Venus Blazes Beside the Moon
Written by Fraser Cain
Image credit: Sky and Telescope
Treat yourself to an eye-catching celestial treat on Monday evening, February 23, 2004. At dusk, just look to the west. There you'll find Venus, the magnificently brilliant "Evening Star," blazing to the right of the crescent Moon. Provided it's clear, you can't miss this celestial splendor. Venus will outshine every star in the sky and may even appear about as bright as the 3?-day-old Moon itself.
The Moon will have only about 15 percent of its disk illuminated by the Sun. But look closer and you will likely make out the rest of the lunar disk glowing faintly ? you may even see the Man in the Moon. This effect is known as earthshine. What you are seeing is reflected sunlight from Earth shining onto the Moon's night landscape, providing a dull illumination.
Venus is so brilliant for two reasons: it's closer to the Sun than Earth so it gets lit more brightly, and its white clouds reflect sunlight very well. Although the Moon and Venus look close together, they're actually at very different distances. On the night of the 23rd, the Moon is 244,000 miles (392,000 kilometers) from Earth, but Venus is 370 times farther: 90 million miles (145 million km) away. Venus is sometimes called our sister planet because it is similar in size to Earth.
For members of the broadcast media, the timing of this celestial pairing will make for a perfect opportunity to take your cameras outside for a live shot during the evening news. Be sure to take advantage.
Original Source: Sky and Telescope News Release
Filed under: Astronomy
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