2017, December 17: Jupiter, Mercury and Mars

Mercury joins bright Morning Star Jupiter and Mars during this morning’s twilight.  This speedy planet is approaching its greatest western (morning) elongation in January 1.  This morning it is 28 degrees to the Giant Planet’s lower left.  Mercury is the brightest “star” near the horizon shining from the approaching sunrise.  It is easily visible without binoculars or a telescope.  Find a clear horizon to see it.

The articles that follow provide details about the planets visible without optical assistance (binoculars or telescope):

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