Hemisphere:  Northern  ·  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: DeepSkyStacker  ·  Jasc Software Paintshop Pro  ·  PixInsight LE  ·  PHD guiding  ·  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)



José J. Chambó
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


Comet Garradd on March 11th, 


            José J. Chambó