2I/Borisov this morning - 0327 to 0555 5/11/19. Unfiltered, 12" Newtonian, ASI1600MMC@-20, 2hrs10min total exposure, Southampton UK 7.2' square crop, 1.44"/pix. Tail visible to maybe 40". Mix of average and kappa-sig stacks to partially reject stars. |
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