Space Calendar September 2021: Know about Happenings in Space

Space Calendar September 2021
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Space Calendar September 2021

Highlights

Space Calendar September 2021: Make yourself aware of what's happening in the space this month, September 2021.

Space Calendar September 2021: These dates are subject to change. Launch dates are taken from Space.com.

September 3: Mercury reaches its highest point in the evening sky. Shining at magnitude 0.1, the innermost planet will be barely visible above the western horizon at sunset.

September 6: The new moon arrives at 8:52 p.m. EDT (0052 September 7 GMT).

September 9: Conjunction of the moon and Venus. The waxing crescent moon will pass about 4 degrees to the north of Venus. Look for the pair above the western horizon after sunset.

September 13: Mercury at greatest elongation east. The innermost planet will reach its greatest eastern separation from the sun, shining brightly at magnitude 0.1. Catch the elusive planet above the western horizon shortly after sunset.

September 14: Neptune at opposition. The gas giant will appear at its biggest and brightest of the year, shining at magnitude 7.8. (You'll need a telescope to see it.)

September 15: SpaceX will use a Falcon 9 rocket and Crew Dragon spacecraft to launch the first all-civilian orbital mission, known as Inspiration4. It will lift off from Launch Complex 39A at NASA's Kennedy Space Center in Florida. Watch it live

September 16: A United Launch Alliance Atlas V rocket will launch the NASA/USGS Landsat 9 satellite from Vandenberg Space Force Base in California.

September 16: Conjunction of the moon and Saturn. The waxing gibbous moon will swing about 3 degrees to the south of Saturn in the evening sky.

September 18: Conjunction of the moon and Jupiter. The waxing gibbous moon will swing about 4 degrees to the south of Jupiter in the evening sky.

September 20: The full moon of September, known as the Full Harvest Moon, occurs at 7:55 p.m. EDT (2355 GMT).

September 22: The equinox arrives at 3:21 p.m. EDT (1921 GMT), marking the first day of autumn in the Northern Hemisphere and the first day of spring in the Southern Hemisphere.

September 24: The waning gibbous moon and Uranus will make a close approach, passing within 1.3 degrees of each other. Shining at magnitude 5.7, Uranus may be bright enough to spot with the naked eye under dark skies.

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