Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Posts by
Bruce McClure
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!
September 13, 2021
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.
September 12, 2021
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.
September 8, 2021
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.
September 3, 2021
Farthest quarter moon on August 30
In August 2021, the year's farthest quarter moon occurs as the moon reaches last quarter and closest lunar apogee at nearly the same time.
August 28, 2021
Blue Moon, Saturn, Jupiter August 19 to 22
Blue Moon, Saturn, Jupiter visible near one another this upcoming weekend, August 19 to 22, 2021. Watch for these worlds in your sky.
August 19, 2021
2021’s closest planetary conjunction is August 19
2021’s closest planetary conjunction favors Southern Hemisphere The closest conjunction of two planets for 2021 happens on August 19 at...
August 18, 2021
Moon is by Antares – Scorpion’s Heart – August 15, 16 and 17
The moon is by Antares, a red supergiant star, on August 15 and 16. The moon will be in a first quarter phase as it passes the ruddy star.
August 15, 2021
Happy Friday 13th, y’all
A Friday 13th has to fall in a calendar month that starts on a Sunday. In 2021, August 1 is on a Sunday. So August 13 must fall on a Friday!
August 13, 2021
A year with 13 Friday the 13ths?
If we adopted the International Fixed Calendar, we'd have 13 months. And each month would contain a Friday the 13th.
August 13, 2021
