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Tempel 1 and Hartley 2
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Caption:
This image shows the nuclei of comets Tempel 1 and Hartley 2, as imaged by NASA's Deep Impact spacecraft, which continued as an extended mission known as EPOXI.
Tempel 1 is five times larger than Hartley 2. Visible jets are easily seen in images of Hartley 2, but required extensive processing to be seen in images of Tempel 1.
Tempel 1 is 7.6 kilometers (4.7 miles) in the longest dimension. Hartley 2 is 2.2 km (1.4 miles) long.
The Tempel 1 image was built up from more than 25 images captured by the impactor targeting sensor on July 4, 2005. The Hartley 2 image was obtained by the Medium- Resolution Imager on Nov. 4, 2010.
Background Info:
For more information about EPOXI visit http://www.nasa.gov/epoxi and http://epoxi.umd.edu/ .
Cataloging Keywords:
| Name | Value | Additional Values |
|---|---|---|
| Target | 9P/Tempel | 103P/Hartley |
| System | Periodic Comets | |
| Target Type | Comet | |
| Mission | Deep Impact | |
| Instrument Host | Deep Impact | |
| Host Type | Impactor | |
| Instrument | Medium Resolution Instrument (MRI) | |
| Detector | ||
| Extra Keywords | Grayscale, Impact | |
| Acquisition Date | ||
| Release Date | 2010-11-18 | |
| Date in Caption | 2005-07-04 | 2010-11-04 |
| Image Credit | NASA/JPL-Caltech/UMD | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA13629 | |
| Identifier | PIA13629 | |
