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The solid angle of the Sun (as seen from Earth) is:
pi * R_SUN² / d²
where pi*R_SUN² is the area of the visible disk of the Sun
and d² = 1UA (in meters) for the Earth
With my values I got ~6.79427e-05 sr
But I read on Wikipedia 6.807e-05 sr
Anonymous
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At what angle will the sun's rays most directly hit the earth?
90 degrees
Which lunar phase would be observed from the Earth if the moon were at a 90 and deg angle with the earth and sun?
The New Moon
When is the angle between earth's rotation axis and the sun the largest?
December or December solstice
What is largely made of gas the Earth Sun or The Moon?
The Earth and the Moon are not made mostly of gas but the Sun is.
What is the process that causes the moon to change phases?
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Because Venus orbits closer to the Sun than the Earth, the angle between Venus and the Sun can never reach 180 degrees (the Sun and Venus cannot be directly opposite each other, or in "Opposition", as viewed from Earth). Assuming circular orbits for Earth and Venus of 149.6 million km and 108.2 million km respectively, and that the Earth and Venus orbit in the same plane, one can use trigonometry to find that the maximum angular separation between Venus and the Sun is approximately 46.3 degrees.
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it affects the angle at which the sun rays hit the earth
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an angle (that can be on the earth) at which an angle could be formed by the sun.
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It is the angle at which the sun's rays hit the earth
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The angle of the earth's tilt from the sun causes the Earth's seasons.
How does the angle of the sun hitting the earth affect the temperature of the earth?
Sunlight is at its strongest when it is at a perpendicular angle; at oblique angles it is weaker.
What is the position of the earth moon and sun during spring tides?
The Earth, Sun, and Moon are aligned in a straight line during spring tides.
How are ratios used in astronomy?
The parsec is a unit of distance equivalent to about 3.26 light years or 31 trillion kilometres. It is used to measure the distances to stars, with kilo and mega parsecs being used for objects further away. A parsec is based on the tangent ratio. The angle in question is that subtended at the distant object by the lines joining it to the earth and the sun, and the opposite side is the earth-sun distance - 1 astronomical unit (AU). The result is the distance of the object from the sun.
How the placement of the sun's light on the earth causes seasons?
we get seasons because the earth is tilted on it s axis in relation to the sun thus as it goes around the sun the angle at which the light strikes the earth changes and the greater the angle the less heat is absorbed by the earth causing the seasons
What angle is the earth in the winter?
The Earth is at the same angle, summer or winter. In winter the nearest pole to you is facing slightly away from the sun as the Earth moves in its orbit, in summer your nearest pole faces slightly towards the sun.
What is the angle at which the sun's rays strike the surface of Earth in the tropics?
LEss than a 45 degree angle
What does the phases of the moon you see depends on?
The phases of the moon are dependant on the relative positions of the sun, moon and earth. It's the angle between the view-lines to the sun and the moon, with you at the vertex of the angle. The phase of the moon you see depends on how much of the sunlit side of the moon faces earth.
