Posts by 

Bruce McClure

Are day and night equal at the equinox?

Are day and night equal at an equinox? No. Earth's atmosphere and our sun team up to give us more day than night at an equinox.

Moon, Saturn, Jupiter September 15 to 18

Watch for the moon, Saturn, Jupiter on September 15 to 18, 2021.

Alpha Cephei, a fast-spinning star

Alpha Cephei, in the constellation Cepheus the King, is a bit of an enigma. It’s spinning so fast that it appears like a slightly flattened beach ball.

Mercury greatest elongation September 14, best for S. Hemisphere

Watch for Mercury from Southern Hemisphere locations in late August, through September, 2021. Meanwhile, from northerly latitudes, bring binoculars!

Neptune at opposition September 14, 2021

Neptune at opposition - 180 degrees from the sun or opposite the sun in the sky - on September 14, 2021. You need optical aid to spot it. Links to charts here.

Moon, Antares and Venus on September 12

From around the world on September 12, 2021, watch for the moon and Antares. This star - a summer star for the Northern Hemisphere - is shifting westward.

Moon and Venus after sunset September 8 to 11

A crescent moon and Venus appear low in the west after sunset, beginning with the young moon's return around September 8, 2021.

Zodiacal light: All you need to know

The zodiacal light is an eerie light extending up from the horizon before true dawn begins. Southern Hemisphere? Look after sunset!

Venus-Spica conjunction on September 5

The Venus-Spica conjunction happens closest to September 5, 2021 for North American skywatchers. But, around the world, try September 4 and 6, too.

Visible planets – and more – in September 2021

Visible planets in September 2021. Venus, Jupiter and Saturn bright in the evening from all of Earth. Mercury grand for the Southern Hemisphere.

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