Shameless plug: been working on https://www.streethenge.com for sometime. You type in a street and it shows whether the sun ever aligns with it at sunrise or sunset, and when (date, time, compass bearing). Works with the moon as well.
It works for any street, and there's an add to calendar button for the next alignment. One warning: street lookups go through public OSM APIs, so the occasional query can time out due to api limits. I haven't figured out what to do about that yet without exponentially increasing the size of the app.
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Shameless plug: been working on https://www.streethenge.com for sometime. You type in a street and it shows whether the sun ever aligns with it at sunrise or sunset, and when (date, time, compass bearing). Works with the moon as well.
Here's the page for Manhattanhenge: https://www.streethenge.com/henge/new-york
It works for any street, and there's an add to calendar button for the next alignment. One warning: street lookups go through public OSM APIs, so the occasional query can time out due to api limits. I haven't figured out what to do about that yet without exponentially increasing the size of the app.