Home > Ephemeris Program, Planets, Venus > 05/18/2015 – Ephemeris – Venus, beautiful Evening Star or Earth’s evil twin?

05/18/2015 – Ephemeris – Venus, beautiful Evening Star or Earth’s evil twin?

May 18, 2015

Ephemeris for Monday, May 18th.  Today the Sun will be up for 14 hours and 55 minutes, setting at 9:07.  The Moon is new today, and won’t be visible and tomorrow the Sun will rise at 6:10.

Venus has been called the Earth’s twin because it is 95 percent the size of the Earth.  It is 72 percent of the Earth’s distance from the Sun, and that seems to be the thing that turned a planet, perhaps as endowed with the same amounts of water and other minerals as the Earth, into Earth’s evil twin.  Those nice shiny white clouds are not the water vapor clouds of Earth, but poisonous corrosive clouds of sulfuric acid droplets.  The air which is mostly carbon dioxide is dense, some 90 times the Earth’s atmospheric pressure at sea level.  The carbon dioxide  atmosphere creates a runaway green house effect, giving a surface temperature of over 800 degrees Fahrenheit.   Hotter, even than Mercury, the closest planet to the Sun.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.


Venus' clouds

The clouds of Venus in ultraviolet light as seen by Pioneer Venus in 1979. Venus’ clouds provide a blank face in visible light. Credit: NASA.

Venus' surface

A map of Venus surface produced by NASA’s Magellan spacecraft using radar: 1990-1994. Credit NASA

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