2021o3 20220514 tlehmann

. A color image (no smoothing) from
last night is attached and the comet looks the same as on May 8th, diffuse - but
seemingly healthy. This is the result of 42x 1min exposures using a RASA 11"
with ASI6200MC under extremely bright skies (close to full moon).

Results from photometry of the green channel image in a large aperture (after
star trail removal):

  2022-05-14.88 UT, m1=12.2, coma d=4.5'