PHYS 1600 Chapter Notes - Chapter 10: Chromosphere, Limb Darkening, Photosphere
21 Dec 2015
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The sun is so hot it has neither liquid nor solid matter anywhere inside it. Moving down through the sun, we continually encounter ever denser and. 10-1 the photosphere is the visible layer of the sun. Most of the visible light comes from one specific layer: photosphere, about hotter gases. Innermost of the three layers that comprise the sun"s atmosphere. Upper two layers are nearly transparent to most wavelengths of visible light, we see through them down to the photosphere photosphere. See regions of different temperatures at different depths in the. Appears darkest towards the edge (or limb) called limb darkening o. Photosphere is hottest and brightest at its base (center of the sun"s disk) Can see blotchy pattern on the photosphere called granulation. Hot gases move upward in the center of each granule and cooler gases cascade down around edges. 10-2 the chromosphere is characterized by spikes of gas called spicules.
