Name: Rosette Nebula, Caldwell 49
Date: 27 & 30 December 2013
Exposure: 4;12 Hr ISO400, 42x 6min with IDAS LPS P2 filter
Telescope: 8" Newton f/3.8 800mm with GPU f/4 coma corrector
Mount: NEQ6-pro, controled by EQmod/CdC, guided by QHY5/9x50 Finder Guider/PHD
Camera: Canon 450D Baader modified,
Location: Prinsenbeek, The Netherlands
The Rosette Nebula is a large region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The cluster and nebula lie at a distance of some 5,200 light-years from Earth and measure roughly 130 light years in diameter. The radiation from the young stars excite the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.