The Colors of IC 1795
http://apod.nasa.gov/apod/ap091210.html
IC 1795 is a star-forming region in the direction of Cassiopeia. This picture displays the nebula's gas and dust clouds. Interstellar matter consists mostly of gas, with some dust. 99% is gas, and of this, 75% is hydrogen. The dust is often made up of carbon, silicates, and ice. IC 1975 also contains sulfur. In the picture, blue corresponds to oxygen, green to hydrogen, and red to sulfur. IC 1975 is close in the sky to IC 1805 and the Double Cluster of Perseus.
No comments:
Post a Comment