Ron's View Of The Universe
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C/2025 A6 (Lemmon) was discovered as an asteroidal object with an apparent magnitude of about 21.5 by the Mount Lemmon Survey in images obtained on 3 January 2025 when it was 4.5 AU from the Sun. Consequently, precovery images by PanSTARRS dating from 12 November 2024 were found. The object was found to have a very condensed coma, 2.2 arcseconds across. A short tail, two arcseconds long was found in images from 21 February 2025. When first discovered the comet was expected to only brighten to apparent magnitude 10, but brightened to apparent magnitude of about 3.5, which would make it about 400 times brighter than original expectations.
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