Media Information

 
 
 
Collection:
NASA Spitzer Space Telescope Collection
Title:
Riding a Trail of Debris
Description:
This image taken by NASA's Spitzer Space Telescope shows the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of Mars and Jupiter. This material actually encircles the solar system, following the path of Encke's orbit. Twin jets of material can also be seen shooting away from the comet in the short, fan-shaped emission, spreading horizontally from the comet.

Encke, which orbits the Sun every 3.3 years, is well traveled. Having exhausted its supply of fine particles, it now leaves a long trail of larger more gravel-like debris, about one millimeter in size or greater. Every October, Earth passes through Encke's wake, resulting in the well-known Taurid meteor shower.

This image was captured by Spitzer's multiband imaging photometer when Encke was 2.6 times farther away than Earth is from the Sun. It is the best yet mid-infrared view of the comet at this great distance. The data are helping astronomers understand how rotating comets eject particles as they circle the Sun.
Release Date:
2005/01/11
Press Release:
Spitzer Space Telescope Reads Solar System's 'Rosetta Stone' [ http://www.spitzer.…]
Release Credit:
NASA/JPL-Caltech/M. Kelley (Univ. of Minnesota)
Image Credit:
NASA/JPL-Caltech/M. Kelley (Univ. of Minnesota)
Object name:
Comet Encke
Object type:
Comet (Jupiter-family)
Position (J2000):
*RA: *22h39m19.00s *Dec: *-13d40m24.40s
Distance:
2.0 AU from Spitzer (at time of observation)
Observers:
Robert Gehrz, Principal Investigator (Univ. of Minnesota)
Charles Woodward (Univ. of Minnesota)
Michael Kelley (Univ. of Minnesota)
Elisha Polomski (Univ. of Minnesota)
William Reach (Spitzer Science Center, Caltech)
Instrument:
MIPS
Exposure Date:
2004-06-23
Exposure Time:
130 seconds
Related links:
Spitzer Space Telescope [ http://www.spitzer.…]
University of Minnesota [ http://www1.umn.edu…]
facet_what:
Spitzer Space Telescope
facet_what:
Earth
facet_what:
Jupiter
facet_what:
Sun
facet_what:
COMETS
facet_what:
MIPS
facet_what:
Mars
facet_what:
Rosetta
facet_where:
Jupiter
facet_where:
Minnesota
facet_where:
Mars
facet_where:
Jet Propulsion Laboratory (JPL)
facet_where:
Washington, D.C.
Image #:
ssc2005-04a
original url:
UID:
SPD-SPITZ-ssc2005-04 a

Riding a Trail of Debris