Home > Comet, Ephemeris Program > 11/04/2013 – Ephemeris – Comet ISON shares the morning sky with Encke’s Comet

11/04/2013 – Ephemeris – Comet ISON shares the morning sky with Encke’s Comet

November 4, 2013

Ephemeris for Monday, November 4th.  The sun will rise at 7:24.  It’ll be up for 10 hours and 2 minutes, setting at 5:26.   The moon, 1 day past new, will set at 6:28 this evening.

Yesterday was the peak of the Taurid meteor shower, it was lost in all the other news we had last week.  But the source of the Taurid meteor shower is Encke’s Comet.  Next to Halley’s Comet it’s that oldest known periodic comet with the designation 2P (Encke).  It has the shortest orbit of any known comet of 3.3 years.  It also happens that Encke is in the same part of the sky as Comet ISON, and currently outshines it, and if the magnitude projections are correct, and they often aren’t, especially for ISON, will outshine Comet ISON until November 19th, 9 days before ISON’s closest approach to the sun.  Both comets will seem to converge for a while.  In the last photograph I saw Encke didn’t have a tail, but had a large coma or head and a bright nuclear region.

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

Addendum

ISON and Encke

Mars, Comets ISON and Encke on the morning sky for the first part of November 2013. Created using Cartes du Ciel.  Click on image to enlarge.

The positions every three days also show the predicted magnitudes of the comets.  ISON appears to be a magnitude dimmer.  There is also a rogue position of the moon in the image.  I had to allow it to display Mars’ positions.

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