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Hmm this appears to be an alt-az mount. If they made a future version as an equitorial mount it would be even better for radioastronamy, and if it's strong enou
by penagwin 6y ago
Hmm this appears to be an alt-az mount. If they made a future version as an equitorial mount it would be even better for radioastronamy, and if it's strong enough astrophotography too. They're a lot more complicated though so it's understandable why they didn't go that route.
Especially if this is meant more for geostationary satellites and I'm guessing most satellites like NOAA aren't too bothered by the slightly rougher tracking. Plus I guess the passes are fairly short anyway...
- zenbryo 6y agoCorrect its and "Az-El rotator" intended for amateur radio and was not designed with any other purposes in mind, but this is just the first release. Main objectives were price and simplicity. But I hope to get a good enough response to release other versions in the future, especially a much tougher all-metal weatherproof version.
- buescher 6y agoJust add an equatorial wedge. Search terms: "DIY equatorial wedge"
- zenbryo 6y agoThx for the tip! Lots of different upgrades should be available later on and also I hope to build a community of open source designs and addons
- supernova87a 6y agoI thought equatorial mount is much simpler than Alt-Az for astronomy, hence why the earliest large telescopes used them. All you needed was to align the mount correctly, and then a simple clock can run the movement. Alt-Az requires a computer to tell the dials where to go at every step of the way and are very non-linear dependent on absolute position on the sky. Also Alt-Az gives a much more compact design. So as long as you have the computer to control it, isn't Alt-Az preferable?
- labcomputer 6y agoThat’s correct, but equatorial mounts also solve the problem of field rotation on long exposures (which, like the control problem, can be fixed with computers—-just stack short exposures and rotate in software). Field rotation isn’t an issue for radio astronomy, of course. I’m not sure I would say that equatorial mounts are less compact though.