EarthSky News - June 24 - Latest Dusk

June 24 Latest Dusk by:

Tonight … Latest dusk for northerly latitudes If you're located around 40o north latitude, it's your latest evening twilight for the year. How to see the full circle of a rainbow It's possible to see the whole circle of a rainbow - but sky conditions have to be just right. Plus you have to be up high! Star of the week: Alphecca, jewel in the crown Alphecca. Gemma. Alpha Coronae Borealis or simply Alpha Cor Bor. They're all names for one star - the brightest star in the constellation Northern Crown. What's a conjunction? EarthSky community member Tom Wildoner explains the term "conjunction" in astronomy and provides an illustration.

EarthSky Lunar Calendars are on sale 50% OFF A unique and beautiful poster-sized calendar. Keep up with all phases of the moon every night of the year. Only about 100 left in stock, get them while you can!

El Capitan on 1st day of summer The El Capitan rock formation reflected in a flooded valley in California's Yosemite National Park. Photo © Mathias Van Hesemans.

Tonight … Latest dusk for northerly latitudes If you're located around 40o north latitude, it's your latest evening twilight for the year. Submit your photo to EarthSky here!

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