DAVE MASON   ASTROPHOTOGRAPHY
IC 1805 THE HEART NEBULA


The Heart Nebula, IC 1805, lies some 7500 light years away from Earth and is located in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons. The very brightest part of this nebula (the knot at the bottom right) is separately classified as NGC 896 and IC1795, The Fishhead Nebula.
The nebula's intense red output is driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.



Technical info: 
TS 80mm f6 APO triplet refractor - Canon 40D - exposure - Total 6hours 23 min (72x300sec)

 <<< BACK / TERUG