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Orion Nebula
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41	Published by the Federation of Astronomical Societies ISSNWinter Add to Reading List Source URL: www.fedastro.org.uk Language: English Amateur astronomy Romance Deep-sky object European Southern Observatory Planetary nebula Astrophotography Jodrell Bank Observatory Telescope Orion Astronomy Observational astronomy Space
42	PDF Document Add to Reading List Source URL: www.skymaps.com Language: English - Date: 2015-03-31 06:33:54 Messier objects Constellations Local Group Orion Nebula Orion complex Star Binoculars Deep-sky object Astronomical object Astronomy Space NGC objects
43	3 Our Place in the Milky Way Within 5000 light years of our sun, there are 4 separate spiral arms. The following segments represent the locations of these four spiral arms: Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2012-11-19 11:00:30 NGC objects Messier objects Sagittarius constellation Orion–Cygnus Arm Carina–Sagittarius Arm Perseus Arm Milky Way Orion Nebula Nebula Astronomy Milky Way Galaxy Space
44	Figure 18.3: Multiple stars θ 1 and θ 2 Orionis at the center of the Orion Nebula, as seen through a telescope with a diagonal. 9.2-magnitude star 2 to the east. 186 Add to Reading List Source URL: www.covingtoninnovations.com Language: English - Date: 2011-04-04 22:16:56 Universe Trapezium Cluster Orion Nebula Orion Theta Orionis Theta¹ Orionis C Orion constellation Astronomy Astrology
45	The Light From a Warm Dust Grain Although dust is normally dark and obscures light, because dust grains are warm, they also emit light. The picture above-left, shows an optical picture of the Horse Head Nebula in Orion, Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2013-12-16 07:14:16 Astronomical objects Cleaning Dust Particulates Nebula Dark nebula Infrared Cosmic dust Nebulae in fiction Astronomy Space Space dust
46	Astronomy & Astrophysics A&A 537, L10[removed]DOI: [removed][removed] Add to Reading List Source URL: www.aanda.org Language: English Plasma physics Stellar classification Interstellar medium Orion Nebula Fluorine Ionosphere Chemistry Astronomy Astrophysics
47	Autostar v. 22Er EXAMPLE OF FINDING A MESSIER OBJECT Copyright 2001 Michael A. Covington Select Item: Add to Reading List Source URL: www.covingtoninnovations.com Language: English - Date: 2004-05-08 16:46:50 Astronomical catalogues Space Astrology Owl Nebula Planetary nebulae Ursa Major constellation Deep-sky object Messier object Nebula Astronomy NGC objects Orion arm
48	April Sky - West Antlia Tr 16 Tr228 Add to Reading List Source URL: www.users.on.net Language: English - Date: 2015-03-31 09:23:05 Dorado constellation NGC objects Large Magellanic Cloud Orion constellation Tarantula Nebula Nebula Orion Zeta Orionis Epsilon Canis Majoris Astronomy Astrology Universe
49	NOAO-NSO Newsletter Issue 73 March[removed]Science Highlights Add to Reading List Source URL: www.noao.edu Language: English - Date: 2003-02-27 16:33:34 National Optical Astronomy Observatory National Science Foundation Gemini Observatory Stellar evolution Orion Nebula Large Magellanic Cloud European Southern Observatory W. M. Keck Observatory Galaxy formation and evolution Astronomy Space Local Group
50	The birth and death of STAR CLUSTERS in the Milky Way Steven W. Stahler Add to Reading List Source URL: astro.berkeley.edu Language: English - Date: 2012-11-04 13:10:26 Stellar astronomy Orion arm Messier objects NGC objects Star cluster Orion Nebula Globular cluster Star Pleiades Astronomy Space Open clusters