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www.reference.com/science/circle-illumination-829bc2149e2d7b96

The circle of illumination is the line that separates the Earth to create equal parts of day and night. It passes through the poles and allows the entire Earth to have an equal amount of time spent during the daylight and nighttime hours. The circle of illumination divides the Earth in exactly half.

earthonlinemedia.com/ipg/outlines/lecture_earth_sun_relations.html

The circle of illumination is the division between day and night over the earth. The circle of illumination bisects (cuts in half) all latitudes on the spring and autumnal equinoxes. At this time, all places have equal day length (12 hours).

www.quora.com/What-is-the-circle-of-illumination

The field of view of a telescope is always limited by it’s objective or sometimes a field stop that restricts the FOV to an area with the sharpest image. The circle of illumination is the projection of the telescopes field of view at prime focus. ...

encyclopedia2.thefreedictionary.com/circle+of+illumination

833[degrees] beyond the circle of illumination (which is the great circle obtained by the intersection of the earth with the xz plane) and, thus, it is daybreak at T and sunset at S, since the earth turns counterclockwise when viewed from above the North Pole.

answers.yahoo.com/question/index?qid=20091213093617AAN51Sf

The North Pole is tilted 23.5 degrees away from the Sun relative to the circle of illumination during the December solstice. On this date, all places above a latitude of 66.5 degrees N are now in darkness, while locations below a latitude of 66.5 degrees S receive 24 hours of daylight.

quizlet.com/28430709/geo-bio-flash-cards

geo bio. STUDY. PLAY. what explains the seasonal distribution. shape of earth, orbit of earth around the sun, effect of its tilt on axis. solar insolation. incoming solar radiation. when is earth farthest and closest to the sun. farthest- july first ... circle of illumination in relation to the poles.

mysticalchrist.org/2015/06/21/the-circle-of-illumination

The Circle of Illumination, along with the tilt of the Earth on its axis, forms the geometry of the seasons. It is also the basis of the symbol of the circle with a dot in the center, the symbol we commonly use for God. In a universe where everything tends to coagulate into a sphere, the circle seems the logical choice. Meditation:

www.answers.com/Q/What_is_the_maximum_latitude_of_the_circle_of_illumination...

The circle of illumination always includes 180 degrees of latitude (and 180 degrees of longitude). Considering latitude . . . whatever amount of latitude falls outside of the circle because of

www.youtube.com/watch?v=FgXZReDcpuk

In this Video, the Learner learns the Circle of Illumination with reference to CBSE Class 6 Geography. The circle of illumination is the department between day and night time over the earth.

faculty.kutztown.edu/courtney/blackboard/Physical/21Seasons/seasons.html

The circle of illumination is offset once again this time making the day short and the night long in the Northern Hemisphere. This is the Northern Hemisphere's Winter Solstice. Do you see that the rule regarding the location of the subsolar point holds.