In 21 September 2012, the Russian Astronomers Vitali Nevski and Artyom Novichonok, from the International Scientific Optical Network, discovered Comet ISON. The discovery was made using a 16-inch reflector, where the Comet was at a distance of 934 million km from the Sun, which is approximately 6 times the distance between the Earth and the Sun.

The preliminary calculations about Comet ISON states that its diameter is about 6.5 km. These calculations resulted from monitoring the vaporized snow and airborne dust from its surface as it moves closer to the Sun. In 28 November 2013, the distance between the Comet and the Sun will come to the closest approach to be 1,280,000 km, and astronomers call this distance perihelion.

In this light, the Planetarium Science Center (PSC) is organizing an Astronomy Night entitled “It is Seen Once in a Lifetime” prepared and presented by Dr. Omar Fikry on Thursday, 14 November 2013 at 4:00 pm at the Planetarium Theatre. The Astronomy Night is open-for-public.