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This month, four of the five naked-eye planets gather along the eastern horizon near dawn.
The celestial grouping is seen here just before sunrise on May 5, from a beach near Buenos Aires, Argentina. Starting near the top of the frame, the brightest beacon is Venus. Mercury is below and right of Venus and brilliant Jupiter is lower still, near image center.
Below Jupiter, Mars is relatively faint and struggles the most to shine through a thin cloud bank and the warming twilight glow.
As the month progresses the tantalizing configuration will change, with Mars and Jupiter moving higher while Venus and Mercury wander through the sky closer to the rising sun.
Originally posted by elevenaugust
Credits: Luis Argerich
This month, four of the five naked-eye planets gather along the eastern horizon near dawn.
The celestial grouping is seen here just before sunrise on May 5, from a beach near Buenos Aires, Argentina. Starting near the top of the frame, the brightest beacon is Venus. Mercury is below and right of Venus and brilliant Jupiter is lower still, near image center.
Below Jupiter, Mars is relatively faint and struggles the most to shine through a thin cloud bank and the warming twilight glow.
As the month progresses the tantalizing configuration will change, with Mars and Jupiter moving higher while Venus and Mercury wander through the sky closer to the rising sun.
APOD
Planet animation from April 28th to June 1st.
Sky and Telescope
Here are four planets lined up in the dawn sky, as seen from Chile on the morning of May 7, 2011 from a latitude of 23° South. They are Venus (top, bright) and next to it, to the right, Mercury, then Jupiter below, and Mars at bottom closest to the horizon and faintest. On this morning, Venus, Jupiter and Mars form an almost perfectly-spaced line of 3 worlds. The peak at left is the 5,900-metre-high Licancabur Volcano. While this planet grouping is rare and will get lots of PR, from Canadian latitudes, the planets appear very low in the pre-dawn eastern sky and will be buried in twilight. Only from a southern latitude, like here, do they stand high in a darker sky. However, Venus and Jupiter are bright and will show up in binoculars easily. They will be very close together on May 11 and 12. Photo © 2011 Alan Dyer