Supernova SN 2011dh in Messier 51
On 31 may 2011, several observers discovered SN 2011dh in Messier 51, the well-known “Whirlpool” galaxy. It was the third object of this kind found in this galaxy since 1994. A few days later,...
On 31 may 2011, several observers discovered SN 2011dh in Messier 51, the well-known “Whirlpool” galaxy. It was the third object of this kind found in this galaxy since 1994. A few days later,...
– International Observe the Moon Night 2025 (7 Oct. 2025)
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