Sunrise & Sunset Times - Rio2016

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Cheers, Ralph

How quickly does the Sun move?

Did you know...

1) ...the sun's altitude changes most rapidly during early morning and late afternoon hours.

For Toronto...

...typically about 1 degree per hour around noon

...up to about 11 degrees per hour early and late in the day

...the rate of change is greater in summer than winter.

2) ...the sun's direction changes most rapidly around noon.

For Toronto...

...typically about 10 degrees per hour early and late in the day

...up to about 38 degrees per hour at noon on June 21

...the rate of change is much greater in summer than winter.

Cheers, Ralph

Sun Location at Spring Equinox 2016

Did you ever wonder where the sun will be at the moment of an Equinox?

The sun will be over central Indonesia at the moment of the Equinox on Mar 20, 2016, at 4:30 UT (12:30 AM EDT).

image by Ralph Bouwmeester

Google image annotated by Ralph Bouwmeester

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Cheers, Ralph

Torontohenge 2016

Torontohenge is the name given for the phenomenon that occurs when the sun rises or sets in line with Toronto's major east-west streets downtown, giving photographers a great opportunity to capture the sun as it perches on the horizon between the canyon walls of buildings on either side of the street. 

Photo: By Sevtibidou (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Although Torontohenge technically falls on the dates given below for 2016, great photos can be taken for about a week before the August and October dates and a week after the February and April dates as the sun hovers directly above the street.  Not great for driving, but quite a sight just the same.

The Torontohenge dates for 2016 are:

February 16	Sunset    -   5:48 PM
April 19	Sunrise   -   6:27 AM
August 23	Sunrise   -   6:32 AM
October 25	Sunset    -   6:18 PM

Cheers, Ralph