How about Carina in Constellation _ Carina Alpha Star

Constellation knowledge _ tail related knowledge?

As for constellations, besides the twelve constellations we are familiar with, there are many unfamiliar constellations in the starry sky, such as the "tailstock" which is rarely heard. Next, the constellation knowledge will explain the relevant knowledge of cauda for everyone.

The knowledge about tail is a part of ancient southern constellation. 1877, the ancient southern constellation was divided into four independent constellations, which was a large constellation with medium brightness. The Latin name of coccyx is Puppis, the right ascension is from 6: 02 to 8: 26, and the right ascension is-1 1 to 5 1. The tail region is located on the east side of the connection between Sirius and carina, and most of it is located in the Milky Way. Among them, 18 1 star is brighter than 6, including second-class star 1 star, third-class star 6, and fourth-class star 14. Every March 13, at 8 pm, the stern will go to Zhongtian. Observers can see the complete comet tail south of 39 north latitude, but they can't see this constellation at all north of 79 north latitude.

Tail is one of the 88 constellations in the whole day, the Southern Constellation. On the celestial sphere not far from Sirius, it once belonged to the southern constellation in ancient times. Sagittarius is a very large constellation, including base, sail, stern and compass. Later, it was divided into four by astronomer Lacaille, so there were no stars such as α, β, γ, δ and ε. The brightest star is Naos with a magnitude of 2.2, which comes from the Arabic word for "boat". It is a hot and bright blue-and-white Supergiant star, which is 0/500 light-years away from the Earth and is the hottest star known. The second bright star is azmi Dierske, 3.34, etc. Located 650 light years away, his irrelevant partner (5.3, orange, etc. ) is located at 280 light years, but the period of a distant binary star is five months, which can be distinguished by a telescope. This constellation also has an eclipse binary star-tail five, which varies between 4.4 and 4.9.

Although the stars in this constellation are not bright, there are five bright open clusters, namely M46, M47, M93, NGC2447 and NGC245 1. Among the four open clusters in this constellation, M46 is the farthest from the Earth, which is 5,000 light years, which is about the size of a full moon. There is an open cluster, M47, less than 3 degrees east of M46, but this cluster is only 1500 light years away from the Earth, and it is very dark, and M93 is even darker than it. Next is NGC2274, which is 4200 light years away and contains many stars. It looks like a globular cluster with binoculars, and only a small telescope can separate a single star. The brightest star cluster in the constellation is NGC245 1, and its brightest star is Supergiant star of magnitude 3.6-Sagittarius C (Sagittarius III).

The four constellations, cauda, carina and compass, were originally four parts of the same constellation-Sagittarius australis. In ancient Greek mythology, they were collectively called the Southern Constellation, which is the largest constellation in the whole day. This constellation has more than 800 stars visible to the naked eye, which is almost one-eighth of the number of stars visible all day! In ancient Greek mythology, Argo in golden fleece was carried with the great hero Jason and others. She braved the wind and waves in the sea, but even in heaven, she was still magnificent! Unfortunately, the good times did not last long. /kloc-in the 0 th and 8 th centuries, astronomers thought that the South Pier was too big, so they divided it into four parts, namely the stern, the base, the sail and the compass. Up to now, the word Sagittarius is rarely mentioned, but the achievements of Argo and his heroes are deeply imprinted in people's hearts.

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