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The Orion Nebula (also known as ... In October 2023, astronomers, ... The current astronomical model for the nebula consists of an ionized region, ...
NGC 2023 is an emission and reflection nebula in the equatorial constellation of Orion.It was discovered by the German-born astronomer William Herschel on 6 January 1785. This reflection nebula is one of the largest in the sky, [4] with a size of 10 × 10 arcminutes. [3]
Jupiter-mass Binary Objects or JuMBOs are pairs of very low-mass astronomical objects discovered in the Orion Nebula Cluster by the James Webb Space Telescope. Each component has a mass between 0.7 and 13 Jupiter masses (M J), placing them in the planetary-mass regime. The binary pairs have separations ranging from 28 to 384 astronomical units.
The Orion A cloud has a mass in the order of 10 5 M ☉. [7] The stars in Orion A do not have the same distance to us. The "head" of the cloud, which also contains the Orion Nebula is about 1300 light-years (400 parsecs) away from the Sun. The "tail" however is up to 1530 light-years (470 parsecs) away from the Sun.
The Becklin–Neugebauer Object (BN) is an object visible only in the infrared in the Orion molecular cloud 1 (OMC1). It was discovered in 1967 by Eric Becklin and Gerry Neugebauer during their near-infrared survey of the Orion Nebula. [4]
The three stars of θ 2 Orionis within the Orion Nebula. θ 2 Orionis consists of three stars in a line, each about an arc-minute from the next. In addition to the well-known three stars, the Washington Double Star Catalog confusingly lists a component D which is actually θ 1 Orionis C.
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V883 Orionis is a protostar in the constellation of Orion. It is associated with IC 430 (Haro 13A), a peculiar Hα object surveyed by Guillermo Haro in 1952. [4] It is assumed to be a member of the Orion Nebula cluster at 414 ± 7 pc. [2] V883 Orionis, like most protostars, is surrounded by a circumstellar disc of dust.