2023, March 1:  Venus-Jupiter Conjunction

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March 1, 2023: Look for the Venus-Jupiter conjunction in the west-southwest after sundown.  Mars, with Taurus, and the gibbous moon, near the Gemini Twins are farther eastward.

Photo Caption – 2016, August 27: The Venus-Jupiter conjunction

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by Jeffrey L. Hunt

Chicago, Illinois:  Sunrise, 6:26 a.m. CST; Sunset, 5:41 p.m. CST.  Check local sources for sunrise and sunset times for your location.  Times are calculated from the U.S. Naval Observatory’s MICA computer program.

Chart Caption – 2023, March 1: A Venus-Jupiter conjunction is visible in the west-southeast after sundown.

Venus passes Jupiter this evening in a close conjunction. The planets are visible early during twilight in the west-southwest.  By 45 minutes after sundown, brilliant Venus is about 20° up in the western sky.  Bright Jupiter is immediately to the left of the Evening Star.

Photo Caption – 2019, January 19: Venus- Jupiter, 3.7 degrees apart

This is an easily observed event, without the need of a binocular or telescope.  The conjunction is visible until the planets set about 150 minutes after sunset, although the best view – free from obstructions in the skyline – is up to about 90 minutes after the sun sets.

Photo caption – 2019, November 25: Venus is one day past its conjunction with Jupiter.

The two planets appear close together in the sky.  Extend your arm. The tip of your pinky finger fits between the two planets.  This is about the diameter of the full moon, but the planets are too far apart to easily fit into a telescope’s field of view.

While the two planets appear close together in the sky, Venus is 127 million miles away from Earth. Jupiter is 400 million miles beyond Venus.

Chart Caption – 2023, March 1: From north of the solar system, Jupiter, Venus, and Earth are along an imaginary line. From Earth, Venus and Jupiter are near each other.

If we could observe the solar system from north of the plane where the planets revolve, Earth, Venus, and Jupiter are along an imaginary line, with a large gap from Jupiter to Venus, that 400- million-mile distance.  Both planets are in Earth’s evening sky, east of an imaginary line from Earth through the sun that defines noon and midnight.

Photo Caption – 2019, January 21: Venus and Jupiter are 2.6 degrees apart

Venus-Jupiter conjunctions occur every year or so and are quite spectacular.  Venus and Jupiter are the two brightest starlike bodies in the night sky.  Sometimes Mars is brighter than Jupiter when the Red Planet is close to Earth, but the Jovian Giant is consistently the fourth brightest celestial object after the sun, moon, and Venus.

Chart Caption – This chart shows the extent of Venus distance from the sun and where conjunctions with Jupiter can occur.

Conjunctions of the two planets occur within about 45° from the sun, Venus’ maximum distance from the sun as viewed from Earth.  The two planets can be seen during bright twilight, but if they are too close to the sun, they are not easily visible.   The next conjunction, May 23, 2024, is one of those that occurs too close to the sun for easy observation, although the August 12, 2025, conjunction is easily visible before sunrise.  The table below outlines the prospects for the next five Venus-Jupiter conjunctions.

Venus-Jupiter Conjunctions, 2024-2028, Chicago, Illinois
DateWhenNotes
May 23, 2024a.m.The planets are only 0.2° apart, but the conjunction is only 3° from the sun. Not easily visible.
August 12, 2025a.m.One hour before sunrise, Venus is nearly 20° up in the east-northeast.  Venus-Jupiter, 0.9°.
June 9, 2026p.m.One after sunset, Venus is over 15° above the west-northwest horizon.  The Venus-Jupiter gap, 1.6°.
August 25, 2027p.m.The planets are 0.5° apart, but about 4° from the sun.  Not easily visible.
November 9, 2028a.m.Forty-five minutes before sunrise, Venus is over 20° above the east-southeast horizon, 1.7° from Jupiter.  Spica is over 10° below Venus.

Each evening Venus steps eastward faster than Jupiter, opening a widening gap each night.  It stays within 10° of the Jovian Giant through the 11th.  This dance is not finished tonight.  Look for them each clear evening.

2023, March 1: The moon is near the Gemini Twins, Castor and Pollux. Mars is near Elnath, the northern horn of Taurus.

With the conjunction occurring in the western sky, the bright gibbous moon, 75% illuminated, is high in the southeastern sky, near Castor and Pollux, the Gemini Twins.  The lunar orb is 10.9° to the upper right of Castor.

Mars is in the vicinity, over 20° to the upper right of the lunar orb.  The Red Planet is marching eastward in Taurus, 4.5° from Elnath, the Bull’s northern horn.  The planet passes the star in about a week.

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