Comet Interceptor
@cometinterceptor.bsky.social
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An European Space Agency mission, with key contributions from Japan, to visit a long-period comet or interstellar object ☄️
See what we’re up to: www.cometinterceptor.space
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Reposted by Comet Interceptor
Michele Bannister
@astrokiwi.bsky.social
· Aug 27
VLT observations of interstellar comet 3I/ATLAS II. From quiescence to glow: Dramatic rise of Ni I emission and incipient CN outgassing at large heliocentric distances
We report VLT spectroscopy of the interstellar comet 3I/ATLAS (C/2025 N1) from $r_{\rm h}\!\simeq\!4.4$ to $2.85$ au using X-shooter (300-550 nm, $R\!\simeq\!3000$) and UVES (optical, $R\!\simeq\!35k-...
arxiv.org