Unfiltered and 25 x 400 minutes from the AP180EDT f/9 and Proline3200 with Eng Grade KAF3200 operated at -45C I had an old flat field so I had to use the clone...
Looks great! I tried this one last year and quickly discovered how dim the dim regions really are. Good work. ... Maker of high quality carbon fiber scope...
richard looks like you're getting some darks skies out there...not sure where this is...are you living there full time now?..... the past few shots look...
Hi there - long time lurker - first (I think) time poster... Just wondered, with the impending 'no darkness' months of the summer here in the UK, does HA allow...
I don't get the all twilight sort of nights here in Northern Calif, but our nights are short during the summer: as little as 4.5 hours of useful darkness. A...
Hi Richard, I'm not suggesting imaging in daylight, but only in the twilight where stars are easily visible to the eye, but the background is a very dark blue,...
of course it will be affected by the twilight but the question is can you make an image that has reasonable contrast? I would submit that an image of NGC7000,...
Well - I've got 3 months coming up to find out I guess... Thanks for the replies though, Andrew ... can you make an image that has reasonable contrast? ... and...
Hi, I am a victim of heavy? light pollution as I do live in Mexico City but that does not hinder me in using my newly acquired QSI520i. I have read and seen a...
yes, What you suggest is OK but you are stuck with the emission lines that are there. The dominant ones are Halpha, Hbeta, [OIII], [SII], [NII] typically. The...
Hi Richard, Thanks a lot for that prompt reply. My intention is exactly the one you mention :-( I would like to get right colors on the stars. I guess I could...
Hi, One more comment. I just went into the Custom Scientific website and saw that they sell so called Continuum Filters for R=645nm, G=510nm and B=475nm with a...
if all you care about next is the star colors, then try the idea i proposed to get the nebula done that is where most of your exposure time will be spent then...
the continuum filters are used to subtract blackbody radiation from the narrowband filter's passband they are very specialized and are not for that use. here...
Hi Richard, ... still not very convinced that the Continuum should not work for my purposes. Sorry :-) I know you have a lot or even more then a lot of...
the continuum will work fine for taking rgb images but they are just narrow so they expose slowly what they are designed to do is to MISS the emission lines:...
Hi Richard, Thank :-) Again sorry for being so stubborn but I like to go news ways and explore all possibilities and so I thought that it could be a solution...
Sort of. :-) I was doing some Ha for a bit, but really didn't have the mount to handle on-board guiding with the ST8XE until recently (just got my brand new...
that's way better than my very first attempt with tricolor narrowband,. but there was no one to emulate in those days but the professionals so there was a lot...
Thanks, Richard. Yea--I actually read your article (a few times <g>) and it definitely helped a lot! There certainly isn't an over-abundance of reference...
Bob there are a few objects that have nearly equal signal in the three filters, but not too many that I have found. Among them: M1, IC410, NGC2174, NGC281 The...
Hello Richard and Bob. 1st of all, very good attempt Bob: I still have to have a 1st attempt and I
would be glad if it came out like yours! Second a question...
Hi Luca Nice to hear from you again I don't recommend binning the sulfur and oxygen differently than the halpha even though the signal is usually weaker, I...
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