Home > Comet, Ephemeris Program > 11/26/2015 – Ephemeris – A new comet is becoming visible for binoculars or telescopes

11/26/2015 – Ephemeris – A new comet is becoming visible for binoculars or telescopes

November 26, 2015

Happy Thanksgiving, this is Bob Moler with Ephemeris for Thursday, November 26th.  The Sun will rise at 7:53.  It’ll be up for 9 hours and 12 minutes, setting at 5:06.   The Moon, 1 day past full, will rise at 6:16 this evening.

There is a new comet becoming visible in the morning sky.  It’s designation is C/2013 US10 (Catalina).  While Catalina may remind you of an island off the coast of California,  the comet was found by a NASA program based in the Catalina Mountains north of Tucson, Arizona that was looking for near Earth asteroids.  Comet Catalina was discovered on Halloween night 2013 as a very faint object.  As it approached the Sun it’s hyperbolic orbit took it into the southern hemisphere skies.  It reached its closest point to the sun, called perihelion on November 15th, 11 days ago and is now climbing into our northern morning skies.  By mid January it will be far enough north to be visible all night.  The downside however is that it isn’t very bright.

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

Addendum

Comet Catalina's Orbit

Comet C/2013 US10 (Catalina) at its closest approach to the Earth on January 17, 2016 of 0.725 AU, 67 million miles or 108 million kilometers. Credit NASA/JPL.

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