Comet C/2018 Y1 Iwamoto: an image (13 Feb. 2019)
On the night of its closest approach to the Earth, we managed to observe comet C/2018 Y1 Iwamoto again, under good sky conditions. We detected its faint ion tail. Here it is our image for you.
The image above comes from the sigma clip combination of 10, 180-seconds exposures, unfiltered, remotely collected with the “Elena” (PlaneWave 17″+Paramount ME+SBIG STL-6303E) robotic unit available at the Virtual Telescope Project in Italy. The robotic telescope tracked the apparent motion of comet C/2018 Y1 Iwamoto, so stars left trails on the background. The image scale is 1.8″/pixel.
A ion tail is easily detected on the SE (upper left) direction. At the imaging time, comet C/2018 Y1 Iwamoto was at about 45 millions of km from our planet and likely at its peak in brightness (mag 6.5/7).
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