List of stellar angular diameters
Following is a list of stellar angular diameters. In astronomy the sizes of stars are often given in terms of their angular diameter as seen from Earth, rather than their actual sizes. Since these angular diameters are typically small, it is common to present them in arcseconds.
|R Doradus||0.054" ± 0.005" (1250 nm) 
|Betelgeuse||0.054" (720 nm) 
0.265" ± 0.005" (400 nm) 
|Alpha Arietis||K2III||65.9 ly||0.00699||14.8|
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