If you want to know the sunset time at your location, you can use the interactive map of "Sky Navigator" on the homepage of the Taipei Planetarium website to calculate it accurately.

(Extracted from the website of "Taipei Planetarium Planetarium Navigation")

[Reporter Cai Yahua/Taipei Report] As the time sequence enters winter, the pace of darkness is getting faster and faster. In the public impression, the winter solstice is the shortest day of the day, so it is natural to think that the time of darkness is also the fastest. In fact, it is not the case. Taipei City Astronomy and Science Education Center It is pointed out that the "earliest sunset" in various parts of Taiwan this year is on November 29 or 30, not the winter solstice (December 22) as generally believed, and the earliest sunset time will vary depending on the observation location.

According to the planetarium, in addition to geographical location, factors such as the inclination of the earth's rotation and the elliptical orbit will have an impact on the date and time of the earliest sunset, which must be calculated through complex calculations.

If you want to know the sunset time at your location, you can use the interactive map of "Sky Navigator" on the homepage of the planetarium website to calculate it accurately.

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The planetarium pointed out that the earliest sunset time will vary slightly depending on the observation location. Taking the Taipei Planetarium as an example, the earliest sunset this year is on November 30 at 5:04 p.m. Sandiaojiao is also on the 30th, with sunset time at 5:3 pm; the southernmost and westernmost Kenting and Qigu are at 5:13 pm on November 29.

Sunset is a good time to capture the beauty of nature. According to the planetarium, when the sun falls to the sea level, there will be a short "green flash" under the refraction of the atmosphere, which lasts less than 2 seconds. It is very rare to see, so the "green light" In songs, movies and literature, it is often endowed with the connotation of happiness; if the atmospheric conditions are good, there is a chance to see the more precious "blue flash". People may wish to try their luck when watching the sunset.

When the sun falls to the sea level, there will be a short "green flash" under the refraction of the atmosphere, and there is even a chance to see a "blue flash".

(Provided by Taipei Planetarium)