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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).
The two most commonly used systems are the Stonyhurst and Carrington systems. They both define latitude as the angular distance from the solar equator, but differ in how they define longitude. In Stonyhurst coordinates, the longitude is fixed for an observer on Earth, and, in Carrington coordinates, the longitude is fixed for the Sun's rotation.
Carrington also determined the elements of the rotation axis of the Sun, based on sunspot motions, and his results remain in use today. Carrington rotation is a system for measuring solar longitude based on his observations of the low-latitude solar rotation rate. Carrington made the initial observations leading to the establishment of Spörer ...
Rotation period with respect to distant stars, the sidereal rotation period (compared to Earth's mean Solar days) Synodic rotation period (mean Solar day) Apparent rotational period viewed from Earth Sun [i] 25.379995 days (Carrington rotation) 35 days (high latitude) 25 d 9 h 7 m 11.6 s 35 d ~28 days (equatorial) [2] Mercury: 58.6462 days [3 ...
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 ...
Courtesy of Green Bay Packers / Delaware North. A sandwich with turkey, stuffing, and gravy is a can't-miss at the Green Bay Packers' stadium.
The Carrington Event was the most intense geomagnetic storm in recorded history, peaking on 1–2 September 1859 during solar cycle 10. It created strong auroral displays that were reported globally and caused sparking and even fires in telegraph stations. [ 1 ]
Valerie Bertinelli is embracing her body.. The Food Network alum, 64, posted a mirror selfie on Instagram while opening up about the acceptance she felt for her body despite the tough things it ...