March 27, 2021: Jupiter and Saturn are the bright morning planets in the southeast before sunrise. In the evening, the nearly full moon’s light nearly washes away the dimmer stars. It is in front of the stars of Virgo and to the lower left of Leo. Mars continues its eastward march in Taurus. Find the Red Planet in the west after sunset.
March 27, 2021:
by Jeffrey L. Hunt
Chicago, Illinois: Sunrise, 6:42 a.m. CDT; Sunset, 7:11 p.m. CDT. Check local sources for sunrise and sunset times for your location.
Jupiter and Saturn are the bright morning planets that shine from the southeastern sky before sunrise. One hour before sunrise Saturn is about 11° above the southeast horizon. Brighter Jupiter is 11.3° to the lower left of Saturn.
As twilight progresses, the planetary duo is higher in the sky. Follow them with a binocular until they disappear into the brightness of the approaching sunrise.
The nearly full moon starts the evening about 20° up in the east-southeast. It is in front of the stars of Virgo. Block the moon’s brightness, with your hand as you would the sun, to see Denebola, “the lion’s tail”, 9.9° to the upper left of the lunar orb. You need your binocular to see dimmer Nu Virginis (ν Vir on the chart) that is 3.8° to the moon’s upper right.
Farther west, Mars maintains its eastward march through Taurus. With the bright moon’s dominating the sky, use a binocular to spot the background stars with Mars. Tau Tauri (τ Tau on the chart) is 1.8° below the Red Planet, while Iota Tauri (ι Tau) is 4.0° to the upper left of the planet.
Mars is about 10° below Elnath, “the one butting with horns.” This star along with Zeta Tauri (ζ Tau) make the horns of Taurus. Mars moves between them next month.
Here’s more about Mars during 2021.
Read about Mars during March.
Detailed Note: One hour before sunrise, Saturn is 11.0° in altitude above the southeast horizon. Jupiter – over 6° up in the east-southeast – is 11.3° to the lower left of Saturn. Use a binocular to see that Jupiter is 0.8° to the right of 42 Capricorni (42 Cap, m = 5.2). One hour after sunset, the moon (14.6d, 99%) is in Virgo, 9.9° to the lower right of Denebola and 3.8° to the lower left of Nu Virginis (ν Vir, m = 4.0). Block the moon’s glare to see the background stars. Farther west, use a binocular to spot τ Tau, 1.8° below Mars, and Iota Tauri (ι Tau, m =4.6) 4.0° to the upper left of the planet. Mars (m = 1.3) – over 50° in altitude in the west-southwest – is above the “V” of Taurus, made by Aldebaran and the Hyades star cluster. The planet is less than 10° below Elnath (“the one butting with horns,” β Tau, m = 1.6) that marks the northern horn of the Bull.
Read more about the planets during March 2021.
July 29, 2021: In a challenging-to-see conjunction, Mars passes 0.6° to the upper right of the star Regulus.
July 29, 2021: The Jupiter – Mars opposition occurs this evening. The planets are 180° apart as viewed from our planet. Mars is setting as Jupiter rises.
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.