Mars and Morning Star Venus are nearing their opposition so that they do not appear together in the morning sky for the remainder of 2020. In the evening sky, three planets – Mars, Jupiter, and Saturn – along with the moon, are easy to locate.
by Jeffrey L. Hunt
Chicago, Illinois: Sunrise, 7:13 a.m. CDT; Sunset, 5:56 p.m. CDT. Check local sources for sunrise and sunset times in different locations.
International Space Station Pass (Chicago, Illinois area) begins at 6:02 a.m. CDT low in the south-southwest. It reaches its highest point about 44° up in the southeast at 6:05 a.m. CDT. It disappears at 6:08 a.m. CDT about 10° up in the east-northeast. Find an unobstructed view to the south and east. The ISS moves below Sirius in the south-southwest, beneath Regulus and above Venus in the east. The station is brighter than Sirius and dimmer than Venus. This is an excellent opportunity to see the passage of the ISS across the sky.
Morning: It’s time to make the “last call” to see Mars and Venus in the morning sky together for the rest of 2020. Mars is low in the west 90 minutes before sunrise, while Venus is about 15° up in the east. On November 9, the planets are in opposition – appear in opposite directions in the sky. Mars sets in the west as Venus rises in the east. What is the last day you see Venus in the eastern sky and Mars in the western morning sky? When Venus moves back into the evening sky next year, they again appear in the sky at the same time. As Venus rises higher, the starfield of Virgo becomes easier to see. The planet is near the stars Nu Virginis (ν Vir) and Beta Virginis (β Vir).
Detailed morning note: Ninety minutes before sunrise, Mars is over 5° up in the west. The planet sets one hour before sunrise this morning. At this hour, brilliant Venus is over 22° in altitude in the east-southeast. Venus is in Virgo. It moves through the constellation in 36 days. In the starfield, the planet is 3.2° to the lower right of ν Vir and 3.0° above β Vir. The moon reaches its First Quarter phase at 8:23 a.m. CDT.
Evening: Mars, Jupiter, and Saturn are in the evening sky. Jupiter and Saturn are in the south-southwest as a prelude to the Great Conjunction on December 21, 2020. The Jupiter – Saturn gap is 5.8°. Saturn is to the upper left of Jupiter. The planets are slowly moving eastward compared to the starry background of eastern Sagittarius. (See the starry background for Jupiter and Saturn here.) Jupiter sets in the southwest before 10:45 p.m. CDT. The slightly gibbous moon is to the lower left of Saturn. Farther eastward, bright Mars is retrograding among dim stars in Pisces. The Red Planet sets tomorrow morning about an hour before sunrise. (See our Mars summary for October here.)
Detailed evening note:One hour after sunset, the slightly gibbous moon (7.2 days after the New moon phase, 55% illuminated), 25.0° up in the south in southwest Capricornus, is 11° to the lower left of Saturn. The Jupiter – Saturn gap is 5.8°. In the starfield, Saturn is 1.8° to the lower left of 56 Sgr. Jupiter is 3.9° to the lower left of π Sgr and 0.6° below 50 Sgr. At this hour, Mars is over 15° in altitude in the east. Two hours after sunset, Mars is 25° in altitude in the east-southeast. The Red Planet is 0.8° to the lower right of 80 Psc and 3.4° to the lower right of ε Psc.
Read more about the planets during October.
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.
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.
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.
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.
July 23, 2021: Four bright planets are visible during evening hours. Venus and Mars are in the western sky after sunset. A little later, the moon is near Saturn and Jupiter in the southeastern sky.