Backyard Astronomer - Delta College Public Radio

Latest Episodes:

7/24/23 - The Lunar Seas Jul 24, 2023

Show notes

As the phase of the moon grows steadily from crescent to first quarter to full, it’s a good opportunity to explore the contrasts of light and dark on its surface.

7/17/23 - The Keystone of Hercules Jul 17, 2023

Show notes

While the stars of Hercules are not particularly bright, its most distinctive shape are the four stars in its center known as the Keystone.

7/10/23 - The Summer Triangle Jul 10, 2023

Show notes

As evening twilight fades into night, look for three bright stars high in the east that form a giant triangle in the sky. The Summer Triangle is a great way to “star hop” to areas of interest.

7/3/23 - Happy Aphelion Day Jul 06, 2023

Show notes

Every year on or about July 6, the Earth reaches aphelion, its farthest point from the sun in that elliptical orbit. How can we be at our farthest from the sun in summer?

7/3/23 - Happy Aphelion Day Jul 04, 2023

Show notes

Earth is at its farthest point from the Sun on July 6th, called Aphelion. Does our distance from the Sun have any effect on the weather?

6/26/23 - The Sea of Rains Jun 28, 2023

Show notes

Keep watching the upper left portion of the Moon all this week for one of its largest "seas." Mare Imbium, or "The Sea of Rains," spans over 700 miles.

6/19/23 - Moon, Mars & Venus Jun 19, 2023

Show notes

As the planets drift very slowly among the stars, sometimes they appear close to each other in the sky – a meetup called a conjunction.

6/12/23 - A Green Star? Jun 12, 2023

Show notes

Are there any green stars? Astronomers say no, but observers insist that the brightest star in the constellation Libra the Scales, does look green.

6/5/23 - The Northern Crown Jun 05, 2023

Show notes

During the month of June, about 90 minutes after sunset, look high in the east, almost overhead for a faint semi-circular pattern of stars. This is the constellation of Corona Borealis, the Northern Crown.

5/29/23 - Vega in the East May 30, 2023

Show notes

At the end of evening twilight, look about halfway up the northeast sky for a bright bluish star. This is Vega, and it’s another sign that summer is on its way.

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