Borisov: A visitor from outside of our solar system

Welcome to my channel! This week astronomers have discovered the first ever interstellar comet - C/2019 Q4 Borisov! In this video, I will talk about just how they did it, how they confirmed it and why this kind of object is so important.

Extra reading:
Original sighting: https://astronomy.ru/forum/index.php/...

Detection paper: Guzik et al 2019,
https://arxiv.org/abs/1909.05851

Size paper:
https://arxiv.org/pdf/1909.07286.pdf

Minor planet report:
https://minorplanetcenter.net/mpec/K1...

Oumuamua is not an alien spacecraft:
https://www.nature.com/articles/s4155...

Oumumua paper, Siraj et al 2019:
https://www.cfa.harvard.edu/~loeb/190....

Media credits:
Borisov images/comet images: Gennady Borisov
Comet: GEMINI observatory/NSF/AURA
Borisov/oumuamua trajectory: Tony Dunn
Asteroids/comets: ESA/ Hubble/ Calcada/ Kornmesser
Pexels: various
LSST: Science Office/LSST project/NSF/AURA


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