Description
Comet Swan Photos – Comet Swan_C_2006_M4, taken on 10/31/06
The green Coma seen in the head of the comet is actually a poisonous gas called Cyanogen. When the approach the Sun the comets sublimate and shed a gas dust tail (reddish) and Ion tail (green blue).
alec bieber –
This is an great web site. i have a picture of all of the planets in one. its awesome that you made your own website and telascope