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Messages 42928 - 42957 of 43151   Newest  |  < Newer  |  Older >  |  Oldest
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42957
... Also note that not all GEMS are going to be good enough for imaging DSOs if you want to eventually go that route. I suggest doing some research on...
John
johnwunderlin
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Nov 13, 2009
5:11 pm
42956
Hi Darrell, Wow ... what a hard time you had, but glad you made significant improvements. I have the Orion SkyQuest XX12i IntelliScope Truss Dobsonian, and do...
Dan
dg_frezza
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Nov 13, 2009
4:36 pm
42955
Er...uh...that would be SpencER. (Glad it's Friday). ... * * *...
darrellrspencer
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Nov 13, 2009
4:27 pm
42954
... The far east solid tube dobs (Orion, Hardin, etc) have two common pinch points on the mirrors. The main one, you found - over tightened primary mirror...
RapidEye
rapideye.geo
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Nov 13, 2009
4:21 pm
42953
Hi folks! New to this forum, but am very active on numerous others, Cloudy Nights, Astromart, etc. Been active (on and off) in astronomy for several decades....
darrellrspencer
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Nov 13, 2009
4:08 pm
42952
Thanks John. I appreciate your comments. I've heard a lot of good things about the GEM mounts also. I have an equatorial mount for my 6" reflector, but I am...
Dan
dg_frezza
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Nov 12, 2009
5:55 pm
42951
... I love astrophotography. I think it's really cool being able to record celestial objects. Using a Dob for imaging can be fun as a novelty, but if you...
John
johnwunderlin
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Nov 12, 2009
5:36 pm
42950
Thanks for the information thats just what I wanted to hear. Ordered the xt10i last week, its still not arrived so I think I will have to chase it up tomorrow....
chrishoyland33
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Nov 11, 2009
10:45 pm
42949
... The 12mm Type 4 Nagler is easily my favorite eyepiece in my XT10 and it reaches focus easily near mid travel. *Note* that this is a 1-1/4" eyepiece and I...
plefever@...
kb0nes
Online Now Send Email
Nov 11, 2009
10:25 pm
42948
Outstanding EP for the X10! And the used prices have been dropping on Astromart.com with TV Ethos coming out. I never had a problem with mine and there's...
bmwbob
Online Now Send Email
Nov 11, 2009
8:59 pm
42947
I'm thinking of getting a nice new eyepiece to go with my new scope (the xt10i, when it arrives) and I'm thinking of getting a Nagler 12T4 but I have read...
chrishoyland33
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Nov 11, 2009
8:39 pm
42946
Hi Gene, The seeing wasn't that great; altitude, I am guessing around 28 degrees or so. Not very high. In my case, light wasn't a problem at all; metering has...
Dan
dg_frezza
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Nov 11, 2009
1:57 am
42945
... Wow! The metering kicks in and you get bands. What altitude was Jupiter when you took the shot? Looks like lots of atmospheric refraction (here we go...
g2baraff
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Nov 11, 2009
1:45 am
42944
FYI, Last week, I did an experiment with an old webcam, 1 1/4" adapter, and a 2x barlow with my 12" Dob. Not sure if I will spend any more money on this...
dg_frezza
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Nov 11, 2009
1:01 am
42943
Hi Gene, It's interesting to hear the comments concerning this problem, but I feel there is some basic explanation that hasn't been uncovered or overlooked...
Dan
dg_frezza
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Nov 10, 2009
11:56 pm
42942
... O.K. I'm all out of suggestions. Maybe somebody like Dan or Steve or one of the other good guys will come up with something that makes more sense that I...
g2baraff
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Nov 10, 2009
11:18 pm
42941
... It's Fall already, Gene ;) Summer done slipped away. At 7:30 PM Vega is long past culmination, about 45 degrees above the WNW horizon. Steve and Dan both...
JohnA
also_nc
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Nov 10, 2009
10:48 pm
42940
Hi Gene, I know about these and other equations, but, I don't know what the Intelliscope uses. So, trying to plug info into these and other equations, doesn't...
Dan
dg_frezza
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Nov 10, 2009
4:00 pm
42939
Same here, John. Dan...
Dan
dg_frezza
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Nov 10, 2009
3:58 pm
42938
... The phone jack connectors are designed to have a little give in them. If you want to be sure it's working properly, use the hidden functions to test the...
John
johnwunderlin
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Nov 10, 2009
3:55 pm
42937
Anyway, it is more of a curiosity than a concern. There are always several other alignment stars available, so not being able to use Vega is no problem. Still,...
Steve Strange
pod398sds
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Nov 10, 2009
3:49 pm
42936
... Dan mentioned places in the sky tha you should keep away from for alignement puposes. The ONLY place that is a problem for an Alt Az mount is the zenith....
g2baraff
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Nov 10, 2009
2:57 pm
42935
... Try this: http://www.asahi-net.or.jp/~zs3t-tk/aim/aim.htm These are basic equations for doing the change from the one coordinate system (the one attached...
g2baraff
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Nov 10, 2009
2:55 pm
42934
John, I just checked my Intelliscope Object Locator for the software version, and it gives v1.49. I purchased my 12" Truss Dobsonian with the locator earlier...
Dan
dg_frezza
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Nov 10, 2009
1:35 pm
42933
... Old, but not that old! Make that a 2004 model. John Alsobrook North Carolina...
JohnA
also_nc
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Nov 10, 2009
1:25 pm
42932
... To clarify, I really don't think Fomalhaut is the cause, but rather, Vega. I'm at 35.07 deg latitude, so Sunday night at 7:30 PM, for example, when I last...
JohnA
also_nc
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Nov 10, 2009
1:15 pm
42931
... No. It doesn't. I'll check my numbers again. (I sometimes do that after a couple of glasses of wine with dinner -- posting I mean without double...
g2baraff
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Nov 10, 2009
2:59 am
42930
Hi Gene, That's perfectly okay. BTW, I checked the Intelliscope's manual, page 25, and #10 near the bottom of the page, it talks about refraction. However...
Dan
dg_frezza
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Nov 10, 2009
2:07 am
42929
... When I first read your answer, Dan, I thought that it might be more reasonable than anything I had thought of (or was about to think of)So I did some...
g2baraff
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Nov 10, 2009
12:00 am
42928
John, Since the two stars you mentioned are least 91 degrees in separation according to my program I use, ECUPro5, my thought on this would be, if refraction...
Dan
dg_frezza
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Nov 9, 2009
9:33 pm
Messages 42928 - 42957 of 43151   Newest  |  < Newer  |  Older >  |  Oldest
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