Posts Tagged ‘pillars’

A Face in Profile

Credit: ESO

 

A pair of hot blue stars carve the inside of NGC 3324 and create a face in profile in this image from the European Southern Observatory.

Zoom into the sculpted edges of this stellar geode. What shapes or pictures do you see? Leave a note below.

Just like hollow rocks on Earth that can be broken open to reveal delicate crystals, zooming in on the edges of this star cloud reveal filaments of dark dust, elephant trunk pillars and rich, glowing regions of red gas. Strong solar winds and intense radiation from very hot and hefty blue-white stars have blown a bubble in this star cloud. Ultraviolet radiation also excites and warms hydrogen atoms within the cloud creating a warm red glow. Other colors are created by other elements, such as oxygen.

Zoom into the right side of the image and look for the face in silhouette with the bump out resembling a nose. NASA’s Hubble Space Telescope has zoomed even closer into NGC 3324 offering a crisper view of the edge of this stellar bubble.

NGC lies about 7,500 light-years from Earth toward the constellation of Carina, the Keel of Jason’s mythical ship the Argo.

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Nebular “A”

Credit: NASA, ESA, and J. Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Starting out our starry alphabet is the nebula near Pismis 24. Harsh winds from hot, new stars have hollowed out an “A” in this image from NASA‘s Hubble Space Telescope.

The stars of Pismis 24 are massive; some more than 100 times heavier than our Sun. The new stars also unleash a powerful stellar wind that shapes the nebula below. Explore the image and wander from the stars down to the nebula. You’ll encounter tall pillars of dense dust and wispy tendrils of gas. My favorite shape in this cloud is the hand and finger pointing up at Pismis 24. Can you find it? All pillars, or elephant trunks, point back toward the flow of the stellar wind. You can also find a new star near the bottom of the image hollowing out a bubble in the nebula. Can you find other shapes in the nebula, such as tadpoles and worms? These denser pockets of gas may shrink down and ignite on their own as stars.

NGC 6357 glows because of the light of the newly formed stars. Intense ultraviolet radiation coming from the star cluster, excites the gas molecules in the nebula and causes them to glow. Astronomers call this kind of nebula and emission nebula. NGC 6357 and Pismis 24 are found in the constellation Scorpius, the scorpion, about 8,000 light-years from Earth. In our starship, traveling at the speed of light, ten years would pass while moving from the star at the bottom of the nebula to the star cluster at the top.

Ornaments

Credit: NASA, ESA, and J. Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Like a hollowed out ornament, NGC 6357 glows red in the constellation Scorpius. Or, maybe, what I see in this NASA Hubble Space Telescope image is a Christmas tree reaching for the stars of the open star cluster Pismis 24.

The stars of Pismis 24 are massive; some more than 100 times heavier than our Sun. The new stars also unleash a powerful stellar wind that shapes the nebula below. Explore the image and wander from the stars down to the nebula. You’ll encounter tall pillars of dense dust and wispy tendrils of gas. My favorite shape in this cloud is the hand and finger pointing up at Pismis 24. Can you find it? All pillars, or elephant trunks, point back toward the flow of the stellar wind. You can also find a new star near the bottom of the image hollowing out a bubble in the nebula. Can you find other shapes in the nebula, such as tadpoles and worms? These denser pockets of gas may shrink down and ignite on their own as stars.

NGC 6357 glows because of the light of the newly formed stars. Intense ultraviolet radiation coming from the star cluster, excites the gas molecules in the nebula and causes them to glow. Astronomers call this kind of nebula and emission nebula. NGC 6357 and Pismis 24 are found in the constellation Scorpius, the scorpion, about 8,000 light-years from Earth. In our starship, traveling at the speed of light, ten years would pass while moving from the star at the bottom of the nebula to the star cluster at the top.

Ornaments

Credit: NASA, ESA, and J. Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Like a hollowed out ornament, NGC 6357 glows red in the constellation Scorpius. Or, maybe, what I see in this NASA Hubble Space Telescope image is a Christmas tree reaching for the stars of the open star cluster Pismis 24.

The stars of Pismis 24 are massive; some more than 100 times heavier than our Sun. The new stars also unleash a powerful stellar wind that shapes the nebula below. Explore the image and wander from the stars down to the nebula. You’ll encounter tall pillars of dense dust and wispy tendrils of gas. My favorite shape in this cloud is the hand and finger pointing up at Pismis 24. Can you find it? All pillars, or elephant trunks, point back toward the flow of the stellar wind. You can also find a new star near the bottom of the image hollowing out a bubble in the nebula. Can you find other shapes in the nebula, such as tadpoles and worms? These denser pockets of gas may shrink down and ignite on their own as stars.

NGC 6357 glows because of the light of the newly formed stars. Intense ultraviolet radiation coming from the star cluster, excites the gas molecules in the nebula and causes them to glow. Astronomers call this kind of nebula and emission nebula. NGC 6357 and Pismis 24 are found in the constellation Scorpius, the scorpion, about 8,000 light-years from Earth. In our starship, traveling at the speed of light, ten years would pass while moving from the star at the bottom of the nebula to the star cluster at the top.

Hills and Valleys

Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)

Hills and valleys make up the starry landscape of the star-forming region of NGC 3324. This image from NASA’s Hubble Space telescope shows the edge of a giant cavity of gas. Glowing blue light sets the backdrop for wisps of gas and dark trunks of dust. Ultraviolet radiation and howling solar winds from a cluster of extremely massive and hot young stars outside the image, are causing the nebula to glow. The stars are also pushing gas and dust away from the center to form the wall of the cavity.

Look in the blue area near the edge and find wispy tendrils of gas coming from the edge of the cloud. The blistering radiation is causing the edge of the cloud to evaporate. This process slowly erodes the edge of the nebula. A dark tower of gas and dust, just left of center, points toward the source of the strong current of solar wind. The pillar reaches more than a light-year into the cavity and is resisting the strong solar wind. This tower, similar to towers seen in Eagle Nebula, may become new stars one day. As the dust and gas are pushed and compressed by the solar wind, it might begin to collapse under its own gravity. If enough material is available, a star is born and begins to glow. The edge of the cloud we see in this image is just a portion of a huge cavity of gas that is dozens of light-years across. The distance between the Sun and the nearest star, Alpha Centauri, could easily fit inside this nebula.

NGC 3324 is located in the Carina Nebula, a huge star-making nebula about 7,200 light-years away. The Carina Nebula lies in the southern constellation Carina, the Keel, and is home to the Keyhole Nebula and Eta Carina, an active star.

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The ancient peoples saw pictures in the sky. From those patterns in the heavens, ancient storytellers created legends about heroes, maidens, dragons, bears, centaurs, dogs and mythical creatures...
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