Thats great Ray ! I just tweaked my tif file and uploaded it to the group. what a difference. Cant figure out the masking though. Cheers !! --Ivor ... -- Ivor...
2195
ccd-newastro@yahoogro...
May 4, 2001 7:21 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the ccd-newastro group. File : /M5.tif ...
2194
Ron Wodaski
ronw@...
May 4, 2001 6:22 pm
That bright area on the left side is almost all on the blue image. You can learn some interesting things about the color balance of your images by examining...
2193
meteormik@...
May 4, 2001 6:01 pm
These are incredible shots for a first attempt. You can even see the straight wall in the first one. Keep up the good work. MM....
2192
Ivor Barker
ibarker@...
May 4, 2001 4:59 pm
http://www.employees.org/~ibarker/Astronomy/pages/m5.htm I think I have got the processing sorted now, although I still need to sort out flat-field and dark...
2191
Ron Wodaski
ronw@...
May 4, 2001 4:24 pm
Those rings act as light baffles, and they do some of the same job the flocking paper does: suppress reflections. You could cut rings of flocking paper to put...
2190
Dan and Carol
poziovahim@...
May 4, 2001 2:53 pm
Hi All, I've flocked my OTA and almost did the baffle tube's inside, but seeing the rings along the inside made me stop. I figured that the rings are probably...
2189
jimthomas@...
May 4, 2001 3:19 am
Below are links to two images I took last night. These are my first try at astrophotography. I'm using a NexStar5 scope and a CoolPix 990 digital camera....
2188
jeffh@...
May 3, 2001 10:10 pm
Thanks! I hope to get somw good Milky Way object shots this summer at f/6 with this camera. I also have a Takahashi CN-212, which will be great in Newtonian...
2187
William D. Carroll
carroll@...
May 3, 2001 9:04 pm
that's right, I'm not really good yet but I took this image http://carroll.dynip.com/latest/M51.htm with a engineering grade KAF1600L and just used allot of...
2186
James Schenz
jschenz@...
May 3, 2001 4:59 pm
Ron, I recognized the need for an odd number for the median combine, and arbitrarily chose 5 for my example. I will have to try this method and see whether or...
2185
James Schenz
jschenz@...
May 3, 2001 3:52 pm
... Hey, Jeff, what a fantastic panorama!! Wonderful detail and color. Have you tried any 2 x 2 binning? I think this would be a next step, particularly with a...
2184
Bob Holzer
holzer@...
May 3, 2001 3:44 pm
Hi Jeff: This is just unbelievable, it's huge! You are going to have incredible fun with the ST10. Bob ... From: <jeffh@...> To:...
2183
Ron Wodaski
ronw@...
May 3, 2001 3:27 pm
Yes, if you use both median combine and sum, you will get a S/N somewhere between the pure median combine and the pure sum. However, I would recommend ...
2182
James Schenz
jschenz@...
May 3, 2001 2:54 pm
Here's a question regarding combining images. Let's say I have 11 images of 4 minutes duration, all luminance for a B&W image. If I median combine the 11, I...
2181
jeffh@...
May 3, 2001 2:47 pm
Greetings everyone: I took delivery of a new ST10E from Anacortes last Thursday and got a chance for some clear skies on Saturday (briefly) and Sunday. I ...
2180
brianl@...
May 3, 2001 2:30 pm
Hi Richard, I agree that median combining will help considerably but going to longer exposures might then create trailed star images in addition to pixel...
2179
Ron Wodaski
ronw@...
May 3, 2001 2:21 pm
I've imaged with really, really low-class chips (engineering grade). These are much worse than class 3. Engineering grade chips have multiple column defects,...
2178
James Schenz
jschenz@...
May 3, 2001 1:10 pm
Good question, Jay. I also wondered if the use of a full calibration set - bias, dark, flat - would "eliminate" any noticeable problems with images made with...
2177
Jay
jstanley@...
May 3, 2001 1:02 pm
Looking around I see that SBIG offers some of their ccd's in class 1, 2 or 3. What would be the effects on imaging with a class 3 ccd? Does anyone own a class...
2176
Kevin Dixon
ksbtk@...
May 3, 2001 1:29 am
Good evening Ron: You were certainly right about the focus. The turbulence in the atmosphere made focus extremely difficult. Certainly, the most challenging...
2175
Sergei Pechenkin
sergei@...
May 3, 2001 12:04 am
[Non-text portions of this message have been removed]...
2174
cdurand@...
May 2, 2001 11:32 pm
Bob, Check out http://home.datawest.net/jkolb/ for sample images with the e-160. Wil Milan has an e-210 (http://www.astrophotographer.com/) so there might be...
2173
Ron Wodaski
ronw@...
May 2, 2001 3:51 pm
I had this same choice to make. Between the Epsilon 160 and the FSQ, I came down on the side of the FSQ. Of course, I already had the FSQ when I made this...
2172
Bob Holzer
holzer@...
May 2, 2001 5:13 am
Hi folks: While I am pretty close to making a final decision on the EM200 Temma & FSQ106, I wanted to make sure that I have considered all the alternatives. A...
2171
Ron Wodaski
ronw@...
May 2, 2001 3:17 am
I have noticed that the all of the groups are VERY slow today. And mail is taking forever to show up in the groups, though it seems to be improving over the...
2170
Burton Carl
carlburton2001@...
May 2, 2001 2:14 am
Is anyone else having problems accessing their MyGroup page? I have been trying for 2 days now. Also some of my other groups mail has stopped. Thanks Carl...
2169
Ron Wodaski
ronw@...
May 2, 2001 12:43 am
May targets galore; this is a great month!!! New stuff rising in the east: M57 Foxhead cluster (gorgeous in color) Crescent Nebula, Pelican Nebula, NA nebula,...
2168
Ron Wodaski
ronw@...
May 1, 2001 10:39 pm
The ST-237 will be good for the job; it has exposures down to a millisecond, I believe. You should have to down about that low to avoid over-exposure. If you...
2167
Kevin Dixon
ksbtk@...
May 1, 2001 8:48 pm
Good afternoon: Since the moon will be directly overhead after sunset tonight, I thought it would be interesting to try to capture some images of our nearest...
