Summer Triangle Overhead

This month’s Sky Tour astronomy podcast tells you “what’s up” within the night skies. No expertise or tools is important — simply obtain or stream the audio file and take it with you exterior.

If you reside within the Northern Hemisphere, by now you’ve certainly observed that the daylight are getting shorter. Back in July, the change was oh so delicate. But now we’re shedding a pair minutes of Sun every day, extra so for those who reside farther north. The equinox falls on September twenty second at 3:21 p.m. Eastern Daylight Time. On this date the Sun momentarily shines instantly down on Earth’s equator because it heads south in declination. Equinox comes from the Latin phrase aequinoctium, which means “equal nights” — days and nights in every single place are each 12 hours lengthy, and the Sun rises due east and units due west regardless of the place you’re.

Guide to the Summer Triangle
Each of the brilliant stars on the corners of the Summer Triangle lies in a unique constellation.
Sky & Telescope

Summer is perhaps ending astronomically for the Northern Hemisphere, however most of summer season’s stars can nonetheless be seen. Topping the listing is the trio of vibrant stars collectively known as the Summer Triangle. Finding them is straightforward, even when your yard is hopelessly awash with gentle air pollution. Lift your gaze up, way up, to discover a vibrant star that’s nearly instantly overhead. That’s Vega within the constellation Lyra, the Lyre.

If you’re trying up at Vega, you must also be seeing the opposite two corners of the Summer Triangle. To the south of Vega is Altair, the alpha star within the constellation of Aquila, the Eagle. The third star is about two fists from Vega towards east. That star is Deneb, which marks the tail of a sleek swan, the constellation Cygnus. At the swan’s different finish is a medium-bright star known as Albireo, and it lies near the center of the Summer Triangle.

These late-summer evenings additionally provide an opportunity to identify Venus, Jupiter, and Saturn within the hours after sundown. For simple assist discovering them, simply obtain this month’s Sky Tour podcast. In truth, our month-to-month stargazing podcast presents a information to many extra stars and constellations within the nighttime sky. It’s excellent for anybody who cannot inform Polaris from Pegasus! Just obtain or stream the Sky Tour podcast, head outdoor, and let your September night-sky journey start!

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