[DOC] [TLE] Sun - Wikipedia [PAR] The Sun is the star at the center of the Solar System. It is a nearly perfect sphere 
of hot plasma, .... Solar ultraviolet radiation ionizes Earth's dayside upper 
atmosphere, .... By contrast, the Sun's surface temperature is approximately 5,800 
K. Recent .... In the upper part of the chromosphere helium becomes partially 
ionized. [DOC] [TLE] class notes and Qs: ELEM ASTRONOMY Flash Cards: Koofers [PAR] Flash cards for ASTR 152 - ELEM ASTRONOMY with Wallingford at Cal State-
Northridge (CSUN). [DOC] [TLE] Chapter 2. The Sun's Energy - Power From The Sun [PAR] The sun, our singular source of renewable energy, sits at the center of the .... The 
radiation intensity on the surface of the sun is approximately 6.33  107 W/m2. ... 
the sun's energy comes to us at wavelengths in the visible spectrum, (nominally 
..... of a glass sphere that focuses the direct solar radiation and burns a trace on a
... [DOC] [TLE] Chapter 16 [PAR] Explain how observations of the Sun's core challenge our present ... At still 
greater distances, the corona turns into the solar wind, which flows away from the 
Sun and permeates ... The term solar interior is often used to include both the 
radiation and ... we can determine the total rate at which energy leaves the Sun's 
surface. [DOC] [TLE] High School Earth Science/The Sun - Wikibooks, open books for an ... [PAR] Consider the Earth, the Moon, and all the other planets in our solar system. Think 
about ... The Sun is a sphere, but unlike the Earth and the Moon, is not solid. ... 
The photosphere is the visible surface of the Sun (Figure 24.18). ... In the Sun's 
core, nuclear fusion reactions generate energy by converting hydrogen to helium. [DOC] [TLE] Our Star [PAR] Our Star. 10.1 A Closer Look at the Sun. . Why does the Sun shine? ... starour 
Sunis visible only in the daytime. .... Sun become hot enough for fusion to 
begin in the first place? .... sunspots, which appear as dark splotches on the 
Sun's surface, can be. 4. 1. 2 ... sphere that radiates most of the Sun's ultraviolet 
radiation. [DOC] [TLE] NASA's Cosmicopia -- Ask Us -- Sun [PAR] Jun 18, 2012 ... How Long for the Sun's Heat to Reach Earth? ... What is the force of gravity at the 
surface of the Sun, and what would a 100 pound person weigh on the Sun? ... 
One solar mass is just the mass of our Sun, 2 x 1030 kg. .... converted to helium, 
and the Sun will start burning helium, and become a red giant. [DOC] [TLE] (Background, above) This spectacular image of the Sun was made ... [PAR] Explain how observations of the Sun's core challenge our present .... we can 
determine the total rate at which energy leaves the Sun's surface. ... sphere's 
surface area by the solar constant, we can measure the Sun's .... density is so low 
that the gas becomes transparent once again, and radiation once again becomes 
the. [DOC] [TLE] Astronomy Answers: AstronomyAnswerBook: the Sun [PAR] [410] Does the Sun shine on all nine planets? .... [57] Are there solar systems 
other than our Solar System that contains the Earth, and is the .... The visible 
surface of the Sun has a temperature of on average 6000 K (6000  or ... by 
convection (through the convection zone), and leaves the surface in the form of 
radiation. [DOC] [TLE] Q & A: How long would we have if the Sun went out?  Starts With A ... [PAR] Jul 12, 2010 ... The surface of the Sun is an astounding 5,800 Kelvin, hot enough to melt (or ... 
The Sun's source of power  nuclear fusion in the core  suddenly stopped. ... 
Instead, it's ultra-high-energy gamma radiation, which will either ... Sunshine ... 
From your title, I thought you would answer the question, How

Question: The radiation that becomes our sunshine leaves the Sun's surface at this "sphere", the visible surface of the sun
Answer: the photosphere