Henize 206
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Henize 206 is a
nebula A nebula ('cloud' or 'fog' in Latin; pl. nebulae, nebulæ or nebulas) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral or molecular hydrogen and also cosmic dust. Nebulae are often star-forming regio ...
in the
Large Magellanic Cloud The Large Magellanic Cloud (LMC), or Nubecula Major, is a satellite galaxy of the Milky Way. At a distance of around 50 kiloparsecs (≈160,000  light-years), the LMC is the second- or third-closest galaxy to the Milky Way, after the ...
."NASA Creates Portrait of Life and Death in the Universe", NASA
Jet Propulsion Laboratory The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in the City of La Cañada Flintridge, California, United States. Founded in the 1930s by Caltech researchers, JPL is owned by NASA an ...
, March 8, 2004, webpage:
JPL-80
(NASA/JPL public domain webpage).
This luminous cloud of gas and dust houses a cluster of newborn stars. Although Henize 206 was first catalogued in the 1950s, it was reported in
NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding t ...
press releases in March 2004, for showing several example images generated from the various
infrared camera Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
s on the
Spitzer Space Telescope The Spitzer Space Telescope, formerly the Space Infrared Telescope Facility (SIRTF), was an infrared space telescope launched in 2003. Operations ended on 30 January 2020. Spitzer was the third space telescope dedicated to infrared astronomy, f ...
launched in August 2003.


Photos

The nebula, Henize 206, and the scattered remnants of the exploding star that created it, are pictured in detail in images from NASA's Spitzer Space Telescope (''see image''). Henize 206 lies in the
Large Magellanic Cloud The Large Magellanic Cloud (LMC), or Nubecula Major, is a satellite galaxy of the Milky Way. At a distance of around 50 kiloparsecs (≈160,000  light-years), the LMC is the second- or third-closest galaxy to the Milky Way, after the ...
, a satellite galaxy of the
Milky Way The Milky Way is the galaxy that includes our Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye ...
galaxy, nearly 163,000
light-year A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...
s distant. The nebula is home to hundreds and possibly thousands of stars, ranging in age from two to 10 million years old. provide a detailed snapshot of a universal phenomenon, self-propagating star formation. By imaging Henize 206 in
infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
wavelength In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats. It is the distance between consecutive corresponding points of the same phase on the wave, such as two adjacent crests, tro ...
s, Spitzer was able to see through blankets of dust that dominate visible light views. The image was converted into a conventional photo by reassigning visible colors to the infrared data. The resulting false-color image shows embedded young stars as bright white spots, with the surrounding gas and dust in blue, green and red. Also shown, especially in the 24-μ (MIPS) image, is a ring of gas, which indicates the wake of the ancient supernova's explosion, with new stars embedded in it.


Formation and composition

According to theories of stellar formation, as in other stellar nurseries, the stars in Henize 206 were created after a dying star, or
supernova A supernova is a powerful and luminous explosion of a star. It has the plural form supernovae or supernovas, and is abbreviated SN or SNe. This transient astronomical event occurs during the last evolutionary stages of a massive star or when ...
, exploded, sending intense
shockwave In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a me ...
s through clouds of cosmic gas and dust. The gas and dust were subsequently compressed into large groups, then gravity further condensed them into massive objects, and stars were born. Eventually, some of the stars are expected to die in a fiery blast, triggering another cycle of stellar birth and death. This recycling of stellar dust and gas appears to occur throughout the Universe. Earth's own Sun is considered to have descended from multiple generations of stars, as evidenced by heavy elements found, in the
Solar System The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar S ...
, in concentrations too large for a first-time star. Detailed observations of a star cluster nebula provide astronomers with a laboratory for understanding the early universe, and stellar birth and death cycles. Henize 206 was first catalogued in the early 1950s by Dr. Karl Henize, an astronomer who became a NASA astronaut. He flew during the Spacelab-2 mission, aboard the
Space Shuttle Challenger Space Shuttle ''Challenger'' (OV-099) was a Space Shuttle orbiter manufactured by Rockwell International and operated by NASA. Named after the commanding ship of a nineteenth-century scientific expedition that traveled the world, ''Challenge ...
in July/August 1985. He died in 1993, at age 66, while climbing
Mount Everest Mount Everest (; Tibetan: ''Chomolungma'' ; ) is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point. Its elevation (snow heig ...
.


Notes


References


External links

* {{DEFAULTSORT:Henize 206 Pre-stellar nebulae Large Magellanic Cloud Mensa (constellation)