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C/2019 Y4 (ATLAS) photometric profile

Image

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About this observation
Observer
Nick James
Time of observation
06/04/2020 - 20:41
Object
C/2019 Y4 (ATLAS)
Observing location
Chelmford, UK
Equipment
C11 Edge HD + FLI6303
Exposure
55x60s
Tags

This a plot of the pixel values for a slice parallel to the tail direction which cuts through the brightest pixel. Three dates are shown: 2020 March 31, April 5 and April 6. All are of the same scale and obtained in conditions of very good transparency with a system resolution of 1.29 arcsec/pix. The peak brightness is falling and the width of the coma is increasing. This is consistent with a significant fragmentation of the nucleus.

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