Astronomy Cast 324: Sungrazers

TL;DR

Comets, such as Comet ISON, journey close to the Sun, creating spectacular shows before their perilous demise.

Transcript

who am I there I am okay gotta figure out who I am uh oh okay cool uh so hi everyone my name is Fraser Kane I'm the publisher of universe today and uh I'm here with Dr Pamela gay how's it going Pamela it it's going you apparently had some kind of holiday over the weekend I we we did here in the United States we celebrated Thanksgiving which um in n... Read More

Key Insights

• 🤨 Su grazer comets originate from the Kuiper Belt or Oort Cloud and face disintegration forces as they approach the Sun.
• 💀 Observing Su grazer comets like Comet ISON provides valuable insights into cometary behavior and composition.
• 🎟️ Specialized satellite missions like SOHO and future projects like Rosetta's mission target Su grazer comets and yield crucial scientific data.
• ☄️ The dynamics of Su grazer comets showcase the volatile and intricate interactions between cometary bodies and the Sun.
• 💀 Despite the destruction of comets like Comet ISON, the scientific merit derived from studying their journeys outweighs the missed opportunities for continued exploration.
• 👾 Engaging in astronomical observations, missions, and discoveries surrounding comets enhances space science endeavors and enriches our understanding of celestial phenomena.
• 💁 Insights into the formation, behavior, and demise of Su grazer comets contribute to unraveling the mysteries of the solar system and its remarkable diversity.
• 🖐️ The continuous exploration of Su grazer comets offers a captivating view of celestial phenomena and demonstrates the intricate dynamics at play within the solar system.

Questions & Answers

Q: How are comets like Su grazer comets formed, and what predicts their perilous journey towards the Sun?

Su grazer comets typically originate from the Kuiper Belt or Oort Cloud due to gravitational perturbations, setting them on a trajectory towards the Sun, causing their eventual demise.

Q: What are the primary forces that lead to the disintegration of comets like Comet ISON as they approach the Sun?

Comets experience tidal forces, solar radiation heat, and pressure, as well as the solar wind, all contributing to their disintegration and volatile behavior as they approach the Sun.

Q: How does the Sun and other satellites like SOHO play a crucial role in detecting and observing Su grazer comets?

The Sun's gravity influence and specialized instruments on satellites like SOHO enable the detection and observation of Su grazer comets moments before their destruction, providing valuable scientific insights.

Q: What are the prospects for future comet missions like Rosetta's interaction with a comet and astronomical observations?

Future missions like Rosetta's plan to land on a comet and study its surface composition will enhance our understanding of comets and provide essential data for future space exploration endeavors.

Summary & Key Takeaways

• Fraser Kane and Dr. Pamela Gay discuss Comet ISON's journey near the Sun during Thanksgiving week.

• Comet ISON was part of a long tradition of sun graters originating from a family of CRZ comets.

• The breakup of Comet ISON provides valuable scientific data and insights into the volatile nature of comets.