C/2023 A3 (Tsuchinshan–ATLAS) Sep 14.795, 2024. m1 = 4.8 estimated using HIP51784 (6.65) and green channel with measurement diameter of 6' in Maxim DL. This view was a stack of 60 x 1.3sec + 60 x 1sec exposures with a Sony A7iii + 135mmf1.8 GM lens cropped then enlarged 200%. FOV is 1.5x1.5 degrees. Comet was at 16.0 degrees solar elongation at time of observation, and attempts to see the comet with small binoculars failed (conditions were hazy). Location Wellington Point, QLD, Australia |
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