May 16, 2021: The moon occults a star in Gemini this evening, and Mercury reaches its greatest separation from the sun. Bright Jupiter and Saturn are in the southeast before sunrise. After sunset, Evening Star Venus, Mercury, Mars, and the lunar crescent are lined up above the western horizon.
May 15, 2021: Five planets and the crescent moon are visible today. Morning Planets Jupiter and Saturn are in the southeast before sunrise. Brilliant Evening Star Venus, Mercury – on its best evening appearance of the year, Mars, and the crescent moon are in the western sky after sunset.
May 14, 2021: Five planets are on parade. Bright Jupiter and Saturn are in the southeast before sunrise. After sundown, brilliant Evening Star Venus, Mercury, Mars, and the lunar crescent are in the evening sky.
May 13, 2021: Venus, Mercury, the crescent moon, and Mars are in the western sky after sunset.
May 12, 2021: Thirty minutes after sunset, the razor-thin moon is 1.2° to the left of brilliant Venus. This is the closest grouping of the moon and Venus during this evening appearance of the brilliant planet. Mercury is 9.1° to the upper left of Venus. Mars maintains its eastward march in Gemini. Sirius and Aldebaran are near their heliacal settings, their final appearances in the evening sky for the year.
May 11, 2021: The planet parade continues today. Five planets are on display. Bright Jupiter and Saturn are in the southeastern sky before sunrise. After sundown, brilliant Venus, Mercury, and Mars are in the western sky. The moon is at its New phase and at apogee today.
May 8, 2021: Five planets are visible during morning and evening appearances. Jupiter and Saturn are visible before sunrise. Daylight interrupts the viewing until evening, when Venus, Mercury, and Mars are visible in the west after sundown.
May 7, 2021: The planets and moon parade across the sky today. Jupiter and Saturn are visible before sunrise in the southeast. The moon can be seen closer to sunrise. After sunset Venus, Mercury, and Mars are in the west-northwest.
May 6, 2021: During a 24-hour period, the five bright planets and the moon are visible. Before sunrise this morning, Saturn, Jupiter, and the crescent moon are lined up in the southeast. After sunset, brilliant Evening Star Venus is visible after sunset. As the sky darkens Mercury, then Mars, appears in the western sky.
May 5, 2021: The crescent moon, bright Jupiter and Saturn lineup in the southeast before sunrise. One hour before sunup, the moon is low in the sky with bright Jupiter to its upper right. Saturn is to the upper right of Jupiter. Jupiter is brighter than all the stars in the sky. Saturn is brighter than the stars in the immediate region after the Jovian Giant.