Editing Solar radius (section)

==Measurements==
[[File:Solar evolution (English).svg|right|thumb|upright=1.4|Evolution of the [[solar luminosity]], radius and [[effective temperature]] compared to the present-day Sun. After Ribas (2009)<ref>{{cite journal|last=Ribas|first=Ignasi|title=The Sun and Stars as the Primary Energy Input in Planetary Atmospheres|journal=Proceedings of the International Astronomical Union|volume=5|issue=S264 [Solar and Stellar Variability: Impact on Earth and Planets]| pages=3–18|date=August 2009|doi= 10.1017/S1743921309992298|bibcode= 2010IAUS..264....3R|arxiv= 0911.4872| s2cid=119107400| url=https://www.cambridge.org/core/services/aop-cambridge-core/content/view/293C0314C44A1A4AAF8175A3C288B50B/S1743921309992298a.pdf/sun_and_stars_as_the_primary_energy_input_in_planetary_atmospheres.pdf }}</ref>]]
The uncrewed [[Solar and Heliospheric Observatory|SOHO]] spacecraft was used to measure the radius of the Sun by timing transits of Mercury across the surface during 2003 and 2006. The result was a measured radius of {{Convert|696342|+/-|65|km|mi|abbr=off}}.<ref name=arxiv1203_4898>{{citation | first1=Marcelo | last1=Emilio | first2=Jeff R. | last2=Kuhn | first3=Rock I. | last3=Bush | first4=Isabelle F. | last4=Scholl | title=Measuring the Solar Radius from Space during the 2003 and 2006 Mercury Transits  | arxiv=1203.4898 |bibcode = 2012ApJ...750..135E |doi = 10.1088/0004-637X/750/2/135 | volume=750 | issue=2 | journal=The Astrophysical Journal | pages=135| year=2012 | s2cid=119255559 }}</ref>

Haberreiter, Schmutz & Kosovichev (2008)<ref name=Hab2008>{{citation | first1 = M | last1=Haberreiter | first2=W | last2=Schmutz | first3=A.G. | last3=Kosovichev | title=Solving the Discrepancy between the Seismic and Photospheric Solar Radius | journal=Astrophysical Journal | volume=675 | issue=1 | pages=L53–L56 | doi=10.1086/529492 | bibcode=2008ApJ...675L..53H| arxiv=0711.2392 | year=2008 | s2cid=14584860 }}</ref> determined the radius corresponding to the solar photosphere to be {{Convert|695660|+/-|140|km|mi|abbr=off}}. This new value is consistent with helioseismic estimates; the same study showed that previous estimates using inflection point methods had been overestimated by approximately {{cvt|300|km|mi}}.