Sunlight, especially the UV portion if the spectrum, has a tendency to start bleaching anodized aluminum parts. If you are keeping your rig outside under a scope cover, it's good to check if the brand you purchased is resistant to UV rays. There are some cheaper brands that may protect against rain and weather, but the UV can still penetrate. So the bleaching can start happening on lots of other things other than the tripod legs like the mount itself, dovetails, camera bodies and anything else with an anodized coating. Painted items like OTAs can start to lose their color as well, depending on how good a job the manufacturer did when making it.
CS all,
John
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Losmandy G11G2 on pier; refurbed Losmandy G11 with OnStep controller; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED with field flattener; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user
