Uranus No Longer Backing Up

   Well that’s a relief!

July 22nd to December 22nd :  Uranus at 30-day intervals

July 22nd to December 22nd : Uranus at 30-day intervals

   Monday December 22nd the outer planet Uranus ends its retrograde motion and resumes its eastward, or direct motion. Uranus begun this current retrograde motion last July 22nd. Retrograde motion is an apparent motion to the west that any outer planet relative to the Earth appears to do whenever the faster moving Earth passes by. Sort of like passing a car on the highway. You know both vehicles are moving in the same direction but from your perspective it could appear that the other car is moving backward as you go by. Regardless, retrograde motion for the outer planets happens at regular intervals as the Earth pass each one. It is always more than a year and always a little further to the east when the retrograde motion begins each time. This is because the outer planet is also moving eastward.

Caution: Objects viewed with an optical aid are further than they appear.
   Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.

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