On March 1 and 2, 2020 – in the west, after sunset – the moon shines in front of the constellation Taurus the Bull. Taurus has two major signposts: the ruddy star Aldebaran, marking the Eye of the Bull, and the Pleiades star cluster, which is shaped like a tiny, misty dipper of stars. Also on these evenings, the moon’s lit side points directly at the dazzling planet Venus, which sits closer to the sunset horizon.
Given clear skies, you’ll have no trouble seeing the moon and Venus, which rank as the second-brightest and third-brightest celestial objects, respectively, after the sun. You’ll need a bit more darkness to see Aldebaran and the Pleiades on the great dome of the sky.
The Pleiades is an actual cluster of stars, sibling stars born from the same cloud of dust and gas.
Aldebaran, the brightest star in Taurus, sits atop another cluster of stars, a V-shaped assemblage that represents the Bull’s face. The stars in this V, with the exception of Aldebaran, are members of the cluster called the Hyades.
Because the Hyades are closer to us than the Pleiades, this beautiful cluster of stars appears more spread out than the compact Pleiades cluster.
As darkness falls on March 2, 2020, the moon will be at or near its half-lit first quarter phase. Because the first quarter moon is 90 degrees east of the sun, the first quarter moon shows you where the sun will reside in front of Taurus some three months hence, or in early June 2020.
Click on Heavens-Above to know the moon’s present position in front of the constellations of the zodiac.
Now let’s focus on Venus, which now shines in front of the constellation Pisces the Fish. This whole next month, watch for Venus to travel upward, toward the constellation Taurus. In the meantime, Taurus will be sinking closer to the setting sun day by day.
Venus will swing some 2.5 degrees north of the faint planet Uranus (in the constellation Aries) to stage a conjunction on March 9. However, you’ll probably need an optical aid to view Uranus, the seventh planet outward from the sun. On a dark night, people with good vision can see Uranus as a faint speck of light.
On March 24, 2020, Venus will reach its greatest elongation from the sun. After that, Venus will slowly fall sunward, but will remain an evening “star” for a few more months. Although Venus will be sinking downward relative to the setting sun, Venus will still be moving eastward relative to the backdrop stars of the zodiac. A little over a month from now – April 3, 2020 – Venus will couple up with the Pleiades cluster, and by late April/early May 2020, Venus will be shining at its brightest best in the evening sky.
Venus will begin its retrograde (westward) motion in front of the background stars on May 13, 2020, and will transition out of the evening sky and into the morning sky in early June 2020.
Bottom line: On March 1 and 2, 2020, the waxing moon is near the bright red star Aldebaran in Taurus the Bull and the Pleiades star cluster. Dazzling Venus is nearby.
Bruce McClure has served as lead writer for EarthSky's popular Tonight pages since 2004. He's a sundial aficionado, whose love for the heavens has taken him to Lake Titicaca in Bolivia and sailing in the North Atlantic, where he earned his celestial navigation certificate through the School of Ocean Sailing and Navigation. He also writes and hosts public astronomy programs and planetarium programs in and around his home in upstate New York.