US EditionComet 3I/ATLAS Displays Greenish Hue in New Gemini North Telescope Images
Images from Gemini North show 3I/ATLAS brightening with a green coma from diatomic carbon gas as it nears Earth, possibly leading to more bright outbursts, NSF NOIRLab said.
- On Nov. 26, Gemini North researchers imaged Comet 3I/ATLAS at Maunakea, Hawai‘i, showing the comet brightened after its closest approach to the Sun during one of its most active phases.
- Intense solar radiation is sublimating ices on 3I/ATLAS, spewing gas and dust that form a bright coma and tail recently.
- After viewing the comet through four filters—blue, red, orange and green—NSF NOIRLab researchers found diatomic carbon emits the coma's faint greenish hue.
- This coming week the comet reaches its closest encounter at about 170 million miles on Dec. 19, and dozens of observatories and spacecraft monitor possible bright outbursts.
- As an interstellar visitor, 3I/ATLAS is the third ever found, likely the largest and oldest, while its future behavior as it cools remains unknown after a Shadow the Scientists session led by Bryce Bolin.
11 Articles
11 Articles
Comet 3I/ATLAS brightens and turns greener as Earth encounter approaches
New telescope images show interstellar comet 3I/ATLAS brightening and turning green after solar heating, raising questions about its chemistry and whether surprising outbursts may appear as it nears Earth soon.
Comet 3I/ATLAS displays greenish hue in new Gemini North telescope images
Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system. The data were collected during a Shadow the Scientists session—a unique outreach initiative that invites students around the world to join researchers as they observe the universe on the world's most advanced telescopes.
Why Exocomet 3I/ATLAS Is Glowing Green As It Approaches Earth
Why exocomet 3I/ATLAS is glowing green as it approaches Earth The International Gemini Observatory caught a glowing glimpse of exocomet 3I/ATLAS which is the third confirmed object ever observed traveling through our solar system. The spectacular image was specifically captured when researchers used the Gemini Multi-object Spectrograph at Maunakea in Hawaii. 3I/ATLAS resurfaced in the sky close to Zaniah, a triple-star system located in the cons…
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