Tail visible in negative image, ~15'
The comet is named after the SWAN camera onboard the Solar and Heliospheric Observatory (SOHO). Australian amateur astronomer Michael Mattiazzo noticed the comet in online images. SWAN is a special camera that maps hydrogen in the solar wind, which suggests this comet may be rich in the element.
Hositosorekara aka Alpheratz 4 Apr 2025
Skyandtelescope Mike Olason
It's so new a discovery that aerith and vanbuitenen has not updated yet
SWAN25F is just a placeholder, official name TBA
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