Mini PLanet Killer Project

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llanitedave
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Posted: Thu Sep 24, 2009 11:56 am
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Square_peg wrote:
Chopin wrote:
I've read in a couple of places around the net (a potentially exaggerated arena, mind you) that enhanced coatings can produce more scatter, which would be a concern for a "planetary tuned" scope. Is this a wives tale?



Wives tale. Good enhanced coatings are indistinguishable from good standard coatings.


Actually, you can usually distinguish them by the price difference.

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Chopin
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Posted: Wed Sep 30, 2009 9:13 pm
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I went with standard coatings over semi-enhanced to be on the safe side. As it turns out there is less of a difference than I initially expected. I didn't think the extra 1.23% of reflectivity in the range of visual acuity was worth the risk on a 4?" instrument.

The good news is that the mirror should be in my hands later today! I have a few images to put up, and unfortunately I forgot to document the progress of the secondary and spider which already resides in the OTA. Sheer laziness.

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Square_peg
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Posted: Wed Sep 30, 2009 9:33 pm
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Chopin wrote:
The good news is that the mirror should be in my hands later today!


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Tom (Pegster)

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Chopin
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Posted: Thu Oct 01, 2009 5:14 am
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Yup...that's how I'm feeling right now! :grin:

Here's the inside of the focuser tube, flocked.

[ img ]

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Jason® (Admin...and spoke-folk)
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Square_peg
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Posted: Thu Oct 01, 2009 9:03 am
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Looks like you'll get this together just in time for Jupiter and Mars.

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Chopin
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Posted: Thu Oct 01, 2009 3:35 pm
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Tis me plan, matey! Yeah, I'm guessing the 3-6 Nagler Zoom will be getting a real workout over the next few months. Maybe longer...when does Saturn return?

I took delivery of the mirror today as planned, and it looks great upon naked eye inspection (thanks Cary). I put the scope back together today, and collimated it as best as I could for now. The new red "catseye" triangle made collimation incredibly easy.

I did take some more pictures, once I throw them up...maybe tomorrow.

Next official step is to install the TeleVue SolSearcher, and the scope should be ready for day and night solar system action. Ultimately I'd love to do some star testing this weekend, but weather and soccer may take precedent until I get more time.

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Erik
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Posted: Thu Oct 01, 2009 10:59 pm
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Looking good, Jason! :)

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