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Showing results for tags '434'.
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Re-processed to try to bring increase the brightness of the various nebulae and increase the contrast a little without futher blowing out the stars and adding too much noise ... orignial: Orion's Belt - centred on "Alnitak", is a 1.7 magnitude triple star 740 light years from Earth and appears at one end of the belt. The Flame nebula ( cat: NGC 2024 or Sharpless 2-277 ) ( lower centre left of the image) glows yellow-pink due to the ionising radiation that comes from Alnitak. Seen from Earth, the Flame nebula is behind Alnitak and around 80 light years further away from Earth. The Horsehead nebula ( cat: Barnard 33 ) ( centre right of the image ) is a dark dust and gas cloud that is only visible from Earth due to the backlight illumination and silhouetting caused by the bright pink glow from the ionised hydrogen gas in the emission nebula IC 434. The bright blue reflection nebula below and to the left of the Horsehead is NGC 2023. Details: Combination of two sessions over a year apart. Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, no filter. Nikon D5300 (unmodified). 14bit NEF, Long Exp. NR on. 18 Dec 2015. 21 x 20 sec ISO 800. 165 x 30 sec ISO 800. 13 x 60 sec ISO 800 . Baader UHC-S , 12bit NEF, Long Exp. NR on. 5 Oct 2014. 19 x 2min ISO400 Pixinsight Links:. https://500px.com/mikeoday http://photo.net/photos/MikeODay
