2021, July 21: Venus – Jupiter Opposition

July 21, 2021:  This evening Venus and Jupiter are in opposite directions from Earth, 180° apart along the plane of the solar system.  Jupiter rises as Venus sets, signaling that they appear in the sky at the same time.

2021, July 21: Venus and Jupiter are in opposite directions in space.
Chart Caption – 2021, July 21: Venus and Jupiter are in opposite directions in space.

by Jeffrey L. Hunt

The month’s third planet – planet opposition, Venus – Jupiter, occurs this evening.  The chart above shows that Venus and Jupiter are in opposite directions from Earth.  They are separated by 180° on the planet of the solar system, known as the ecliptic. 

As Venus sets in the west-northwest, Jupiter rises in the east-southeast. By month’s end, both planets are visible in the sky at the same time, although far apart. Jupiter joins Saturn with Venus during the early evening hours.

Saturn is nearing its opposition with the sun on August 2, followed by Jupiter 17 days later.

Venus appears with Jupiter and Saturn in the evening sky until it zips back into bright twilight and into the morning sky during early 2022.  Each evening, Jupiter and Saturn appear higher in the southeastern sky before sunrise.  Later in the year, the giant planet duo starts the evening in the southern sky.  As fall leans toward winter, they are in the southwest.

As the seasons progress this year, Venus appears farther south and higher in the sky after sunset.  By year’s end it is in the southwest during evening twilight.  Saturn is only 20° to the upper left of the brilliant planet.

Begin looking for Venus, Saturn, and Jupiter at the same time.

Articles and Summaries

2021, May 13: The crescent moon is 3.2° to the upper left of Mercury.

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2021, May 13: Brilliant Venus, Mercury, and the crescent moon in the evening sky.

2021, August 3: Four Evening Planets: Venus, Mars, Saturn, Jupiter

August 3, 2021:  Four planets appear in the evening sky.  Brilliant Evening Star Venus and dim Mars are in the west after sunset.  A little later during the evening, Saturn and Jupiter are easily visible in the southeast.

Saturn (NASA)

2021, August 2: Saturn at Opposition

August 2, 2021: Saturn is at opposition with the sun.  Earth is between the sun and the planet.

2020, July 17: The crescent moon appears near Venus before sunrise. The night portion of the moon is gently illuminated by earthshine.

2021: August 1 – 6: Morning Moon, Bright Stars

August 1 – 6, 2021:  The morning moon wanes toward its New moon phase in the eastern sky.  It passes the bright stars that are prominent in the evening sky during the winter season in the northern hemisphere.  The stars have been making their first appearances in the morning sky during summer.  At this hour, Procyon and bright Sirius are the last stellar duo to appear.

2021, July 8: The flowers celebrate summer.

2021, August 6: Summer’s Midpoint

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Categories: Astronomy, Sky Watching

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