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Venus Slides Past Regulus in a Weeklong Evening Show and Returns Near the Crescent Moon Next Week

The close July pairing highlights Venus’s steady motion against the stars and signals its descent lower in evening twilight as it moves toward August’s greatest elongation.

Overview

  • The closest pass between Venus and the star Regulus occurred on July 9 when the planet came within about one degree of the star, and the multi-night window of close proximity runs from July 7 through July 12 making the pairing still viewable on July 10.
  • Look low toward the western horizon in mid-twilight for the best view, roughly 9:45 p.m. local daylight time at mid-northern latitudes, and choose an unobstructed site for the planet and star to clear the horizon.
  • Venus outshines Regulus by a large margin — roughly 158 times brighter — so the planet will be the obvious silvery point in twilight while binoculars help bring the fainter star into view.
  • On July 17 a young waxing crescent moon about 3.5 days past new (around 17% illuminated) will sit roughly six degrees left of Venus at mid-twilight, with earthshine on the lunar dark side visible through binoculars.
  • These July displays record part of Venus’s seasonal path after superior conjunction on Jan. 6 and foreshadow its greatest elongation near Aug. 15 (about 46°), its inferior conjunction on Oct. 24, and a return as a morning object in November as the planet’s apparent elevation at sunset falls for mid-northern observers.