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APOD 2012 April 20 M57: The Ring Nebula Credit: Composite Image Data - Subaru Telescope (NAOJ), Hubble Legacy Archive; Processing and additional imaging - Robert Gendler

from pixabay.com

Immagine gratis su Pixabay - Nebulosa Occhio Di Gatto, Ngc 6543

Cat's Eye Nebula orNGC 6543, is a planetary nebula in the constellation Draco Structurally, it is one of the most complex nebulae known. Distance to Earth: 3262 light years

from Boston.com

Hubble Space Telescope Advent Calendar 2008

This object is a billowing tower of cold gas and dust rising from a stellar nursery called the Eagle Nebula. 7,000 light-years distant from us, the soaring tower is 9.5 light-years or about 90 trillion kilometers tall. When Swiss astronomer Philippe Loys de Chéseaux discovered the Eagle Nebula in the mid-eighteenth century, he only described the cluster of stars surrounding it. Charles Messier independently rediscovered it in 1764 as part of his catalog, dubbing it M16.

from Slate Magazine

A Dying Star Creates a Flower in Space

A Dying Star Creates a Flower in Space "This is the most jaw-droppingly beautiful picture of the Ring Nebula I’ve ever seen." https://twitter.com/BadAstronomer/status/502831721650216960

It may look like a grazing seahorse, but the dark object toward the image right is actually a pillar of smoky dust about 20 light years long. The curiously-shaped dust structure occurs in our neighboring Large Magellanic Cloud, in a star forming region very near the expansive Tarantula Nebula. The energetic nebula is creating a star cluster, NGC 2074, whose center is visible just off the top of the image in the direction of the neck of the seahorse. Credit: NASA, ESA, and M. Livio (STScI)

Ghost of the Cepheus Flare-shapes in the royal constellation Cepheus are cosmic dust clouds, faintly visible in dimly reflected starlight.They lurk at the edge of the Cepheus Flare molecular cloud complex some 1,200 light-years away. Over 2 light-years across the ghostly nebula and relatively isolated Bok globule, also known as vdB 141 or Sh2-136, is near the center of the field. The core of the dark cloud on the right is collapsing (likely a binary star system in the early stages of…