I could be persuaded Instagram may have some value:

Manhattanhenge, July 12, 2012 – photo by Henry Sene Yee
Even a bigger hit the second day in July (it also occurs two days in May).
But can this be accurate?
As the astrophysicist Neil deGrasse Tyson put it on the Hayden Planetarium website, “Manhattanhenge may just be a unique urban phenomenon in the world, if not the universe.”
Surely there is a phenomenon almost as cool, somewhere in the American Midwest or Mountain West, perhaps, where the good Presbyterian, Lutheran and Mormon pioneers laid out their cities and entire states with clean Cartesian grids . . . anyone got information to correct Dr. Tyson?
Maybe the question to ask, perhaps from Tyson, is how to calculate when an east-west street in your town might get a “henge” moment.
For example, how about a special sunrise at Delicate Arch, in Arches National Park? Or at Newgrange, Ireland?

December 20, 2009, solstice sunrise at Newgrange, Ireland – Photograph by Cyril Byrne – courtesy of The Irish Times (Astronomy Picture of the Day, NASA)
Related articles
- Tyson figures out how to make astronomy popular: Name it “Manhattanhenge,” watch the millions flock to see it (timpanogos.wordpress.com)
- Sun Turns NYC into ‘Manhattanhenge’ Tonight (space.com)
- 18 Unbelievable Manhattanhenge Photos [GALLERY] (bostinno.com)
- Manhattanhenge’s sunset show wows New Yorkers (photoblog.msnbc.msn.com)
- Sunset to transform New York City into ‘Manhattanhenge’ (csmonitor.com)
- New Yorkers marvel at ‘Manhattanhenge’ sunset (7 Pics) (mytechnologyworld9.blogspot.com)
- Manhattanhenge (thestarryeye.typepad.com)
- Sun Turns NYC into ‘Manhattanhenge’ (news.discovery.com)
- Manhattanhenge 2012, Viewing The Setting Sun As It Aligns With the East-West Streets of Manhattan (laughingsquid.com)
- Cameras roll on ‘Manhattanhenge’ (photoblog.msnbc.msn.com)
- Manhattanhenge: A Unique Bi-Annual Photo Op for New Yorkers (petapixel.com)
- Sun Turns NYC into ‘Manhattanhenge’ Tonight (livescience.com)
[…] Manhattanhenge, Part 2 […]
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Bob, I’ve been laughing at that all day. Thanks!
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In re: Manhattanhenge…. doubtless archaeologists a thousand years from now, excavating Tel Manhattan will write learned articles pointing out that the builders of the ancient city were careful to lay out their streets so that on two particular days of the year, the rising or setting sun would align perfectly with them, and conclude therefor that those two days must have had tremendous religious significance for the ancient occupants of the city.
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