Phillyhenge
Listen 05:39
Move over Stonehenge – Philadelphia will feature its own version on Friday, April 6 at 7:30 p.m., when the sunset will align with Market Street. This phenomenon happens a few times a year.
A planet 75% the size of Jupiter has been discovered, orbiting a brown dwarf star 46 times the mass of our planet Jupiter. This is of interest because brown dwarfs are the most numerous type of stars: low fusion temperatures render them not very luminous and they are often overlooked as ‘stars.’ For them to have planets significantly increases the possible number of planets in a galaxy and provides more context for the stellar/planetary genesis story.
This is a great week to gaze aloft and spot the Spring Constellations – 10p – West: Taurus, Orion, Gemini; South: Leo in the Keystone, Big Dipper above; East: Orange Arcturus, Hercules
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Skytalk is hosted by WHYY's Dave Heller. Each week he discusses the latest news in astronomy with Dr. Derrick H. Pitts of the Franklin Institute.
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