What constellation is a square _ What constellation is a square?

Which two constellations do the "autumn quadrangle" refer to?

The starry sky in autumn

Pegasus Poerxiusi

Dolphin Capricorn

Fairy and fairy throne

Hou Xian left Yu Nan left.

Whale water bottle

Pisces

"Flying horse in the sky, the Milky Way hanging obliquely" is a symbol of the starry sky in autumn. Patrol the autumn starry sky, you can start from the "autumn quadrangle" (also known as "flying horse-fairy box") in the direction of the head. This quadrilateral is like a square. When it is overhead, its four sides just represent one direction. The quadrangle in autumn is made up of three bright stars in Pegasus (α, β, γ) and one bright star in Andromeda (α), which is very eye-catching.

Extend the east side line of the quadrilateral to the northern sky (that is, from the gamma star of Pegasus to the alpha star of Andromeda), find the Polaris through Cassiopeia, and extend southward along this baseline to find the bright star (β) of Cetacea. This long north-south line is almost at Right ascension. It is convenient to remember and estimate the position of the stars. Extend the western line of the quadrangle to the southern sky (that is, from the beta star of Pegasus to the alpha star), and at the low altitude in the south, you can find the famous bright star in the autumn sky-Beijiao (the alpha star of Pisces), and extend northward along this baseline to find Cepheus.

From the northeast corner of the quadrangle in autumn to the northeast along Andromeda, Perseus composed of three rows of stars can be found. To the southeast of the quadrangle in autumn are Pisces and the Great Whale. Wang Xian, Hou Xian, Fairy, Perseus, Pegasus and Whale form a brilliant royal constellation, which is the main constellation in the autumn sky. To the southwest of the autumn quadrangle are Aquarius and Capricorn.

There are few bright stars in the autumn sky, but there are many deep-space objects like Andromeda Extragalactic Galaxy (M3 1).

Starry sky in winter

Canis major hunter constellation

Dog sign and rabbit sign.

Taurus constellation Bojiang constellation

Aries yufu constellation

Double base

It's freezing in winter, so it's not a pleasant thing to go out and watch the stars at night. However, in all seasons, the starry sky in winter is the most magnificent. Winter is the brightest season of stars all year round, and many constellations are very easy to identify. Of course, the most striking thing is Orion hanging high in the southern sky: the three stars (Orion δ, ε, ζ) sandwiched between the red bright star Betelgeuse (Orion α) and the white bright star Betelgeuse (Orion β) are quite attractive. Looking south and east along Samsung, you can find Sirius (Alpha Canis), the brightest star in the whole day. Just to the east of Betelgeuse, there is another bright star, Nanhesan (Alpha Canis). Betelgeuse, Sirius and the constellation Nanhe form the famous "Winter Triangle", through which the dim Milky Way passes, which is the darkest part of the whole Milky Way.

Looking northwest along the three stars of Orion, we can find another bright red star (Alpha Star of Taurus), and several small stars near it belong to the famous "Bi Cluster". If you continue to look north, you can see the Pleiades Cluster consisting of 6-7 small stars, all of which belong to Taurus. The northeast of Taurus is the five-pointed star Auriga, and the main star of Auriga is Capella, which is also a very bright star. Looking northeast along the connecting line between Betelgeuse and Betelgeuse, we can find two bright stars, namely Kitagawa III (Gemini Beta) and Kitagawa II (Gemini Alpha). Connecting Capella, Beihe III, Nanhe III, Sirius, Betelgeuse and Sotheby's V can form a spectacular "winter hexagon".