posts tagged "galaxy"

  NGC 1579: Trifid of the North   Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, University of Arizona
 Explanation:  Colorful NGC 1579 resembles the better known Trifid Nebula, but lies much farther north in planet Earth’s sky, in the heroic constellation Perseus. About 2,100 light-years away and 3 light-years across, NGC 1579 is, like the Trifid, a study in contrasting blue and red colors, with dark dust lanes prominent in the nebula’s central regions. In both, dust reflects starlight to produce beautiful blue reflection nebulae. But unlike the Trifid, in NGC 1579 the reddish glow is not emission from clouds of glowing hydrogen gas excited by ultraviolet light from a nearby hot star. Instead, the dust in NGC 1579 drastically diminishes, reddens, and scatters the light from an embedded, extremely young, massive star, itself a strong emitter of the characteristic red hydrogen alpha light.
reblog   source:apod.nasa.gov   notes:2   posted:2 years ago   tags:Astronomy Picture of the Day  nebula  APOD  nasa  galaxy  ngc 1570  trifid of the north  

NGC 1579: Trifid of the North
Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, University of Arizona

Explanation: Colorful NGC 1579 resembles the better known Trifid Nebula, but lies much farther north in planet Earth’s sky, in the heroic constellation Perseus. About 2,100 light-years away and 3 light-years across, NGC 1579 is, like the Trifid, a study in contrasting blue and red colors, with dark dust lanes prominent in the nebula’s central regions. In both, dust reflects starlight to produce beautiful blue reflection nebulae. But unlike the Trifid, in NGC 1579 the reddish glow is not emission from clouds of glowing hydrogen gas excited by ultraviolet light from a nearby hot star. Instead, the dust in NGC 1579 drastically diminishes, reddens, and scatters the light from an embedded, extremely young, massive star, itself a strong emitter of the characteristic red hydrogen alpha light.

The longest lunar eclipse in over ten years animated the night sky on December 10. The red hue resulted from the sun’s light passing through the earth’s atmosphere. Viewers in Asia had the best view of the total eclipse, while those watching in Europe saw part of it at moonrise, and North Americans caught part of it as the moon set. It was not visible in South America or Antarctica. The next total eclipse will occur in 2014.

Click for more amazing photos: (27 photos total)
http://www.boston.com/bigpicture/2011/12/lunar_eclipse_of_december_10_2.html

wp-universo-12 by perez1194, found on Flickr http://flic.kr/p/awjomH
reblog   notes:10   posted:2 years ago   tags:photography  flickr  art  wp-universo-12  space  nebula  galaxy  universe  

wp-universo-12 by perez1194, found on Flickr http://flic.kr/p/awjomH

hubble10 by perez1194, found on Flickr
reblog   notes:67   posted:2 years ago   tags:photography  flickr  art  hubble10  space  nebula  galaxy  universe  

hubble10 by perez1194, found on Flickr

Galaxia by perez1194, found on Flickr
reblog   notes:26   posted:2 years ago   tags:photography  flickr  art  Galaxia  space  nebula  galaxy  universe  

Galaxia by perez1194, found on Flickr

Galaxia-1024x768-141060 by perez1194, found on Flickr
reblog   notes:8   posted:2 years ago   tags:photography  flickr  art  Galaxia-1024x768-141060  space  nebula  galaxy  universe  

Galaxia-1024x768-141060 by perez1194, found on Flickr

galaxia_antenae by perez1194, found on Flickr
reblog   notes:6   posted:2 years ago   tags:photography  flickr  art  galaxia_antenae  space  nebula  galaxy  universe  

galaxia_antenae by perez1194, found on Flickr

the-eagle-nebula by perez1194, found on Flickr
reblog   notes:10   posted:2 years ago   tags:photography  flickr  art  the-eagle-nebula  space  nebula  galaxy  universe  

the-eagle-nebula by perez1194, found on Flickr

heart-of-love (by perez1194)
reblog   source:Flickr / perez9411   notes:52   posted:2 years ago   tags:universe  space  love  heart  planet  saturn  galaxy  meteor  earth  

heart-of-love (by perez1194)

reblog   source:sugar-acid-sunshine  theuniverseworks   notes:494   posted:2 years ago   tags:art  galaxy  glow  planet  space  

This is a sequence of images of the galaxy cluster 1E 0657-56, also known as the bullet cluster. The optical image from the Magellan and the Hubble Space Telescope shows galaxies in orange and white. Hot gas, which contains the bulk of the normal matter in the cluster, is shown by the Chandra X-ray image (pink). Gravitational lensing, the distortion of background images by mass in the cluster, reveals the mass of the cluster is dominated by dark matter (blue). 

This is the first clear separation between normal and dark matter.

A team of researchers has found the first direct proof for the existence of dark matter, the mysterious and almost invisible substance thought to make up almost a quarter of the universe.

In this composite image, two clusters of galaxies are seen after a collision. Hot gas, seen in red, was dragged away from the galaxies during the collision. That gas makes up more than 90 percent of the mass of normal, or visible, matter. But most of the mass—and thus matter—is located in the galaxy portions of the clusters, shown in blue, scientists say.

In other words, the bulk of visible matter in the clusters has been separated from the majority of mass—which therefore must be dark matter.

X-ray: NASA/CXC/CfA/M.Markevitch et al.; Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/D.Clowe et al.

How to See a Supernova This Weekend From Your Backyard ↘

Starting this weekend, the closest supernova found in at least 25 years will be visible from your backyard with just binoculars or a small telescope. The exploding white dwarf star is currently brightening in the Pinwheel Galaxy, nestled, from our perspective, within the Big Dipper.

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