December 17, 2020: Jupiter and Saturn appear again with the crescent moon although the moon’s spacing is larger than last night. Jupiter continues to close in on Saturn. Great Conjunction Countdown: 4 days!
by Jeffrey L. Hunt
Chicago, Illinois: Sunrise, 7:13 a.m. CST; Sunset, 4:21 p.m. CST. Check local sources for sunrise and sunset times for your location.
Jupiter slowly closes the gap to Saturn. Find them in the southwest, beginning about 45 minutes after sunset. Jupiter is the bright “star” low in the sky. Saturn is to the upper left of its brighter companion.
The planets are closer in the sky than the moon’s apparent size. Extend a pinky finger to arm’s length. The tip of your finger covers both planets. It’s not often that two planets appear this close in the sky.
Great Conjunction Countdown: 4 days!
This evening the crescent moon, that is 13% illuminated, is to the upper left of Jupiter and Saturn.
Farther east, Mars marches eastward in front of the stars of Pisces. It is moving away from Zeta Piscium (ζ Psc on the chart) and Epsilon Piscium (ε Psc).
The Red Planet is over halfway up in the southeast as night falls. The planet is south about three hours after sunset. It sets in the west a few hours after midnight and over five hours before sunrise.
Read about Mars during December.
Detailed note: Forty-five minutes after sunset, Jupiter is nearly 16° up in the southwest, 0.4° to the lower right of Saturn. Great Conjunction Countdown: 4 days. The lunar crescent (3.3d, 13%) is over 10° to the upper left of Jupiter. As the sky darkens further, Mars is over 47° up in the southeast, 1.8° to the upper left of ζ Psc and 4.0° to the lower left of ε Psc
Read more about the planets during December.
September 29, 2021: The thick crescent moon is in the southeast before sunrise, approaching the middle of Gemini. The evening planet pack is visible after sunset.
September 28, 2021: This morning the moon, as it approaches its Last Quarter phase, is high in the south at the Gemini – Taurus border. The evening planet pack – Venus, Jupiter, and Saturn – brightly shine after sunset.
September 27, 2021: Before sunrise this morning, the bright moon seems caught between the horns of Taurus, Elnath and Zeta Tauri. The planet pack, Venus, Jupiter, and Saturn, are visible after sundown.
September 26, 2021: This morning a bright moon is between the Pleaides and Hyades star clusters.
September 25, 2021: The bright morning moon approaches the Pleiades star cluster and Aldebaran. In the evening sky, brilliant Evening Star Venus, Jupiter, and Saturn are easy to spot.