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In solar physics, Spörer's law is an empirical law for the variation of heliographic latitudes at which solar active regions form during a solar cycle. [1] It was discovered by the English astronomer Richard Christopher Carrington around 1861. [2] Carrington's work was refined by the German astronomer Gustav Spörer.
On 1 September 1859, Richard C. Carrington and separately R. Hodgson first observed a solar flare. [52] Carrington and Gustav Spörer discovered that the Sun exhibits differential rotation, and that the outer layer must be fluid. [52] In 1907–08, George Ellery Hale uncovered the Sun's magnetic cycle and the magnetic nature of sunspots. Hale ...
At the equator, the solar rotation period is 24.47 days. This is called the sidereal rotation period, and should not be confused with the synodic rotation period of 26.24 days, which is the time for a fixed feature on the Sun to rotate to the same apparent position as viewed from Earth (the Earth's orbital rotation is in the same direction as the Sun's rotation).
This means that the acceleration vector ¨ of any planet obeying Kepler's first and second law satisfies the inverse square law ¨ = ^ where = is a constant, and ^ is the unit vector pointing from the Sun towards the planet, and is the distance between the planet and the Sun.
Carrington poked the Indiana Fever star in the eye in the first quarter of the Connecticut Sun’s 93-69 win in Game 1 of their opening-round playoff series on Sunday. Though Clark finished the ...
Bill Maher Says ‘I May Quit’ HBO’s ‘Real Time’ Because ‘I Don’t Want to Do’ More Donald Trump Coverage
where the angular rotation of the frame is expressed by the vector Ω pointing in the direction of the axis of rotation, and with magnitude equal to the angular rate of rotation Ω, symbol × denotes the vector cross product, vector x B locates the body and vector v B is the velocity of the body according to a rotating observer (different from ...
A horrifying video shows a masked man attempting to rip a six-year-old Hasidic Jewish boy out of the arms of his father in broad daylight as they walked down a Brooklyn sidewalk together Saturday.