3 ms·
Things rotating up is only true for stuff that is close to the Eastern or Western horizon. And yes different times of the year help a lot, but there is plenty o
by petschge 5y ago
Things rotating up is only true for stuff that is close to the Eastern or Western horizon. And yes different times of the year help a lot, but there is plenty of objects that are only visible a bit over the horizon at the best of times. Source: have help a radio astronomer with source visibility calculations.
- Retric 5y agoSure, and Polaris is never visible from Australia etc. But, it’s a much weaker argument to say these constellations limit observations by less than 10%. The reality is there is real impact, but no where near as bad as many generally portrayed. Imagine some senator canceling funding for new ground based telescopes because they heard these satellites would render them useless.
- petschge 5y agoI have heard astronomers estimating it at up to 30% of the observing time for existing optical telescopes. Note that this is the instrument class that has t to 20 times as many proposals as they can actually observe.
- Retric 5y agoYep, and others say it’s less than 1%. Neither of them are lying, but their talking about different kinds of observations. My assumption is scheduling should solve most of these issues in terms of large instruments.