File:IRAS20324 (48339932252).png
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Summary
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| Description |
English: The Caterpillar is back! Now with hydrogen-alpha for that pink glow. You may have previously seen it here or in any of the other websites that host these press releases. This is a new version featuring data captured last December (2018).
The really cool thing about these very young stellar objects is that we can actually see changes in the nebula as the process occurs, because accretion of dust and gas casts shadows which change within months or years, a very human-friendly timescale. In this case the glowing fan of light in the "head" of the caterpillar got quite a bit brighter. This particular kind of star-forming blob has been dubbed a frEGG, or free-floating Evaporating Gaseous Globule. It's currently being blown into this long shape by some very large, bright, and hot stars over a dozen light years away. If you want to read more, I recommend clicking the link. Data from the following two proposals were used to create this image: What Are Stalled Preplanetary Nebulae? An ACS SNAPshot Survey Star-Formation in Free-Floating Evaporating Gaseous Globules Red (screen): ACS/WFC F658N Orange: ACS/WFC F814W Cyan: ACS/WFC F606W North is up. |
| Date | Taken on 21 July 2019, 14:26:17 |
| Source | IRAS20324 |
| Author | geckzilla |
| Flickr sets | all astronomy; Hubble Processing |
| Flickr tags | globule; evaporating; star; young; hst; fregg; formation; gaseous; hubble; yso; stellar; gas; dust; freggs; object |
Licensing
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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/48339932252. It was reviewed on 2 March 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 12:18, 2 March 2024 | | 2,368 × 1,913 (8.43 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/65535/48339932252_4c79b6f64c_o.png via Commons:Spacemedia |
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