The 365 Days of Astronomy Travelers in the Night Eps. 789 & 790: Asteroid With A Tail & Vivian's Debut
May 4, 2025
Explore the intriguing world of asteroids as one astronomer discovers a rare active asteroid with a 19,000-mile tail. Meanwhile, a rookie observer braves turbulent winter nights, facing strong winds and clouds, before finally spotting two unknown Earth-approaching asteroids. These exciting discoveries highlight the importance of monitoring celestial objects to enhance our understanding of the solar system and potential impacts.
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Hogan's Tail-Showing Asteroid
- Josh Hogan discovered an asteroid with a 19,000-mile-long tail in the main asteroid belt.
- His observation led to global follow-up and reclassification of the object as an active asteroid.
Nature of Active Asteroids
- Active asteroids or main belt comets may be icy or rocky, showing comet-like tails and coma.
- Their inner solar system origin differs from typical outer solar system comets.
Vivian's First Asteroid Discoveries
- Vivian Carvuhall faced poor weather for her first solo observing run but discovered two Earth-approaching asteroids on the final clear night.
- Her finds highlight the unpredictable nature and importance of persistent asteroid monitoring.