Lab 03_Plotting Mars's Retrograde Loop_2013.pdf - Rowan...

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Rowan Introduction to AstronomyLab 3 /Plotting Mars’s Retrograde LoopName:________________________________________________Score:__________________________Table 1 gives the positions of Mars, relative to the stars, over part of a year. The positions are listed for 10-day intervals around theecliptic. Starting with 0° at the vernal equinox, the positions are given in degrees along the ecliptic (the longitude), increasing in theeastward direction up to 360°, which marks the vernal equinox again.Table 1.Motions of MarsDateLongitude1990 Sep 0663°1990 Sep 1567°1990 Sep 2571°1990 Oct 0574°1990 Oct 1575°1990 Oct 2574°1990 Nov 0472°1990 Nov 1468°1990 Nov 2466°1990 Dec 0462°1990 Dec 1459°1990 Dec 2458°1991 Jan 0357°1991 Jan 1359°1991 Jan 2360°1991 Feb 0263°1991 Feb 1267°Using the supplied graph paper, set the longitude numbers along thehorizontalx-axis. (The origin is 0, but you can jump to 50 on thenext block and then go in increments of“1” per block from 50 to 80.) Set the dates along theverticaly-axis. Set the tic mark for every10-day interval at every other block (i.e., every two blocks).

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Term
Spring
Professor
RichardRusso
Tags
1981, 1971, 1979, 1975, 1932, 1930

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