2021, March 2: Morning Planet Triple Dip, Moon

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2021, March 2: The bright gibbous moon is visible 5.1° upper right of Spica.

March 2, 2021: Three bright planets – Jupiter, Mercury, and Saturn – are visible in the east-southeastern sky during bright morning twilight.  The bright moon is near the star Spica.

by Jeffrey L. Hunt

Chicago, Illinois:  Sunrise, 6:24 a.m. CST; Sunset, 5:43 p.m. CST.  Check local sources for sunrise and sunset times for your location.

This morning the bright moon, nearly 90% illuminated, is about one-third of the way up in the sky above the southwest horizon.  It is 5.1° to the upper right of Spica (“the ear of corn”), the brightest star in Virgo.

2021, March 2: Thirty minutes before sunrise, Jupiter, Mercury, and Saturn are low in the east-southeast. Use a binocular.

About 45 minutes before sunrise, Saturn is slowly making its way back into the morning sky after its solar conjunction in January.  At this hour it is nearly 6° in altitude in the east-southeast.  As the sky brightens from the impending sunrise, Mercury and Jupiter rise higher into the sky,

You’ll need a binocular to catch this triple dip about 30 minutes before sunrise.  Jupiter is the brightest and only about 5° in altitude in the east-southeast.  Mercury is 1.9° to the upper right of Jupiter.  Saturn is 8.1° to the upper right of Jupiter, more than one binocular-field away.

Place Jupiter to the lower left part of the field and move your binocular a little to the upper right, perhaps half a binocular field.  Saturn appears there. 

Jupiter slowly moves away from Saturn after their close conjunction on winter solstice evening.

Detailed Note: One hour before sunrise, the moon (18.7d, 87%) is less than one-third of the way up in the southwestern sky, 5.1° to the upper right of Spica (α Vir, m = 1.0). Forty-five minutes before sunrise Saturn is nearly 6° in altitude above the east-southeastern horizon.  While difficult to see, speedy Mercury is 6.6° to the lower left of Saturn.  As the sky brightens further, bright Jupiter comes into view.  Mercury is 1.9° to the upper right of Jupiter.  Use a binocular to locate the planets.  Fomalhaut (α PsA, m = 1.2) is at its solar conjunction today.  While not near the ecliptic, at local noon, it is over 22° below the bright solar disk. In the evening, one hour after sunset, the lone bright naked-eye planet, Mars, is nearly two-thirds of the way up in the southwestern sky, 2.7° to the lower left of Alcyone and 1.8° to the upper right of 13 Tau. Five hours after sunset, the moon (19.4d, 80%) is less than 7° up in the east-southeast, nearly 13° to the lower left of Spica.

Read more about the planets during March 2021.

2021, July 27: Four Evening Planets

July 27, 2021:  Evening Star Venus, Mars, Saturn and Jupiter are in the evening sky.  Mars is nearing its conjunction with Regulus in two evenings.

2021, July 26: Evening Sky, Mars Closes In

July 26, 2021:  Four bright planets are in the evening sky.  Mars closes in on Regulus for their conjunction in three evenings.  Brilliant Evening Star Venus appears to the upper left of the impending Mars – Regulus conjunction.  Saturn and Jupiter are low in the southeastern sky after sunset.

2021, July 25: Evening Sky, Mars on Final Approach

July 25, 2021:  Four evenings before its conjunction with Regulus, find Mars in the western sky to the lower right of Venus.  As the calendar day ends, look for the moon below bright Jupiter.

2021, July 24: Four Evening Planets, Moon

July 24, 2021: After sunset, Venus and Mars are in the western sky.  A little later during evening hours, the moon is near Jupiter and Saturn in the southeast.



Categories: Astronomy, Sky Watching

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