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APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
The Spider Nebula in Infrared
Explanation: Will the spider ever catch the fly? Not if both are large emission nebulas toward the constellation of the Charioteer ( Auriga ). The spider -shaped gas cloud on the left is actually an emission nebula labelled IC 417 , while a smaller fly-shaped cloud off the image to the left is dubbed NGC 1931 and is both an emission nebula and a reflection nebula . About 10,000 light-years distant, both nebulas harbor young, open star clusters . For scale, the more compact NGC 1931 (Fly) is about 10 light-years across. The featured picture in scientifically-assigned, infrared colors combines images from the Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS). Spitzer is celebrating its 16th year orbiting the Sun near the Earth .
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| Date | September 4, 2019 |
|---|---|
| Credit | Image Credit: NASA , JPL-Caltech , Spitzer Space Telescope , 2MASS |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |