Home > Comet, Ephemeris Program > 10/29/2013 – Ephemeris – Comet ISON 30 days before perihelion

10/29/2013 – Ephemeris – Comet ISON 30 days before perihelion

October 28, 2013

Ephemeris for Tuesday, October 29th.  The sun will rise at 8:16.  It’ll be up for 10 hours and 18 minutes, setting at 6:35.   The moon, 3 days past last quarter, will rise at 3:56 tomorrow morning.

In 30 days Comet ISON will meet its date with the sun.  November 28th, Thanksgiving day Comet ISON will whip around the sun, and to us will seem to be sent at a near 90 degree angle from heading eastward to heading nearly due northward.  That’s an illusion because we, on the earth will be moving, in effect under it.  The closest Comet ISON will get to us is just under 40 million miles on December 26th and 27th.  The morning waning crescent is no longer affecting the visibility of the comet, so barring clouds, it should be visible in dark skies in small telescopes.  The website gtastro.org now has lots of information on the comet and where you can find more from good sources.  I’ll tell you more on Friday.

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

Addendum

This is the major document from the Gtastro website cited above: The article from the GTAS Stellar Sentinel plus extra charts and information for viewing Comet ISON at perihelion (closest approach to the sun) safely online.

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  1. October 30, 2013 at 8:16 pm

    In 28 of October raund 17:00 I saw a object like comet, actually my dother saw it, it was lying about 3 to 7 minutes first I thought ISON flying by, could it be?

  2. October 30, 2013 at 8:19 pm

    Dzintars :
    In 28 of October raund 17:00 in Belgium city Mol I saw a object like comet, actually my dother saw it, it was lying about 3 to 7 minutes first I thought ISON flying by, could it be?

    • October 30, 2013 at 9:33 pm

      No, it wasn’t Comet ISON. The comet is at interplanetary distances and moves slowly against the stars like planets do. Also Comet ISON is a morning object, visible only before sunrise, and only in telescopes right now.
      17:00 or 5 p.m. here in Michigan, US is still a couple hours before sunset. If the sun was set for your location, the object may have been a bright meteor that had no relation to Comet ISON. The comet is nowhere near us.
      I hope that answers your question.

      • October 31, 2013 at 4:49 am

        Yes for comet it was pretty fast, probably it was some kind a meteor witch from my view didn`t enterd the atmosphere, sorry for my english

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