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The size of solid bodies does not include an object's atmosphere. For example, Titan looks bigger than Ganymede, but its solid body is smaller. For the giant planets , the "radius" is defined as the distance from the center at which the atmosphere reaches 1 bar of atmospheric pressure.
It's a mind-blowing sequence. The viewer is invited to reflect on stars so large their size strains the limits of comprehension. It's a high resolution, accurate and thought-provoking image - certainly a worthy candidate. Articles this image appears in Star#Characteristics, Orders_of_magnitude_(length)#Astronomical Creator Dave Jarvis
It's a mind-blowing sequence. The viewer is invited to reflect on stars so large their size strains the limits of comprehension. Creator Dave Jarvis Nominated by StevenJohnston 21:12, 10 February 2009 (UTC) Comments. In general, it really is a nice, easy to understand comparison, but I have three concerns.
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The following well-known stars are listed for the purpose of comparison. Antares (α Scorpii A) 680 [68] AD Fourteenth brightest star in the night sky. [69] Widely recognised as being among the largest known stars. [19] Betelgeuse (α Orionis) 640, [70] 764 +116 −62, [71] 782 ± 55 [72] AD & SEIS Tenth brightest star in the night sky. [69]