Last night's imaging effort was a short narrowband sequence of the HorseHead Region. Imaged with the FSQ-106 and STL6303E, single exposures of 60 minutes...
One of the H-alpha images taken a few days ago. A single 60 minute exposure with the FSQ-106, STL6303E, Astrodon's H-alpha filter, autoguided with an ST402me...
Michael, Excellent images again. Your are the One Hour Bandit! I actually like the original color scheme better, maybe because it is different. Unbelievable...
Well, did I get your attention? Ok, it is just another mosaic... :) This is a 9 panel mosaic of the Virgo (and Coma Berenices) galaxy region. It includes...
Rub it in, Doc! That's one of the reasons my house here goes on the market next week and why I'm currently looking for a property in the SW US after 25 years...
Hello Brian, The internal guiding function of the STL6303 is certainly useful, but it is much more difficult to find a guide star with the narrowband filters,...
Hello all, In Ron's book, there is a process description for removing gradients by removing all the stars from the image and leaving just the gradient. This...
The problem is that if you brighten it, you are increasing the signal levels - and the noise. As with any calibration frame, you have to take the noise levels...
Hello to All New today to the group. Excuse what may be a newbie type question. I tried to search the archives-no help. I see in this and other groups...
I'll have to try it. As you say in your book, first "smooth it like crazy". Maybe that will solve the noise problem. ... signal levels ... the noise ... ...
Mike, Are you implying that the CCDcommander software will not use an external guider for the guide star selection? I am surprised because the external guider...
Bob, I would like to thank you for retrievng your clouds. Although we really enjoyed the use of them this winter, we would like to return them for a full...
Rick, I don't know if Mike was implying that or not. But CCD Commander will use any guider, internal or external. It will also automatically determine a...
Matt, I am sorry. I was not meaning for the question to go like this. My question was if the Ha filter (nothing to do with the software) caused "guide issues"...
I've had it with my mirror flop and focusing issues using my SCT (C11). I'm looking for: 1) a recommendation on a zero-shift focuser, i.e., Optec TCF or Van ...
Brian, I think you meant to ask Mike that question. However, I can help out (I think :) ). Depending on the bandwidth of your Ha filter, it will reduce the ...
... ... My advice - go ahead and purchase that new RCOS. That will pretty much force the issue <g> ... Lou P.S. I don't think you can go wrong with the Optec...
Hi, What is the easiest way to beging drift alignment procedures with my setup? Is PoleAlignMax liked by imagers? Is this one of the better ways to achieve...
Matt, I think I will give it a look soon. Will it handle calibration or do you do that manuallly one time, feed in the Dec and then switch over to auto mode? I...
Hi Rick, I've used PoleAlignMax only a few times, but each time it worked flawlessly: in less than 15 minutes, I was able to get to less than 1 arcminutes away...
Hi Steve, The numbers will tell you only if the flat has sufficient exposure, but not how well it'll correct a real image. The best way to test a flat is by...
Matt, that's a really great image. Love the huge vista you've assembled here. Don't see any seams on the mosaic, either :-) Regards, -Paul ... M91, ... camera....
As Paul noted, the only way to tell if a flat is a good one is to apply it to an image - if you get a flat background, it's a good flat (except for light...
Albert, I was very pleased with the Optec TCF when I imaged with my C11. The temp compensation worked reasonably well...My C11 was the older aluminum version,...
The Hubble takes many of its images through narrow-band filters. Most CCD imagers use filters that have a very wide pass band - all red, all green, all blue...
That's a lot of galaxies, and so many of the them have clear and interesting details. Quite amazing if you look at the full-size version. Processing seems to...
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