Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  Solar system body or event
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Comet Hartley 2, 



    
        

            José J. Chambó
Comet Hartley 2
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Getting plate-solving status, please wait...
Comet Hartley 2, 



    
        

            José J. Chambó
Comet Hartley 2
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Meade ETX-70

Imaging cameras: Canon EOS 350D / Digital Rebel XT

Mounts: LXD75

Software: PixInsight LE  ·  Iris


Dates:Nov. 13, 2010

Frames: 19x90" (28' 30") ISO1600

Integration: 28' 30"

Darks: ~10

Flats: ~12

Bias: ~13

Avg. Moon age: 7.21 days

Avg. Moon phase: 48.18%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 20.20

Mean FWHM: 4.17


Basic astrometry details

Astrometry.net job: 3408597

RA center: 7h 27' 50"

DEC center: -4° 27' 14"

Pixel scale: 4.739 arcsec/pixel

Orientation: 85.911 degrees

Field radius: 0.863 degrees


Resolution: 1024x819

Locations: Hoya Redonda - Valencia (Spain), Enguera, Valencia, Spain

Description

Discovered from Australia by Malcom Hartley at 1986, after orbit studies it's showed that this comet had been instaled on a short periode of 6.46 years after three encounters with Jupiter at 1947, 1971 and 1982. The 2010 apparition (in wich is taked this image) has been favorable because your aproximation to 0.12 AU to Earth reaching 5 rd magnitude, but with a big and fuzzy coma that did difficult your observation at naked eye.

On November 4 the comet was overflown by space probe Deep Impact, taking detailed images of nucleus, emmission jets, and discovering a envelope of snow balls around the comet.

In this photo stars are moved because comet's motion against them, and you can see a big coma of intense green colour with apparent width of Moon (0.5 deg. diameter), and without tail.

More info into the Blog  C O M E T O G R A F I A(in Spanish)

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Sky plot

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Histogram

Comet Hartley 2, 



    
        

            José J. Chambó

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