Our club's, observatory code #M00 #Viestikallio, biggest telescope is #Lomo AZT-27 0.5m/f:16 Classical Cassegrain, weight 8tn, made in USSR 1984.

During recent months it has been modified to 0.5m/f:3.5/F:1750mm prime focus fast astrograph controlled by NINA software.

Here some first astrophotos using it with old DSLR's Canon EOS 100D/5D/6D from traditional objects like M27 Dumbbell nebula, Stephan's Quintet galaxy group and Monoceros Rosette nebula. More to come...

Here our club's #Viestikallio observatory Finland, biggest telescope #Lomo AZT-27 0.5m/f:16 Classical Cassegrain, weight 8tn, made in USSR 1984.

Now we finally get it polar aligned at May Day Eve and equipped it with #Arduino controlled autoguiding using #PHD. Ready for observations.

#Comet 12P/Pons-Brooks had second large ~4mag outburst this year at 2023-10-05.16 UT, https://www.astronomerstelegram.org/?read=16270.

Here 12P observation 7.60 days after the outburst taken 2023-10-12.76 from my #Viestikallio observatory.

The diameter of the coma is here around 300,000 km, from which the radial ejection speed of the dust particles can be calculated to be approximately 230 m/s.

https://www.taivaanvahti.fi/observations/show/119356