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Using Orion to find stars in neighbor constellations. Orion is very useful as an aid to locating other stars. By extending the line of the Belt southeastward, Sirius (α CMa) can be found; northwestward, Aldebaran (α Tau). A line eastward across the two shoulders indicates the direction of Procyon (α CMi).
Orion variable; well-studied protostar 2MASS J05352184-0546085: V2384: 05 h 35 m 21.84 s: −05° 46′ 08.6″ M7: eclipsing binary brown dwarf OMC-2 FIR 4: V2457: 05 h 35 m 26.97 s: −05° 09′ 54.5″ M7: has a circumstellar disk; Orion variable Orion Source I: 05 h 35 m 14.51 s: −05° 22′ 30.4″ protostellar binary Reipurth 50: 05 h ...
Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet-like objects that same year. [4] M78 is the brightest diffuse reflection nebula of a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071.
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The Trapezium or Orion Trapezium Cluster, also known by its Bayer designation of Theta 1 Orionis (θ 1 Orionis), is a tight open cluster of stars in the heart of the Orion Nebula, in the constellation of Orion. It was discovered by Galileo Galilei. On 4 February 1617 he sketched three of the stars (A, C and D), but missed the surrounding ...
Discussing the location of the Orion Nebula, what is seen within the star-formation region, and the effects of interstellar winds in shaping the nebula The constellation of Orion with the Orion Nebula (lower middle) The Orion Nebula is visible with the naked eye even from areas affected by light pollution. It is seen as the middle "star" in the ...
Orion's Belt is an asterism in the constellation of Orion.Other names include the Belt of Orion, the Three Kings, and the Three Sisters. [1] The belt consists of three bright and easily identifiable collinear star systems – Alnitak, Alnilam, and Mintaka – nearly equally spaced in a line, spanning an angular size of ~ 140′ (2.3°).
The dark cloud of dust and gas is a region in the Orion molecular cloud complex, where star formation is taking place. It is located in the constellation of Orion, which is prominent in the winter evening sky in the Northern Hemisphere and the summer evening sky in the Southern Hemisphere. The Horsehead Nebula and its surroundings.