Home > Comet, Ephemeris Program, Mars > 10/16/2014 – Ephemeris – Comet Siding Spring will buzz Mars this Sunday

10/16/2014 – Ephemeris – Comet Siding Spring will buzz Mars this Sunday

October 16, 2014

Ephemeris for Thursday, October 16th.  The sun will rise at 7:59.  It’ll be up for 10 hours and 57 minutes, setting at 6:56.   The moon, 1 day past last quarter, will rise at 1:50 tomorrow morning.

Sunday afternoon our time the comet C/2013 A1 also known a Siding Spring will pass 86 thousand miles (140 thousand km) from Mars.  The three NASA Mars satellites, Mars Odyssey, Mars Reconnaissance Orbiter and Maven plus the two rovers Opportunity and Curiosity; the European Mars Express and the latest to arrive, India’s Mars Orbital Mission or MOM will all be studying the comet.  Protection of the satellites is key.  The satellite’s orbits have all been phased so as to be behind the planet from the expected possible debris of the comet when Mars passes its closest to the comet’s orbit 101 minutes after the comet itself passes.  Early next week we may have some spectacular photos of Comet Siding Spring.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.

Addendum

Siding Springs Orbit

Two views of Comet Siding Springs orbit past Mars. Credit: NASA.

Planned science observations

Planned science observations of Comet Siding Spring by NASA spacecraft and rovers at Mars. Credit: NASA.

Siding Spring Links:

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