M57 – 2013.10.29.
Also known as: M57 Date/time: 2013.10.29. 17:10 – 17:30UT Equipment: 235/1280 Dobson – OptiScope Magnification : 64x, 85x Seeing: 7/10 Transparency: 3/5 Temperature: 18°C Humidity: low Wind: – Location: Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″ Observer: Bognár Tamás Digital sketch made with GIMP 2.8 + Wacom Bamboo …