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19 March 2021: Morning Planets, Evening Moon Joins Mars

The moon, January 15, 2021

2021, January 15: 2021, January 15: The thin waxing moon with earthshine, reflected sunlight from Earth’s features gently illuminates the lunar night.

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2021, March 19: Jupiter and Saturn are low in the southeastern sky before sunrise.

March 19, 2021: Jupiter and Saturn climb into the morning sky. They are visible low in the southeast before sunrise. In the evening sky the crescent moon is near Mars in front of the stars of Taurus the Bull. Mars is to the lower right of the lunar slice.

by Jeffrey L. Hunt

Chicago, Illinois:  Sunrise, 6:55 a.m. CDT; Sunset, 7:02 p.m. CDT.  Check local sources for sunrise and sunset times for your location.

Morning Sky

Two bright planets – Jupiter and Saturn – are low in the southeastern sky before sunrise.  Saturn is nearly 11° up in the southeast.  Brighter Jupiter – over 6° above the east-southeast horizon – is 10.3° to Saturn’s lower left.

Evening Sky

2021, March 19: One hour after sunset, the crescent moon is 3.2° to the upper left of Mars and 5.4° to the upper right of Aldebaran.

One hour after sunset, the waxing crescent moon is high in the west-southwestern sky in front of the stars of Taurus.  The thick crescent is 3.2° to the upper left of Mars and 5.4° to the upper right of Aldebaran.

2021, March 19: Through a binocular Mars is a line with Upsilon Tauri (υ Tau) and 72 Tauri (72 Tau). The Red Planet is moving toward Tau Tauri (τ Tau).

Use a binocular to inspect the moon’s surface, the Hyades star cluster, and the Pleiades star cluster.

With the binocular find Mars with the dimmer starry background.  It is 0.6° above Upsilon Tauri (υ Tau on the chart).  Notice that dimmer 72 Tauri (72 Tau) is between them.

Make nightly observations to watch Mars open a gap with υ Tau and move toward τ Tau.

Here’s more about Mars during 2021.

Read about Mars during March.

Detailed Note: Forty-five minutes before sunrise, Saturn is nearly 11° in altitude in the southeast.  The Jupiter – Saturn gap is 10.3°, with Jupiter to Saturn’s lower left. One hour after sunset, the moon is about 55° up in the west-southwest, Mars (m = 1.2) is 3.2° to the lower right of the moon (6.6d, 35%). The lunar crescent is 5.4° to the upper right of Aldebaran.  Use binocular to observe that the Red Planet is 0.6° above υ Tau, with dimmer 72 Tau between them.  Mars is 3.2° to the lower right of τ Tau.

Read more about the planets during March 2021.

2021, October 5: Skinny Moon, Evening Planet Pack

October 5, 2021: Before sunrise, a very thin moon is visible in the eastern sky.  The evening planet pack – Evening Star Venus, Jupiter, and Saturn – are visible at the same time after sundown.

2021, October 3:  Lunar Slice, Evening Planet Pack

October 3, 2021:  Before sunrise, the thin crescent moon is in the eastern sky, to the lower left of Regulus.  After sunset, the planet pack – Evening Star Venus, Jupiter, and Saturn – shine brightly.

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