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Sharpest Spiral Galaxy Image Released

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The sharpest image ever taken of the large "grand design" spiral galaxy M81 was released at the American Astronomical Society (AAS) annual meeting, being held this week in Honolulu, Hawaii. Though the galaxy is 11.6 million light-years away, NASA spiralgal.jpgHubble Space Telescope's view is so sharp it can resolve individual stars, along with open star clusters, globular star clusters and even glowing regions of fluorescent gas. Astronomers plan to use the Hubble image to study the star formation history of the galaxy and how this history relates to the neutron stars and black holes seen in x-ray observations of M81 with NASA's Chandra X-ray Observatory. The data was taken with the Advanced Camera for Surveys in 2004 through 2006. This color composite was assembled from images taken in blue, visible, and infrared light.  M81 may be undergoing a surge of star formation along the spiral arms due to a close encounter it may have had with its nearby spiral galaxy NGC 3077 and a nearby starburst galaxy (M82) about 300 million years ago, the AAS said. (Photo courtesy Space Telescope Science Institute)
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Published: May 2007
Glossary
american astronomical society
The American Astronomical Society (AAS) is a prominent professional association of astronomers and other scientists dedicated to the study of astronomy and related fields. Founded in 1899, the AAS aims to enhance and share knowledge of the universe, support the astronomical community, and advocate for the field of astronomy. Here are some key aspects of the AAS: Membership: The society comprises a diverse group of individuals, including professional astronomers, educators, students, and...
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
AASAmerican Astronomical Societyglobular stargrand designHubble Space TelescopeNASANews Briefsopen star clustersphotonicsPhotonics Tech Briefsspiral galaxy M81

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