Solar astronomy

Solar astronomy is stellar astronomy of the Sun.

A major branch of Solar astronomy is Solar physics.

Sun size relative to its distance from Proxima Centauri

The diameter of the Sun is about 1,390,000 km, and its nearest neighboring star, Proxima Centauri, is 4.22 light years (3.99 x 10¹³ km) away. Therefore, the ratio of distance to diameter is 28,700,000 : 1, so if the Sun were one centimeter in diameter, Proxima Centauri would be 287 km away.^[1]

See also

• Timeline of solar astronomy
• Solar telescopes
• List of solar telescopes
• Coronagraph
• Helioseismology

References

External links

• http://www.cv.nrao.edu/fits/www/yp_solar.html
• http://sdo.gsfc.nasa.gov/ Solar Dynamics Observatory

v t e The Sun Internal structure Core Radiation zone Tachocline Convection zone Atmosphere Photosphere Supergranulation Granule Faculae Sunspot Chromosphere Plage Spicule Moreton wave Corona Transition region Coronal hole Coronal loop Coronal mass ejection Prominence Helmet streamer Variation Solar cycle List of solar cycles Solar maximum Solar minimum Wolf number Solar wind Flare Helioseismology Heliosphere Current sheet Termination shock Heliosheath Heliopause Bow shock Related topics Solar System Solar dynamo Solar telescope Eclipse Radiation Solar energy Solar physics Solar time Spectral class: G2V