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Comparison of comets C/2017 T2 and C/2019 Y4
About this observation
Observer
Nick James
Time of observation
25/03/2020 - 21:00
Object
C/2017 T2 (PanSTARRS) and C/2019 Y4 (ATLAS)
Observing location
Chelmsford, UK
Equipment
90mm, f/5 refr. ASI 294MC
Exposure
35x120s
Tags
Here's a side-by-side comparison of C/2017 T2 and C/2019 Y4 obtained last night. Same instrument, same processing, same scale. T2 is slightly brighter at mag 8.0 but Y4 has the larger coma. The brightening of Y4 has certainly slowed over the last week. The run of very clear clear nights is starting to take its toll on my daytime productivity!
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