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swelzba9
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I am trying to figure out the speed of Halley's Comet in km/sec. at aphelion and perihelion... my answers just don't seem to be practical.. please help thanks...
I am using
v² = (4Π²a³) / (P²) * ((2/r) - (1/a))
where a = mean distance from the sun (semimajor axis of the ellipse)
P= sidereal period (75 years)
r = distance of the object from the Sun at a given instant
a=16.8 A.U. c=16 A.U.
"r" at perihelion = a-c "r" at aphelion = a + c
I am using
v² = (4Π²a³) / (P²) * ((2/r) - (1/a))
where a = mean distance from the sun (semimajor axis of the ellipse)
P= sidereal period (75 years)
r = distance of the object from the Sun at a given instant
a=16.8 A.U. c=16 A.U.
"r" at perihelion = a-c "r" at aphelion = a + c