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Spring and autumn are both short and highly variable. Edmonton's growing season is from May 9 to September 22; [4] [11] Edmonton averages 135–140 frost-free days a year. [4] [12] At the summer solstice, Edmonton receives 17 hours and three minutes of daylight, with an hour and 46 minutes of civil twilight. [13]
The Vermilion Lakes are a series of lakes located immediately west of Banff, Alberta, in the Canadian Rocky Mountains. The three lakes are formed in the Bow River valley, in the Banff National Park, at the foot of Mount Norquay. They are located between the Trans-Canada Highway and the Canadian Pacific Railway tracks.
Alberta has six specialized municipalities, which are recognized as census subdivisions by Statistics Canada. [ 2 ] [ 13 ] In the 2021 Census of Population, they had a cumulative population of 202,461, a total land area of 155,463.32 km 2 (60,024.72 sq mi). [ 3 ]
The sunrise equation or sunset equation can be used to derive the time of sunrise or sunset for any solar declination and latitude in terms of local solar time when ...
The solar zenith angle is the zenith angle of the sun, i.e., the angle between the sun’s rays and the vertical direction.It is the complement to the solar altitude or solar elevation, which is the altitude angle or elevation angle between the sun’s rays and a horizontal plane.
Central Alberta is bordered by the Canadian Rockies in the west, Southern Alberta and the Calgary Region to the south, Saskatchewan to the east and Northern Alberta to the north. It completely surrounds the Edmonton Capital Region and contains the central part of the heavily populated Calgary-Edmonton Corridor .
The Muttart Conservatory (/ m ə ˈ t ɑːr t /) is a botanical garden in the North Saskatchewan river valley, across from the downtown core in Edmonton, Alberta, Canada.One of the best-known landmarks of Edmonton, the conservatory consists of three city-operated greenhouses, public gardens, as well as four feature pyramids for display of plant species found across three biomes, with the ...
Twilight occurs according to the solar elevation angle θ s, which is the position of the geometric center of the Sun relative to the horizon. There are three established and widely accepted subcategories of twilight: civil twilight (nearest the horizon), nautical twilight, and astronomical twilight (farthest from the horizon).