Hemisphere:  Northern  ·  Constellation: Aries (Ari)
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Comet 174P/Echeclus in outburst, 


            José J. Chambó
Comet 174P/Echeclus in outburst
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Comet 174P/Echeclus in outburst

Technical card

Imaging telescopes or lenses: IAC80 Telescope

Dates:Dec. 15, 2017

Frames: 10x120"

Integration: 0.3 hours

Avg. Moon age: 27.04 days

Avg. Moon phase: 6.88%

Basic astrometry details

Astrometry.net job: 1866000

RA center: 2h 37' 44"

DEC center: +11° 21' 7"

Pixel scale: 0.610 arcsec/pixel

Orientation: 0.281 degrees

Field radius: 0.123 degrees

Resolution: 1024x1024

Locations: Observatorio del Teide, La Orotava, Tenerife, Islas Canarias, Spain


Comet 174P/Echeclus photographed on December 15th 2017, during its last outburst. Discovered in 2000 was classified as an asteroid Centaur type circulating between orbits of Uranus and Jupiter, but years later it showed cometary activity with outbursts in 2006, 2011, 2016 and the present in 2017.

Besides of brightness increase from 17.5 to 13.5 magnitude the most remarkable has been the increase in coma size from 10 to 40 arcseconds. Thanks to resolution of Telescope IAC-80 in this image can be seen the internal structure of coma, wich shows jets departing from nucleus and a dark shape toward South.

Posted in my Blog Cometografia.es 


Sky plot

Sky plot


Comet 174P/Echeclus in outburst, 


            José J. Chambó

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