December 19, 20, and 21, 2021: The bright moon leading up to the winter solstice appears in the western sky before sunrise in front of Gemini.
Taurus
2021, December 6, Aldebaran Rises at Sundown
December 6, 2021: Aldebaran rises at sunset. As the brilliant planet Venus and the crescent moon group in the southwest, Winter’s stars begin to crawl across the eastern horizon
2021, November 19-21: Morning Moon with Bull
November 19-21, 2021: The bright morning moon is in front of the stars of Taurus in the western sky.
2021, October 25: Caught Between the Horns
October 25, 2021: This morning the bright gibbous moon seems to be caught between the horns of Taurus. Mercury is making its best morning appearance. The planet pack – Venus, Jupiter, and Saturn are in the evening sky.
2021, July 1- 7, Morning Moon
July 1 – July 7, 2021, the waning crescent appears in the eastern sky. Early in the viewing period, the moon is among the dim stars of Pisces. As the week progresses, the moon wanes and moves farther eastward, appearing near Taurus.
2021, May 29: Evening Star Venus, Mercury, Mars
May 29, 2021: Three planets are in the evening sky. Brilliant Venus is low in the west-northwest after sunset. Speedy Mercury is leaving the sky after its best evening performance of the year. It is below Venus. Mars is higher in the western sky, in Gemini to the lower left of Pollux.
2021, May 28: Close Venus – Mercury Conjunction
May 28, 2021: This evening Mercury passes brilliant Venus for the second of three conjunctions during this evening apparition of the second planet from the sun. Use a binocular about 45 minutes after sunset to see the speedy planet 0.4° to the lower left of Venus. This is the closest visible conjunction until 2033.
2021, May 24: Planets in a Plane
May 24, 2021: Morning planets Jupiter and Saturn are in the southeast before sunrise. In the evening sky, brilliant Evening Star Venus, Mercury, and Mars line up along the solar system’s plane. The bright moon is in the southeast near Zubenelgenubi, “the southern claw.”
2021, May 3: Evening Star Venus, Mercury, Mars
May 3, 2021: Three bright planets are visible after sunset. Brilliant Venus is low in the west-northwest, with Mercury to its upper left. As the sky darkens further a binocular reveals that speedy Mercury is to the lower left of the Pleiades star cluster. Mars is visible in a darker sky in Gemini, below Castor and Pollux.
2021, May 2: Brilliant Evening Star Venus, Mercury, Mars
May 2, 2021: Five bright planets are visible during a 24-hour interval. This evening, brilliant Evening Star Venus is in the west-northwest during bright twilight. Mercury is above Venus. Mercury is 3.4° to the lower left of the Pleaides star cluster. Mars is higher in the west when night falls.