a solar plage is a ?
an arching column of gas suspended over a sunspot group is calle
astronomers have compared the relative abundances of different i
compared with photosphere, the solar chromosphere is?
coronal holes are thought to be the source of?
how would you describe the sun's rotation?
one method that has been used successfully in recent times to in
spicules on the solar surface are?
sunspots appear dark because?
sunspots are?
the average sunspot group on the solar surface will last for abo
the bright x-rays image obtained of the solar corona when the su
the differential rotation of the sun causes the magnetic fields
the equatorial regions of the sun are seen to rotate with an app
the gas motions within granules on the solar surface are?
the granular appearance of the surface of the sun is evidence of
the granulation observed on the photoshere of the sun appears to
the heilosphere is the?
the major that distinguishes a sunspot from other regions on the
the rotation of the sun is?
the solar wind almost entirely ionized gas
the spectrum of the solar corona reveals emission lines that ori
the umbra of a sunspot is about 1500 k cooler than the surroundi
to what does the symbol fe xiv refer?
two pairs of associated sunspots appear on the visible disk of t
what causes plages?
what causes sunspots?
what is a filament on the sun?
what is a prominence on the sun?
what is a typical magnetic field inside a sunspot?
what is helioseismology?
what is plasma?
what is solar wind?
what is surprising about the atmopshere of the sun?
what is the cause of the sunspot cycle on the sun?
what is the explanation for the bright cells photospheric gases
what is the source of the x-rays emitted by the solar corona?
what is the structure of a typical large sunspot?
what is the sun's photosphere?
what is the temperature of the solar corona?
what measurements first showed the 5-minutes oscillations of the
where is the chromosphere on the sun?
where is the coolest region in the sun
where on the sun do solar flares occur?
where would you expect to find spicules?
which of the following events is not a consequence of a coronal
which of the following pheomena is not a characteristic of a pea
which one of the following statements about sunspots is not true
which recently discovered fact about the sun might have some bea
why is the solar corona so much hotter than the photosphere?