Recent astro shots

Here are some recent photos taken with my Celestron C8 and new CG-5 mount. The photos aren’t all that great but I wanted to post about them anyway. It’s been cloudy the last week and I’m going through astronomy withdrawal.

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Re-greasing a Celestron CG-5 mount

I recently bought a used Celestron CG-5 mount and decided that after verifying basic operation, the next thing to do was to take it apart and do some basic maintenance.

It’s well known that the Celestron mounts made overseas need some rework to get full performance out of them. They frequently contain “lube” that is more like glue, the gears need polishing to remove burrs and many of the plastic rings look they’ve been cut from milk bottles.

I’d done the same maintenance job on my Super Polaris mount which is almost identical to the CG-5 except that the CG-5 has brass gears and ball bearings rather than just sliding plastic rings.

Armed with information from Astroboy I set about disassembling my CG-5. Full pictures of the dis and re-assembly are in the gallery, selected pictures will be included here. I also won’t cover every single step since it’s already been covered by Astroboy.

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