Venus (infographic) Photo by Peng Jianhui
Guangzhou, October 27 (Guo Jun, Li Jianji) According to the Guangzhou Wuyang Planetarium, on October 30 this year, there will be a large distance between Venus (Chang Gung Star) to the east, ushering in the ideal time for observing Venus throughout the year, and the observation of Venus in the southern hemisphere is better than that in the northern hemisphere.
The East Distance means that Venus is located in the east of the Sun, with the largest angle distance from the Sun, and the best time to observe. As long as the sky is clear, from now until mid-December this year, all parts of China can see the brilliant and enchanting light of Venus at the low southwest sky under nightfall. The best time to observe around is 15 to 75 minutes after sunset. On October 30, the sunset time in Guangzhou is 17:50, that is, the best time to observe Venus in Guangzhou is from 18:05 to 19:05.
Schematic diagram of the orbit of Venus and the relative position of the Earth Li Xuyan drawn
Among the eight planets in the solar system, Venus is the closest to the Earth, and its apparent brightness is the brightest object besides the sun and the moon, and even during the day, Venus can be seen competing with the sun. Venus has a rotation period of about 225 days, and the conjunction period between Venus and Earth is 584 days (the interval between the two great distances between Venus and The East).
On October 30, Venus is at a great distance to the east, with a angular distance of 47 degrees from the Sun, and the Sun, Venus and earth form a right triangle with a right angle at Venus; Venus's apparent brightness reaches a magnitude of minus 4.7, and venus is proud of the stars in the form of Chang Gung star under nightfall; on December 4, Venus (Chang Gung Star) is the brightest of the year, with a magnitude of minus 4.9, which can be seen even by the naked eye during the day; on January 9, 2022, Venus meets the sun, that is, the Earth, Venus and the Sun are arranged in an approximate straight line, and Venus is not visible; February 13, Venus (Venus) is the brightest; on March 20, Venus is at the western distance; on October 23, Venus is in a nearly straight line, with the Earth, Sun, and Venus arranged in an approximate line, and Venus is not visible; on June 4, 2023, Venus is at a great distance (the time of the two eastern distances of Venus is 584 days).
On September 19 this year, Venus had an apparent diameter of 17 arcseconds and a phase of 0.67, which means that the public sees 67% of the viewing area of Venus illuminated by the sun in astronomical telescopes (see photograph of Venus). On October 30, Venus was at a great distance to the east, with an apparent diameter of 25 arcseconds and a phase of 0.49 (in telescopes, Venus can be seen as "half a bright moon"). On December 4, Venus was the brightest, with an apparent diameter of 41 arcseconds and a phase of 0.26. On January 9 next year, Venus meets the sun with an apparent diameter of 63 arcseconds and a phase of 0. (End)
Source: China News Network