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.

2011 April 20
See Explanation.  Clicking on the picture will download
the highest resolution version available.

Rio Morning Moonset
Image Credit & Copyright: Babak Tafreshi (TWAN)

Explanation: As the Sun rose, a nearly full Moon set in this serene seaside vista captured last Monday from Rio de Janeiro, Brazil. In the foreground, the reddened early morning sunlight illuminates a stretch of South Atlantic coastline. Looking toward the west, a scene that is a familiar one to Rio's Ipanema beach goers, the favela Vidigal is nestled below the twin peaks of Morro Dois Irmãos (Two Brothers Hill). This well-composed multiple-exposure image recorded the steady progress of the dramatic moonset with a 6.5 minute gap between each frame. Flying from their nests at the break of dawn, all the ocean birds appear only in the last single frame.

View this page (with external links) online at
http://apod.gsfc.nasa.gov/apod/ap110420.html.

Tomorrow's picture: pixels in space


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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Official: Phillip Newman. Specific rights apply.
A service of: ASD at NASA/GSFC
& Michigan Tech. U.

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