Skywatcher 130/650 Newt and Star Discovery mount $500

[rrussell1962]

Having a bit of a clear out and selling my grab and go Skywatcher 130/650 OTA and Star Discovery mount. Looking for $250 for the OTA and $250 for the Mount but would rather sell as a package and will chuck in the Skywatcher WiFi adapter if anybody takes them both for $500. I would prefer pickup in the first instance and so will initially prioritise any offer where the buyer can collect. I have spotted the mirror with a Catseye Hotspot and done the milk jug washer thingy on the secondary. Thanks for looking. Oh, messages only thanks and cash or PayPal for payment. Advertised elsewhere.

[astronobob]

Hi Russel,,

Just wondering what this "milk jug washer thingy of the secondary" is & does etc, to my understanding I assume you have made a plastic washer out of a Milk container, but would like to know where it has been placed in/on the 2ndry assembly and what purpose has it been applied for,, advantage if Im not mistaken,, ?

Also, how do you find or rate the effects of Color abberations, inparticular on planets considering being an F/5 reflector ?

Thnx & kind Rgrds

[rrussell1962]

Hi Bob, the plastic washers sit between the spider hub and secondary mount. The collimation screws bear against the plastic washers. It makes rotating the secondary a bit easier for collimation. Being a Newtonian there isn't really any false colour apart from what comes from the eyepiece. At F5 there is a bit of Coma. It's not the greatest planetary scope in the world obviously, I really use it for low and medium power views of bright nebulae and open clusters which it does pretty well.

[astronobob]

Very good thnx Russel, and agree most smaller scope 2ndry's do suffer with rotation, and good to hear the Parabilizing of the main has been done reasonably well :thumbsup: Also yes, quite a short F/L for planets, I used to have many scopes, but sold up a few yr ago now.
Atleast a 5mm ep on this for planets would betterra than a 350mm camera lens :rofl:
Just thinking of a grab & go scope for socializing occasions :thumbsup:
Rgrds