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On your 2012 calendar, be sure to put a big red circle around June 5. On that day, a celestial occurrence that will not be seen by human eyes until well into the 22nd century — the year 2117 to be exact — will take place.
The planet Venus will cross the face of the sun.
Here is just one of many. Weird how calm the sun looks without any sunspots on it
Originally posted by Iamschist
Thanks for the heads up, calendar marked.
Here is just one of many. Weird how calm the sun looks without any sunspots on it
Nice picture, is the Sun really that calm or your camera can't pick up the turmoil?
Originally posted by Illustronic
I think this occurs every 19 months, a little more than a year and a half.
Transits of Venus are among the rarest of predictable astronomical phenomena. They occur in a pattern that repeats every 243 years, with pairs of transits eight years apart separated by long gaps of 121.5 years and 105.5 years. The periodicity is a reflection of the fact that the orbital periods of Earth and Venus are close to 8:13 and 243:395 resonances.