Enchilada
31-12-2008, 11:39 PM
H.N.Y. 2009!
I do have just a general query about the imagers here and what software (if any) they do any measurements with.
Writing lots general observational text about double stars and planetary nebulae - is certainly now much easier in determining placement of these objects for visual observers via planetarium-like software or from net imargery. The aim of course is to just help observers identifying fields and the location for iffy deep-sky on the very limits or threshold of visibility.
I admit I find it sometimes very difficult to match what I see in the wonderful images generated by astroimagers against the visual appearance. The main issue for me is how big some nebulae and galaxies are compared to the visual size seen in the 'scope. Next fm is the brightness / surface brightness of objects, against the visual limits or deep-sky boundaries.
Personally, I have begun to use wide field images from various sources using the Centre de Données astronomiques de Strasbourg (CDS) JAVA software, ALADIN Version 5.9.
Does anyone else also use this software (or others) with their own produced images - like what if often shown here in this thread? What sort of things do you actually gather from your images other than the necessary stacking, colour balance and visual processing?
I do have just a general query about the imagers here and what software (if any) they do any measurements with.
Writing lots general observational text about double stars and planetary nebulae - is certainly now much easier in determining placement of these objects for visual observers via planetarium-like software or from net imargery. The aim of course is to just help observers identifying fields and the location for iffy deep-sky on the very limits or threshold of visibility.
I admit I find it sometimes very difficult to match what I see in the wonderful images generated by astroimagers against the visual appearance. The main issue for me is how big some nebulae and galaxies are compared to the visual size seen in the 'scope. Next fm is the brightness / surface brightness of objects, against the visual limits or deep-sky boundaries.
Personally, I have begun to use wide field images from various sources using the Centre de Données astronomiques de Strasbourg (CDS) JAVA software, ALADIN Version 5.9.
Does anyone else also use this software (or others) with their own produced images - like what if often shown here in this thread? What sort of things do you actually gather from your images other than the necessary stacking, colour balance and visual processing?