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Unformatted text preview: W — Now try to apply the same procedure and solve all the other problems. Let
me know if you have any troubles. I will provide the results to help you to
have some reference. However, be sure that you KNOW and UNDERSTAND
how to do these problems. Similar problems will be on your exams. D. The orbit of the spacecraft about the Sun has an orbital period of 15 years 7
and an apheiion distance of 4.5 AU. What is the semi major axis of the Si 3‘ spacecraft’s orbit and its perihelion distance? , . ~. ”L iii
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Answer ____a= 6.08AU; Rp = 7.6 AU 9 iii 3 K?;'i§3 iia mg g. {5%. .i {is it} E. Suppose you received a message from aliens living on a planet orbiting a star 10
times farther away from their Sun. How much bigger! smaller would be their year?. s / 3 _, . .
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{7 1 a 3 ?’ F.How long would a radar signal take to complete a round trip between Earth and Mars when the two planets are 0.7 AU apart? ( consider the speed of radar signal to be equal with the speed of light)
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Answer _700 sec ’5 31%” a. 71 §§;g:i 7:“ “Emmew. G. An asteroid has a perihelion distance of 2.0 AU and an apheiion distance of 4.0 AU. Calculate its orbital semi major axis and its orbital period. A t .
Q ;. 3 31, i a X} {A saris: K55" “i ~ i Mi) " M " l‘” i "is i ii“ is? iii a Answer __5.19 yearsﬂ Q“ a. ﬁg 3 ﬁx} “ g; l. Ceres, one of the biggest asteroid from the Asteroid Belt has a perihelion
distance of 3.54 AU. If its orbital period is 6.6 years, calculate its apheiion 5‘ 42E
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distance. ibis? a 141:? 3%”ng W Kiwi: 3,. i211“ i l. i
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Answer Rp=3.49AU v r 53 2M» 1? i it; {ewe Rf?) ,Lm A‘s gm 3 3:3; .
J. A large coronal mass ejection was observed by SOHO as it left of the Sun. It
reached Earth roughly 36 hours later. What was its speed ? (We know the
distance from Sun to Earth) iii;
Answer 1157km/sec .. ...... _. ( .
viii? 391‘th i w. .i it ELM? Cent/L Q2? lit/l/x 1.Planet Mars’ perihelion distance from the Sun is 1.38 AU. Knowing the orbital period of Mars
is 1.88 years, calculate how far from the Sun Mars can get ( its aphelion distance) 3 ’9 Rtlzwlv 9.167
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[email protected]%\%gyl p:Lg%vaW5 ; (L38w)+ﬁ :th$9" 2. Ceres one of the biggest asteroid from the Asteroid Belt has a perihelion distance of 2. 54
AU. If its orbital period' Is 4. 6 years, calculate its aphelion distance. \l 6,6,3 P. 131.9th 52.8% I 12%: @9377) @wy ll WW“ 07% Al ORG 3. Comet HaleBopp has a perihelion distance of 0.91 AU and is moving around the Sun once
every 2380 years. Calculate how far away from the Sun this comet is traveling (the aphelion distance).
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¢§§%@I\1%Bb £266.?” AV , {0(9qu 4. The diameter of planet Mars Is 6794 km Mars Is situated at 1. 5AU from the Sun. How
0 much time Mars need to complete one full rotation around the Sun? ,
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X) l , ﬁll \(12 our 5 5. The average distance of Jupiter from the Sun is 5AU. If the eccentricity of the planet is 0.048, calculate Jupiter perihelion and aphelion distance. Lbeﬂu ...
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 Fall '12
 JulianaConstantinescu
 Astronomy

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