Constellation _ 202 1 starry sky in 2020

How many constellations are there in the sky?

The zodiac signs are Aries (2 1/3- 19/4), Taurus (20/4-20/5), Gemini (2 1/5-2 1/6) and Cancer (22/6). Scorpio (23/10-211) and Sagittarius (22/11-21/. However, the actual corresponding constellations are not the same size, and because of the precession of the earth axis, the zodiac is not consistent with the situation in the sky. And the name itself is a little different.

The whole day is divided into 88 constellations. Among them, there are 13 constellations that the ecliptic passes through. Ophiuchus is the only constellation that is crossed by the zodiac but does not belong to the zodiac. Due to the precession of the earth's axis, the vernal equinox moved from Aries to Pisces, so the time when the sun entered each constellation changed greatly. Details are as follows:

Aries: April 19- may 13

Taurus: May 65438+June 20th, 2004.

Gemini June 2 1- July 19

Cancer July 20-August 19

Leo August 20-September 15

Virgo September 16-10 October 30th

Libra 65438+1October 31-kloc-0/65438+1October 22.

Scorpio165438+1October 23rd-165438+1October 29th.

Ophiuchus165438+1October 30th-65438+February 65438+July.

Sagittarius 65438+February 18-65438+ 10/8

Capricorn 65438+ 10 month 19-2 month 15

Aquarius February 16- March 1 1

Pisces March 12- April 18

As can be seen from the above dates, the length of time the sun stays in each constellation is really different.