Horsehead Nebula
Related Category: Astronomy: General
dark nebula located in the constellation Orion; designated IC 434 or B 33.
Horsehead Nebula
The Horsehead Nebula (also known as Barnard 33 or IC 434) is a dark nebula in the Orion constellation.
Horsehead Nebula
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Horsehead Nebula (B33) and IC434 Emission Nebula in Orion
This dense cloud of interstellar dust is silhouetted against the backdrop of IC434 emission nebula just 30' S of zOrionis (see finder chart below).
Horsehead Nebula
An absorption nebula in the middle of Orion. See Omega Nebula. (NGC 2024)
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HORSEHEAD NEBULA
The Horsehead Nebula is a huge cloud of dust in space that is shaped like a horse's head. It is luminous at its edges because it is in front of a bright emission nebula. It is located in the constellation called Orion.
The Horsehead Nebula in Orion. (Image credit: David Malin, Anglo-Australian Observatory/Royal Observatory Edinburgh.) Spanish and German astronomers using telescopes on La Palma, ...
The Horsehead nebula silhouetted against a bright HII region, is the most famous example of a dark nebula.
Credit: AAO/David Malin
A visual image of Barnard 68, a dark nebula sillouetted against a region very rich in stars.
Credit: ESO ...
The Horsehead Nebula in Orion. This image, approximately 1.5° across, was obtained with the UK Schmidt telescope at the Anglo-Australian Observatory.
The Horsehead nebula B33 is a dark dust cloud in front of emission nebula IC434. The shape of the dust cloud gives the nebula its name.
Below the belt star Alnitak is the Flame nebula NGC2024.
The Horsehead Nebula, an example of a dark nebula. Dark nebulae are similar to diffuse nebulae, but they are not seen by their emitted or reflected light.
The Horsehead Nebula, a dense molecular cloud (dark nebula) in the Orion region. It is in front of an emission nebula, an HII region.
Emission Nebulae ...
The Horsehead Nebula is an intriguing and devilishly difficult dark nebula found just between zeta Orionis and sigma Orionis, visible in medium to large telescopes given the right sky conditions. An H-Beta filter is also helpful.
This is the Horsehead Nebula and NGC 2023. (Courtesy Anglo-Australian Observatory/Royal Observatory Edinburgh)
(104K GIF) ...
IC 434 or the Horsehead Nebula appears as a dark cloud of thick dust in the shape of a horse's head. The nebula is located near [5975] zeta Orionis.
To the east, associated with Sigma Ori lies another bright cloud, one that highlights the famed dark "Horsehead Nebula," in which stars are being born. Everywhere among these dark clouds we see the signatures of the formation process.
Below it and next to the Horsehead Nebula is Alnitak. In the upper right is the Orion Nebula. Photo: Robert Gendler
The central and brightest of the three stars in Orion's Belt and the fourth brightest star in the whole of Orion.
NGC 2023 and the Horsehead nebula
AAT 94. The Red Rectangle
AAT 19. NGC 1976, M42 and M43, the Orion nebula
UKS 1. The Horsehead nebula in Orion
UKS 8. Wide angle view of the Orion nebula
UKS 23. The Horsehead and Orion nebulae
UKS 25.
Lying just below the belt of Orion, the Horsehead Nebula is actually two clouds of gas and dust for the price of one, with one lying in front of the other.
May's Hubble Heritage image is of Barnard 33, AKA the Horsehead Nebula, a dark nebula. 1,600 light-years from us, the Horsehead Nebula lies in the constellation Orion; this image covers approximately 2.2 light-years across.
The H-beta filter transmits only the H-beta emission line and is only useful on a handful of objects, with the most popular being the Horsehead nebula, the California nebula, and the Cocoon nebula.
The glowing red region above and to the right of that is the Horsehead Nebula, and the giant red arc is known as Barnard's Loop, ...
Arguably the most famous dark nebula, the Horsehead Nebula.
A dark nebula is a large molecular cloud which appears as a star-poor region where the dust of interstellar medium seems to be concentrated.
One of the most famous dark nebulae is the Horsehead nebula in Orion, so named for the silhouette of the dark mass in front of a more luminous nebular region.
Nebula (clumps of gas and dust) ( The Horsehead Nebula, (C) Anglo-Australian Observatory and Photograph by David Malin.), light year
1013
The solar system ...
A silhouette of this type of nebula may be seen if against a very bright background, such as the Horsehead Nebula in the constellation Orion.
Horsehead Nebula
Nebula ...
Finally, dark nebulae are clouds of gas and dust which block the luminosity from any objects behind them. The Horsehead Nebula, then, also in Orion, ...
ORION
Orion, also known as "The Hunter," is a constellation. The brightest stars in Orion are Rigel. Betelgeuse, and Bellatrix. The Horsehead Nebula and the nebulae M42 and M43 (called the Orion nebula) are also in this constellation.
Visible (courtesy of Howard McCallon), near-infrared (2MASS), and mid-infrared (ISO)
view of the Horsehead Nebula. Image assembled by Robert Hurt.
A dark nebula is a type of interstellar cloud that is so dense that it obscures the light from the background emission or reflection nebula (e.g., the Horsehead Nebula) or that it blocks out background stars (e.g., the Coalsack Nebula).
The central "star" of the sword is actually not a star at all, but the Great Orion Nebula, one of the regions most studied by astronomers in the whole sky. Nearby is the Horsehead Nebula (IC 434), ...
The difference between the topocentric and geocentric positions of an object, when the object is on the astronomical horizon. [S92]
Horsehead Nebula ...
Horsehead Nebula[Credit: © Anglo-Australian Observatory]
Milky Way Galaxy as seen from Earth[Credit: © Dirk Hoppe]
Four irregular galaxies, as observed by the Hubble Space Telescope.
light from a very hot star excites a cloud of hydrogen gas; the UV radiation ionizes the hydrogen (it strips electrons from the hydrogen atoms). The free electrons combine with protons, forming hydrogen and red light. The Horsehead Nebula is in front ...
 See also: Nebula, Orion, Light, Earth, Telescope
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