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Friday, March 15, 2013

First Lght, Orion 8 f/5 Optical Tube

The scope arrived today, so did a quick collimation and put it on the CG5.  Didnt install the guider, so I thought I'd try some planetary stuff.  The first image I took was of the moon which came out pretty badly, being it was a thin crescent, and I attempted a closeup. 

After the moon, I hit up Jupiter, which was not too good either, but was better than the moon.  The first image is here....


Kinda blurred, but I did notice I could expand the planet to about double the image size that I could do with the 6 inch.  The detail is similar to what I got with the 6".  I took the image out of focus, and saw that the secondary reflection was not centered in the blur, so I did a quick touchup of the primary collimation.  Also, I installed the UV/IR filter on the webcam.

Then I shot this image:
Much better.  Seeing was  average.  Not real good.  Also, I'm not sure if the secondary mirror was aligned properly either.  I believe I can do better once the seeing improves and I get the scope working 100%.
Posted by Mike H - KD0AR at 8:11 PM
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2 comments:

Sypai said...

Very interesting, i think i need to purchase UV/IR filter too. It's give a nice results

March 25, 2013 at 9:13 AM
Mike H - KD0AR said...

I use a real low cost one. It does prevent blurring, but I do notice it cuts down slightly on the amount of light reaching the sensor, unless that additional light is in fact infrared. It does appear to sharpen the images when I use it.

March 27, 2013 at 4:57 PM

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