This is our second attempt of Dumbbell Nebula in Vulpecula constellation near Cygnus the swan. Planetary nebules are formed when a star in its dying stage expands. The expanded star has cooler outer layers. These outer layers are puffed away into space which leaves the core white dwarf star. Fate of our sun is going to similar in about 5 billion years later. Other notable and bright planetary nebula are Ring Nebula (M57), Helix Nebula, Cats Eye Nebula, Escimo Nebula etc.
Dumbbell is estimated to be 1,200 light-years from Earth. The nebula is one of the most bright planetary nebula in the sky and easily visible through binocular or a small telescope. Perhaps even with naked eye from a dark site. The image is taken at a nearby semi-dark site at Rancho Canada Del Oro on September 14, 2012..
Also marked is a star HD189733 which is known to have a hot-Jupiter like planet.
Image Details:
Total Exposure: 57 minutes
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ISO: 800
Camera: 60d Unmodified.
Equipment: Orion Atlas EQ-G, Astro-Tech AT111.
Orion Starshoot mini-guider with PhD guiding.
The seeing conditions were moderate. Seeing was not that great and the region we photographed had particularly poor seeing. We originally had planned to image cocoon nebula however we had signification issues with guiding and hence decided to do a brighter object indeed. Dew and cold limited our exposure session to about 2 hours.
Tags: Exoplanets, HD189733b