June 13, 2021: After sunset, look for the thin crescent moon near Mars. The lunar sliver is also to the upper left of the star Pollux.
Pollux
2021, June 23-30: Evening Star Venus, Mars
June 23 – 30, 2021: Venus is quickly catching Mars in the western sky after sun. Venus passes the Red Planet next month.
2021, June 15-22: Evening Star Venus, Mars
June 15 – June 22, 2021: Brilliant Evening Star Venus shines in the west-northwest after sunset. It continues to close the distance to Mars. Venus shines from Gemini, beneath Castor and Pollux. Mars marches eastward in Cancer, approaching the Beehive star cluster.
2021, June 23: Mars in the Beehive
2021, June 23: Through a binocular, Mars is in front of the Beehive star cluster this evening. The stars Gamma Cancri (γ Cnc) and Delta Cancri (δ Cnc) are in the same binocular field of view as Mars and the cluster.
2021, June 11 – 14, Crescent Moon, Evening Planets
June 11 – 14, 2021: After the solar eclipse, the crescent moon returns to the western sky after sunset appearing with Evening Star Venus on June 11. Each evening the crescent waxes and appears higher in the sky. The crescent is near Mars on June 13.
2021, June 1 – June 7: Evening Star Venus and Mars
June 1 – June 7, 2021: Evening Star Venus shines in the western sky after sunset. Mars is over 20° to the upper left of Venus during this week. Venus cuts the gap to Mars during the month. Use a binocular to watch Venus pass a star cluster and Mars move eastward in the Pollux region.
2021, May 30: Evening Star Venus, Mercury, Mars
May 30, 2021: Brilliant Evening Star shines from low in the west-northwest after sunset. Through a binocular locate Mercury, 2.5° to the lower right of Venus. Mercury is quickly departing the evening sky. Mars is higher in the sky, 5.3° to the lower left of Pollux.
2021, May 27: Impending Venus – Mercury Conjunction, Sirius Setting
May 27, 2021: Mercury approaches Venus the evening before a close conjunction of the two planets. This is the closest visible grouping of the two planets until 2033, although over two dozen groupings occur during the interim. Tonight is Sirius’ Cosmic Setting. It sets at sunset. The moon is visible low in the southeast at three hours after sunset.
2021, May 23: Planet Parade Marches On
May 23, 2021: Five bright planets parade across the sky. Jupiter and Saturn are visible before sunrise in the southeastern sky. The star Fomalhaut is becoming visible below bright Jupiter and near the horizon. After sundown, Evening Star Venus, Mercury, and Mars are in the western sky. The bright moon is in the southeastern sky during the nighttime hours.
2021, May 22: Parading Five Planets
May 22, 2021: Five planets parade across the sky. Jupiter and Saturn are in the southeast before sunrise. Evening Star Venus, Mercury and Mars are in the western sky after sunset. A bright moon is in the southeastern sky.