| | Artist's concept of some of the different types of exoplanets - planets orbiting distant suns - discovered so far. Image via NASA. | | |
Good morning! What is the Hypatia Catalog? | | So far, astronomers have found some 3,778 confirmed exoplanets, plus 2,737 possible worlds awaiting confirmation. And that's why they need the Hypatia Catalog. It uses "big data" - extremely large data sets - hopefully to reveal patterns, trends, and associations that might lead to finding distant worlds harboring life. Read more. | | |
Next few evenings … Moon, Venus, Jupiter | | From approximately July 7 to September 7, Mars - brightest since 2003 - outshone Jupiter. Now, Jupiter has reclaimed its rank as 3rd-brightest night sky object, after Venus and the moon. Watch for these 3 brightest worlds, clustered together, this week. See chart below and read more. | | |
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What is a parsec? | | Why do professional astronomers speak of distances in the universe not in terms of light-years, but in terms of parsecs, a distance of 3.26 light-years? Explanation here. Illustration of the shift in perspective that happens as an observer moves between the 2 locations. Image via Las Cumbres Observatory. | | |