Though the comet has entered the solar system in July and is visible through telescope presently, it can been viewed through naked eye from Nov 28 till December-end as it gets closer to the sun at a distance of 150 million km from the earth, Bharat Gyan Vigyan Samithi official H.S. Jayakumar told IANS.The Samithi is an organisation promoted by the scientific community of the premier Indian Insti