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News for Norther Colorado and the world

Monday, December 22, 2014

Posts Tagged ‘sunset’

Sky Tonight—May 12, How to see the green flash

Sky Tonight—May 12, How to see the green flash

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org The image today is a classic image of a detached green flash, seen at sunset. You can see green flashes with the eye, sometimes, if you are looking toward a very clear horizon. You must be looking just at sunset, at the last moment before the sun disappears below the horizon and you have to be careful not to look too soon. Wait until just the thinnest rim of the sun appears above the horizon. If you look ... Full Story

Earthsky Tonight—August 6, Mercury challenging, but

Earthsky Tonight—August 6, Mercury challenging, but easiest to see around August 6

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Mercury, the innermost planet of the solar system, is not often visible in our sky because it is always near the sun. When this inner world does become visible, it appears but briefly in the evening after sunset – or in the morning before sunrise. At present Mercury shines as an evening “star.” Today, Mercury reaches its greatest elongation for the entire year: 27 degrees east of the sun. (Your fist at an arm length ... Full Story

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