Dispersion of Venus
Taken by Meiying Lee on August 22, 2023 @
Taipei, Taiwan
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Details:
When celestial objects are just rising or setting, the rays of light they emit or reflect from sunlight, as they pass through the Earth's atmosphere, undergo refraction and separation into different colors, creating the "dispersion phenomenon." The colors at the upper edge of these celestial objects can range from blue, green to purple, while the colors at the lower edge are almost always red.
Recently, Venus in the eastern sky just before sunrise was very close to Earth, with a small phase and a large apparent diameter. The dispersion phenomenon was quite apparent when it was low on the horizon. The two video segments were recorded with a 24-minute interval and put together for comparison. It's clear that in the first segment, Venus had a lower altitude, making the dispersion phenomenon very noticeable. In the second segment, Venus's altitude had risen to about 13 degrees, and the dispersion phenomenon was much less pronounced!
The video link is: https://youtu.be/tJGiAeciHE8.
Photographer's website:
https://www.facebook.com/meiying.lee.98/
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