Quote:
Originally Posted by Bassnut
The bubble thing image is impressive, and the detail in the other one is too.
Your an odd fellow. 30 min exposures, an obsessive calibration routine (32 flats/bias and 15 darks?) and only 10 mins processing time  , sheesh, what a mess   . |
Hi Guys
Thanks for the comments, there definitely is an improvement in signal with the 30 minute subs but there are a few things that have to be considered and taken care of first
1. The polar alignment has to be spot on
2. Guiding and tracking have to be working smoothly
3. The weather, if there are any clouds about then be prepared for disappointment, only one cloud came across in the whole evening which just meant me stopping the imaging run for 5 minutes.
These were taken with a 5nm Ha filter, 30 minutes with a luminance filter from where I live is imaging suicide.
The resulting calibrated and stacked frames were so high in signal and detail that the processing was very simple and quick, hence all the calibration frames, long exposure time and very short processing time. From a personal point of view the less processing you have to do the better the image
Best wishes
Gordon
PS Now that I have a very accurate polar alignment I may try some 40 minute subs later in the year depending on the subject and clear sky