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Second Interstellar Comet Identified and Confirmed

Second Interstellar Comet Identified and Confirmed


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 17 October 2019

 

ASTROPHYSICS, SPACE

Interstellar Comet 2I/Borisov
Two-color composite image of comet 2I/Borisov, Gemini Observatory/NSF/AURA.
Two-color composite image of comet 2I/Borisov captured by the Gemini North telescope on 10 September 2019. The image was obtained with eight 60-second exposures, four in green and four in red bands, Gemini Observatory/NSF/AURA.

 

Second Interstellar Comet Identified and Confirmed

Interstellar Comet with a Familiar Look,
Astronomical Observatory, Jagiellonian University, October 14, 2019.

MAIN POINTS

2I/Borisov
"On 8 September 2019 at 04:15 universal time, the program issued a red alert and notified the team of a possible new hyperbolic object arriving from interstellar space."

Interstellar
"The body had been first spotted by Gennady Borisov a week earlier, although its identity had been unknown at that time. A closer investigation into the object's orbit confirmed its exosolar origin, making it the second-known interstellar interloper."

Imagery & Data
"...first images of the object obtained at the William Herschel Telescope on La Palma, Spain, and getting ready to receive more data from the larger Gemini North Telescope on Maunakea, Hawaii. The photographs were obtained in two color bands and provided the first astrophysically significant glimpse of the body."

First Look
"...comet Borisov has a dust-dominated morphology, a reddish hue, and that its solid nucleus is about 1 km in radius. "Make of this what you will, but based on these initial characteristics, this object appears indistinguishable from the native Solar System comets."

More Info Coming
"We can safely say that research on this body will be transformative for planetary astronomy and a milestone for astronomy in general."

 

2I/Borisov
Wiki

 

 

Oct 2018
Oumuamua: Neither Comet nor Asteroid?

 

October 2018
Deep Space Visitor: The Monolith! First Known Visitor from Interstellar Space

Oumuamua: First Known Interstellar Visitor Gemini Observatory/AURA/NSF image by Joy Pollard
Oumuamua: Artist's conception. Credit: Gemini Observatory/AURA/NSF image by Joy Pollard

 

 

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