A brief introduction to cetus.

Abbreviation: Cet

Zodiac killer: No.

Location: It is a big constellation across the equator of the celestial sphere, located in the south of Pisces and Aries, and in the north of Bojiang.

Size ranking: 4

Area: 123 1 square.

Width: about 50 degrees

Depth: about 30 degrees

Months reaching the highest point at 22: 00: 10 to 12.

You can observe the latitude range of the whole constellation: 65 N to 79 s.

The brightness range of the beta star (the brightest star) and the second O star (the second increase) in the constellation Ceylon is 2 ~ 10, and the equal period is 1 1 month. What the naked eye or binoculars see is a red giant star, about the same height as the sun. Periodic expansion and contraction will obviously change the brightness. It is the first confirmed variable in 1596 and the prototype of long-period variable. This kind of variable star is called whale O variable star, which is the largest group of variable stars. The naked eye distance of T star in Cetacea (the V-class solar star in Tiancang) 3.5 is 1 1.9 light years, which is one of the 20 closest stars to the earth, and its temperature and brightness are similar to those of the sun. The M77 spiral galaxy telescope is facing the earth and looks like a small circular spot. It is the brightest star in the West Buddha galaxy, and its center is extremely bright.

Cetacea is the fourth largest constellation among the 88 constellations in the whole day, second only to Ophiuchus, Virgo and Ursa major. Andromeda α and Pegasus γ in the four corners of autumn are twice as many as those in the south, and there is a 2m star here, which is the brightest β star in Cetacea. Because there is no bright star in the nearby sky, this star is very eye-catching and easy to find. Although the constellation Ceylon is very big, it is just such a bright star. The image of this monster is really not obvious! Cepheus ο (Greek letter ο is pronounced "Omicron") is a very important variable star. It can reach 2 in the brightest time, 10 in the darkest time and so on. -at this time, you have to see it through a telescope, so westerners call it a strange star.

Pisces is not the zodiac. As you can see from the right, it does not occupy any length on the ecliptic. But because the area of the sun is certain, the sun sometimes passes through Pisces. The current time is from 6 pm on March 27th to 6 am on March 28th. A small part of the sun is in Pisces, and most of the rest is in Pisces. Nevertheless, there are thirteen constellations.