Both perihelion and aphelion distances can be computed from semi.-major axis a and eccentricity e of Mars elliptic orbit. They are a(1 – e) and a(1 + e)
a = 1.52 AU and e = 0.09. So, Rounded to three significant digits (sd) perihelion = 1.38 AU and aphelion = 1.66 AU, nearly. Distance unit AU = ‘a’ for Earth. For more sd in the values, ‘a’ and ‘e’ for Mars should be in that many or more sd..
Both perihelion and aphelion distances can be computed from semi.-major axis a and eccentricity e of Mars elliptic orbit. They are a(1 – e) and a(1 + e)
a = 1.52 AU and e = 0.09. So, Rounded to three significant digits (sd) perihelion = 1.38 AU and aphelion = 1.66 AU, nearly. Distance unit AU = ‘a’ for Earth. For more sd in the values, ‘a’ and ‘e’ for Mars should be in that many or more sd..
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