Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  Solar system body or event
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Comet Garradd on March 11th, 


            José J. Chambó
Comet Garradd on March 11th
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Comet Garradd on March 11th

Technical card

Imaging telescopes or lenses: Meade ETX-70

Imaging cameras: Canon EOS 350D / Digital Rebel XT

Mounts: LXD75

Guiding telescopes or lenses: Bresser Skylux 70/700

Guiding cameras: Meade DSI

Software: PHD guiding  ·  DeepSkyStacker  ·  Jasc Software Paintshop Pro  ·  PixInsight LE  ·  APT - Astro Photography Tool

Dates:March 11, 2012March 14, 2012

Frames: 10x200" ISO400

Integration: 0.6 hours

Darks: ~9

Flats: ~15

Bias: ~100

Avg. Moon age: 19.90 days

Avg. Moon phase: 71.59%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.35

Mean FWHM: 4.10

Temperature: 13.00

Basic astrometry details

Astrometry.net job: 3408593

RA center: 12h 52' 27"

DEC center: +70° 36' 7"

Pixel scale: 7.298 arcsec/pixel

Orientation: 31.806 degrees

Field radius: 1.662 degrees

Resolution: 1280x1024


The comet Garradd begins to going away and already shows a meaningful lowering in your brightness, being observable again only by binoculars. In the image is sensed only a bit of your dust tail every time most disperse, meanwhile the gassy isn't visible.

More info on the Blog  Cometografia.es  (in Spanish)


Sky plot

Sky plot


Comet Garradd on March 11th, 


            José J. Chambó