Find out the appropriate word and fill blank (viii).

Directions: In the given passage, there are blanks, each of which has been numbered.

In a ____(i)____ space event, Venus, the second closest planet from the sun, passed in front of the sun on 5 June 2012. The rare ____(ii)____ display began shortly after 2200 GMT on 5 June 2012 in ____(iii)____ of North America. Subsequently, it was ____(iv)____ in Central America, and the northern part of South America. The view at the time when Venus was ____(­v)____ the Sun was ____(vi)____, as a tiny black dot appeared on the solar _____(vii)_____. Venus is 100th of the _____(viii)_____ of the Sun, so while moving across from one side to the other, it was just a black spot placed over on the disc of the Sun. The celestial _____(ix)_____ which repeats itself after every 100 years, will now be rewitnessed only in 2117. The space phenomenon is _____(x)_____ on the Earth when the Venus passes between the Sun and the Earth.