2021, January 11: Morning Star Venus, Crescent Moon

Venus and Moon, January 11, 2021
2021, January 11: Thirty minutes before sunrise, the crescent moon is 3.9° to the right of brilliant Venus.

January 11, 2021:  During bright twilight, the razor-thin crescent moon joins Venus in the southeast.

by Jeffrey L. Hunt

Chicago, Illinois:  Sunrise, 7:17 a.m. CST; Sunset, 4:41 p.m. CST.  Check local sources for sunrise and sunset times for your location.

Find a clear horizon toward the southeast.  About 30 minutes before sunrise, the razor-thin crescent moon, that is 3% illuminated, is 3.9° to the right of brilliant Venus.  Because of the brightness of the sky, use a binocular to initially locate the lunar crescent and Venus.

This is the final visible grouping of Venus and the moon during this morning appearance of the brilliant planet.

Venus at superior conjunction, March 26, 2021.
2021, March 26: Venus is positioned so that the sun is between Earth and Venus. This is known as superior conjunction.

Venus reaches its superior conjunction with the sun during late March.  It then appears later during the spring in the evening sky.

Read about Venus during January.

At superior conjunction, either Mercury or Venus is “behind” the sun.  Not literally, but it is spaced so that the sun is between that planet and Earth.  Usually difficult to see and not a good target for the sun’s intensity can damage a mis-aimed telescope.

Detailed Note: Thirty minutes before sunrise, locate a clear horizon to observe the final visible grouping of the moon and Venus during this Venusian apparition.  The moon (27.8d, 3%) is 3.9° to the right of the brilliant planet.

Read more about the planets during January.

Moon in the Bull's Horns. October 8, 2020

2021, August 14: Waxing Moon, Stellar Double

August 14, 2021: This evening the waxing moon is near Zubenelgenubi, the southern claw, that is a stellar double.  Use a binocular to see both stars that are in a gravitation dance.

Moon and Venus, August 15, 2020

2021, August 13: Evening Sky, Bright Planets

August 13, 2021: This evening the crescent moon appears between Evening Star Venus and Spica as the lunar slice dances eastward.  Jupiter and Saturn are in the southeastern sky.

The crescent moon, November 19, 2020

2021, August 12: Evening Sky, Lunar Dance

August 12, 2021: This evening the crescent moon appears between Venus and Spica as the lunar slice dances eastward.

2021, May 13: The crescent moon is 3.2° to the upper left of Mercury.

2021, August 11: Waxing Moon, Evening Star

August 11, 2021:  The waxing crescent moon is to the upper left of Evening Star Venus this evening in the western sky.

The Crescent Moon, November 16, 2020

2021, August 10: Evening Star Venus, Crescent Moon

August 10, 2021:  The crescent moon is near Venus in the western sky after sunset.



Categories: Astronomy, Sky Watching

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