Venus dominates the evening sky throughout August, but early risers have a special treat too, as Mercury and Jupiter draw together in a beautiful dawn conjunction around mid-month.
From our vantage point on Earth, Venus reaches the end of its tether to the sun on the evening of Aug. 15, when it is at greatest elongation 46 degrees to the east of the sun. And yet, paradoxically, instead of appearing high up in the west, Venus is getting noticeably lower to the west-southwest horizon as the month progresses. This is because its declination in the sky is taking it well to the south of the sun. In fact, Venus's greatest elongation coincides with the time that it sets right at the end of evening twilight.
