The Horsehead Nebula, Barnard 33 and
IC 434.
One of the most popularly known celestial objects to
amateur astronomers is the Horsehead Nebula.
Situated in the constellation of Orion, the Horsehead Nebula is a dark
nebula about 1500 light-years away. The familiar
horse-head shape (left-centre image) is formed from a dark non-luminous
cloud
(Barnard 33) that silhouettes itself against the red glow of the
background emission nebula IC 434.
| Image Details | 20060323 |
| Image Field of View | 33 arc-minutes wide (approx.). |
| Telescope | 12-inch f/5 newtonian telescope. |
| Guiding | hand guided with 4.5-inch guide-scope. |
| Camera |
Canon EOS 300D Digital - Hα/IR enabled. |
| Exposures | 13 x 4 minute
exposures @ ISO400. 3 x 4 minute dark frames, 5 x 0.5 second flat-field frames, 5 x 1/4000th second bias frames. |
| Total Exposure time | 52-minutes. |
| Filter/Equipment | Used Baader Multi-purpose Coma Corrector. |
| Sky Conditions | Seeing: 6/10. Wind: 1/10. Moisture: 2/10 |
| Ambient Temperature | 19°C |
| Notes | Fast moving clouds ends imaging session. |
| Processing | Iris, Photoshop, Noiseware CE. |
(C) Copyright 2006 Paul Mayo.
paulm@skylab.com.au