|These are my daughters Sunny and Halo. Sunny is friendly and bright. Halo is a golden gal who never gets into trouble.|
Sunny is named after the SUN and for her warm and bright personality.
Halo's name is taken from the ring that surrounds the sun.
The Sun is a variable star, meaning that its activity varies over time. The changing degree of activity is due to two factors: its rotation and its convection processes, which transport hot gas from the solar interior to the surface. The interaction of these two motions-rotation and convection-generates powerful magnetic fields and influences the cyclic activity level demonstrated by the ebb and flow of sunspots and solar flares.
Additionally, activity in the Sun's
corona-the white "halo" of gas seen during total eclipses-causes ejection at
very high velocities of a hot electrified gas called the solar wind, which courses
throughout the solar system transporting energy to Earth and all the other planets. Its
interaction with Earth's magnetic fields causes a whole range of effects, such as the
aurora magnetic storms, disruption of radio communications, and power surges
in transmission lines.
|Ulysses became the
first spacecraft to explore the Sun from polar orbit.
sun - ('sęn) - the shining celestial body around which the earth and other planets revolve and from which they receive light and heat.
halo - ('hä-lõ) - a circle of ice that surrounds the sun or moon. When the light shines through the ice, you can see a halo, a warning sign that snow or rain is coming.
Contents CopyrightŠ Dr. Julia Spencer, Ph.D.1987-2012
(unless otherwise noted)
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