Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2018 July 5
Image Credit & Copyright: Steve Cullen
Explanation: At sunset look east not west. As Earth's dark shadow rises from the eastern horizon, faint and subtle colors will appear opposite the setting Sun. This beautiful evening sea and skyscape records the reflective scene from a cruise on the well-traveled Alaskan Inside Passage in the Pacific Northwest. Along the horizon the fading sunset gives way to the the pinkish anti-twilight arch, more poetically known as the Belt of Venus. Often overlooked at sunset in favor of the brighter western horizon, the lovely arch is tinted by filtered sunlight backscattered in the dense atmosphere, hugging the planet's rising blue-grey shadow.
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
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