Quote:
Originally Posted by DavidLJ
As to the timing of the image, your sky atlas program may be able to tell you that. For example, the one that I use indicates that star HD 28608 is very close to the center of frame 1 and at 10 o'clock at night that star is best imaged next in mid-December at the dark of the Moon when it will reach an altitude of nearly 45 degrees. The sky atlas also provides guidance as to exposure time.
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Yep, it's easy to work out the best timings for an individual panel by hand. However, let's say I'm planning a larger mosaic:
* 4x6 panels - each 10x15 degrees,
* 25-30 mins of data per panel,
* shot over two nights in Winter between 9 pm and 3 am, and
* keeping all imaging as close to the meridian wherever possible (i.e. +/- 7.5 degrees).
It would be a pain to work out which panels to take, when, and where...
Anyway, just a thought experiment! I'll stop derailing your thread now