Saeid Amiri's blog

What is it? It's a rare celestial phenomenon when the planet Venus locates in between the Earth and the Sun, such that observers on the Earth can see it passing through the Sun. It's indeed rare, as a pair of Venus transits, happen almost every 120 years. The last pair occurred in 2004 and 2012. I am glad that I was able to observe both. Due to the inclination of the Earth and the Venus orbit, it takes this long so that such transit happens. If there was no inclination, then we would see Venus Transit quite frequently.  I observed the first one in the Zafaranieh observatory (2004) and the second one on the roof of our house (2012). The photo I took in 2012 using my digital camera Past transits Prior to the pair of transits we experienced a few years ago, there were transits in the late 1800s. William Harkness, an astronomer at US Naval Observatory was one of the people who observed the transit in 1882, he was wondering about how the world looks like in June 2004, when the next