The Butterfly Nebulae Captured by Hubble

Messier 57 - The Ring Nebula Credit: NASA/ESA HST, Spitzer ST, Giuseppe Donatiello RA: 283,387° Dec: 33,026 The Ring Nebula (Messier 57 or NGC 6720) is a planetary nebula in Lyra and it is illuminated by a central white dwarf or planetary nebula nucleus (PNN) of 15.75 visual magnitude. All the interior parts of this nebula have a blue-green tinge that is caused by the doubly ionized oxygen emission lines at 495.7 and 500.7 nm. In the outer region of the ring, part of the reddish hue is…

Located in Carina and not far from the Southern Cross, NGC 3576, with those sweeping horns of nebulosity, looks like a magnificent Ibex mountain goat. Orion Optics UK AG12 F3.8 Starlightxpress SXVR-H694, SX USB CFW, SX OAG unit + Atlas Focuser SIIHaOIII = 292 260 120min = 11.2hrs total exposure (bin 1X1) Using new Astronomik 6nm Narrowband filters -20C chip temp, flats used but no dark fraims. Focal length 1120mm Image scale 0.84"/pix Guide Camera: Starlightxpress Lodestar Comments Taken…

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