major according to the Bayle star nomenclature. In China, he is a Sirius official who belongs to the 28 constellations. Sirius, South River III and Betelgeuse, so, let's see which side of Sirius is?

may be interested in the legend of Sirius.

Sirius, Sirius, is a first-class source star in the constellation Canis Major, named Canis Major according to the Bayle star nomenclature. In China, he is a Sirius official who belongs to the 28 constellations. Sirius, South River, and Betelgeuse, for those who live in the Northern Hemisphere, make up the three vertices of the Great Winter Triangle.

Finding a way Sirius is only easy to see in winter or early spring. There are several ways to find Sirius:

The constellation Orion is very easy to find, and the three stars in a tight line between the two bright stars should also be visible. Looking southeast along the three stars, a very conspicuous star is Sirius.

Patrolling southeast along the three stars of the hunter's belt, you can see an exceptionally bright star shining with a blue-white light, which is the brightest star in the night sky, Sirius, with an apparent magnitude of negative magnitude. Sirius, or Alpha Canis Major, forms the outline of a dog with some of the other brighter stars in Canis Major, and Sirius is on the canine's mouth.

The winter triangle is not so intuitive, and there is a brighter Nanhe 3 due east of Betelgeuse, a bright star on the left side of Orion, and the line between Nanhe 3 and Betelgeuse is vertically bisected to the south, and he will be found. Betelgeuse.

4. Sirius and the South River make up the famous "Great Winter Triangle".

The above two methods are commonly used, in fact, the easiest way to find Sirius is around 22 o'clock in the evening before and after the Spring Festival, looking at the southern sky, the brightest one in the fissure, the altitude angle is about 40 degrees, which star is the brightest, is Sirius, of course, the premise is to exclude the planets. The orbit of the planets in the night sky is generally about the same as that of the moon, and Sirius is lower.

In China, Sirius' orbit is always in the southern part of the sky. The further north it goes, the lower the altitude angle of Sirius.

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