|
M42 in Ha
Back to the eastern skies last night, where the guiding is good.... for me anyway...
Orion was sitting in a sucker-hole, so I very slowly, with no sudden moves, slewed the scope towards it, expecting it to close immediately! It stayed open for the next hour or more, so I grabbed some red photons!
Imaged with the DSI Pro II and Skywatcher 100mm f/5 scope, with 13nm Astronomik H-alpha filter, 10x2minute exposures and 10x15s exposures, guided with PHD and DMK/ED80. Outback cooler running a CCD temp at 21deg C (no more fog!).
A 5 minute exposure showed more detail, especially in the M42-M43 crossover region - I think combining 30s and 5 minute or longer would do a better job.... but that thing called work gets in the way......
|