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Association of Bangalore Amateur Astronomers

C/2019 Q4 (Borisov) Visitor from Beyond

15 Sep 2019, 07:57 UTC
C/2019 Q4 (Borisov) Visitor from Beyond
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Amateurs discovery continues. Many amateurs patrol the skies in a systematic way and keep discovering comets, Asteroids, Variable stars, Nova and Supernova and even galaxies. This August 30th, amateur astronomer Gennady Borisov scanning the skies from Nauchnij near black sea in Ukraine reported discovery of a comet using his 25 inch telescope. After the initial observations were made it became clear that this comet could be a visitor from beyond solar system. This comet is designated as C/2019 Q4 (Borisov) may be changed to I/2019 Q4 (Borisov) as I/ (I indicating Interstellar) was adapted in 2017. C/2019 Q4 (Borisov) in Cassiopeia constellation is slowly progressing towards perihelion on 9 December 2019 at 1.96 au (Piotr Guzik, et al) and is in hyperbolic orbit. Astronomers have photographed the comet C/2019 Q4 (Borisov) using 8.1 meter (319 inch) telescope. Gemini Observatory two-color composite image of C/2019 Q4 (Borisov) which is the first interstellar comet ever identified. This image was obtained using the Gemini North Multi-Object Spectrograph (GMOS) from Hawaii’s Maunakea. The image was obtained with four 60-second exposures in bands (filters) r and g. Blue and red dashes are images of background stars which appear to streak due to the motion of ...

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