Comets in October Sky: Observing Two Celestial Events
- This article from El País discusses the simultaneous appearance of two comets, SWAN and Lemmon, in our solar system. Here's a breakdown of the key points:
- * Discovery: Both comets were recently detected - SWAN in September by the SOHO satellite and Lemmon previously.
- In essence, the article highlights a rare astronomical event that provides a unique opportunity for scientists to study the origins of our solar system.
Summary of the Article: Two Comets Currently Visible
This article from El País discusses the simultaneous appearance of two comets, SWAN and Lemmon, in our solar system. Here’s a breakdown of the key points:
* Discovery: Both comets were recently detected – SWAN in September by the SOHO satellite and Lemmon previously.
* Visibility: Neither comet is bright enough to be seen with the naked eye; binoculars are required for observation. Lemmon will be slightly brighter than SWAN.
* Scientific Importance: The simultaneous appearance is a lucky coincidence for scientists. These comets offer valuable insights into the early chemical composition of the Solar System, acting as “travelers” from the distant Oort Cloud.
* SWAN’s Peculiarity: SWAN is behaving atypically, being detected closer to the Sun than expected, suggesting a possibly richer composition. It’s a non-periodic comet, meaning it won’t return.
* Lemmon’s Predictability: Lemmon is more predictable in its behavior and will return, tho with a very long period of approximately 1,300 years.
* Composition: Both comets share a core composition of water, carbon monoxide, and hydrocarbons, with slight variations reflecting their individual evolutionary journeys around the Sun.
* Orbital Influence: the orbits of both comets are influenced by the gravitational pull of the giant planets, notably jupiter.
In essence, the article highlights a rare astronomical event that provides a unique opportunity for scientists to study the origins of our solar system.