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,...
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- Potentially Hazardous Asteroid (152637) 1997 NC1 close encounter: online observation – 27 June 2026
- The Moon and the Pleiades, a spectacular occultation: online observation – 19 April 2026
- The interaction galaxies NGC 4631 (the “Whale”), NGC 4656/57 (the “Hockey Stick”) and NGC 4627: an image – 21 Mar. 2026.
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Potentially Hazardous Asteroid (152637) 1997 NC1 close encounter: online observation – 27 June 2026 -
The Moon and the Pleiades, a spectacular occultation: online observation – 19 April 2026 -
The interaction galaxies NGC 4631 (the “Whale”), NGC 4656/57 (the “Hockey Stick”) and NGC 4627: an image – 21 Mar. 2026. -
Messier 1, the “Crab Nebula”: a stunning image and unique sequence -
NGC 6992, the eastern part of the “Veil Nebula”: an image.