AAVSO tagged posts

This is an artists conception of binary star system TYC-2505-672-1. Credit: Jeremy Teaford, Vanderbilt University

Astronomers have discovered an unnamed pair of stars that sets a new record for both the longest duration stellar eclipse (3.5 years) and longest period between eclipses (69 years) in a binary system. Imagine living on a world where, every 69 yrs, the sun disappears in a near-total eclipse that lasts for over 3yrs. Nearly 10,000 light years from Earth the newly discovered system, catalog no. TYC 2505-672-1 was made by a team of astronomers from Vanderbilt and Harvard with the assistance of colleagues at Lehigh, Ohio State and Pennsylvania State universities, Las Cumbres Observatory Global Telescope Network and the American Association of Variable Star Observers..

The previous r...