Observation by Thomas Lehmann: Two nights earlier I have had a chance t...

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BAA Comet Section

Observer

Thomas Lehmann

Observed

2025 Apr 26 - 00:00

Uploaded

2025 Apr 30 - 21:52

Objects

C/2025 F2

Full filename

2025f2/2025f2_20250426_tlehmann.jpg

Target name

C/2025 F2

Title

Two nights earlier I have had a chance to observe whats left of the comet from Weimar, Germany. The comet was at an altitude of only 5.5° above horizon but I gave it a try with my RASA 11" and ASI6200MC as conditions were exceptionally good for my location. The brightness near the head (green color channel) as measured within an aperture of 3' is 2025 04 26.84 UT, m=9.8mag and the tail extent is about 20' at P.A.=333° I am attaching the stacked image (12 minutes total exposure time) and an inverted star trail subtracted and stronger smoothed image to highlight the dust tail.

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Files associated with this observation

2025f2_20250426_tlehmann.jpg (189.0 kB)

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