![]() If the streets on the grid were rigorously north-south and east-west, then both sunrise and sunset would be aligned on the days of the vernal and autumnal equinoxes (which occur around March 20 and September 23 respectively). The same phenomenon happens in other cities with a uniform street grid and an unobstructed view of the horizon. In the following table, "full sun" refers to occurrences of the full solar disk just above the horizon, and "half sun" refers to occurrences of the solar disk partially hidden below the horizon. The dates on which sunrise aligns with the streets on the Manhattan grid are evenly spaced around the winter solstice and correspond approximately to December 5 and January 8. The event has attracted increasing attention in recent years. In 2014, the "full sun" Manhattanhenge occurred on May 30 at 8:18 p.m., and on July 11 at 8:24 p.m. The precise dates of Manhattanhenge depend on the date of the summer solstice, which varies from year to year, but remains close to June 21. The date shifts are due to the sunset time being when the last of the sun just disappears below the horizon. A more impressive visual spectacle, and the one commonly referred to as Manhattanhenge, occurs a couple of days after the first such date of the year, and a couple of days before the second date, when a pedestrian looking down the centerline of the street westward toward New Jersey can see the full solar disk slightly above the horizon and in between the profiles of the buildings. This rectilinear grid design runs from north of Houston Street in Lower Manhattan to south of 155th Street (Manhattan) in Upper Manhattan. Thus, when the azimuth for sunset is 299° (i.e., 29° north of due West), the sunset aligns with the streets on that grid. In accordance with the Commissioners' Plan of 1811, the street grid for most of Manhattan is rotated 29° clockwise from true east-west. I named that Manhattanhenge, sort of harkening back to my early days thinking about the alignment of the sun and structures that we might build." and that stuck with me, which is why I named this phenomenon in Manhattan where the sun sets along the street grid. I visited Stonehenge as a kid at age 15 on an expedition that was the expedition head. In a later interview, Tyson stated that he coined the term, and that it was inspired by a childhood visit to Stonehenge on an expedition headed by Gerald Hawkins, an astronomer who was the first to propose Stonehenge's purpose as an ancient astronomical observatory used to predict movements of sun and stars, as outlined in his 1965 book Stonehenge Decoded. The phenomenon (but not the term "Manhattanhenge") was described by Neil deGrasse Tyson, an astrophysicist at the American Museum of Natural History and a native New Yorker in 1997 in the magazine Natural History. The term Manhattanhenge is a reference to Stonehenge, a prehistoric monument located in Wiltshire, England, which was constructed so that the rising sun, seen from the center of the monument at the time of the summer solstice, aligns with the outer " Heel Stone". With enabled javascript you could choose the location from a graphical map or search for an address.Skaters turn into East 15th St. After this you can download your personal 'Blue Hour / Golden Hour' table as PDF-file. The closer to the equatorial area the location the less is the duration.īy entering the values in the form and pressing the 'Submit' button a monthly table with all the needful data will be created. ![]() The duration of this outstanding mood of light varies for both - 'Blue Hour' and 'Golden Hour' - based on the geographic location and the season. These facts gives photos more structure and an outstanding mood of light. The sun is near the horizon and the light, with it's golden color, is very warm. The 'Golden Hour', sometimes called 'Magic Hour', is a time frame shortly after sunrise and before sunset. Another impression is the mixture of the blue natural and the warm artifically lights. ![]() This characteristic blue is based on the fact that there is neither full daylight nor complete darkness as the sun is below the horizon. ![]() The name 'Blue Hour' comes from the blue colored sky. The 'Blue Hour' is a mostly short period of time direct before sunrise and after sunset.
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