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Monday, August 06, 2007

Eratosthenes.

Posted by Mick Hyde at 8/06/2007 09:57:00 pm

Labels: Eratosthenes

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17P/Holmes 1RSX J160929.1-210524 2001 2007 2008 3D 3Dfication 48-inch Samuel Oschin Telescope 5 years abulfeda adm guide rail rings Aircraft Albategnius ALH84001 Alhazen Alphonsus Alphonsus Arzachel alpine rille alpine valley amica animation Anthony Wesley AOL apennines APO Apollo Apollo 11 Apollo 11 Flight Journal apollo 14 apollo 15 apollo 16 Apollo 17 Apollo image archive Archimedes ariadaeus rille Aristarchus Aristoteles Artifact Arzachel as-gt mount as-gt no power asteroid Astronomie Magazine Astronomik L-RGB Astronomy Now Astronomy Photographer of the Year 2011 Atlas ATV Aurora Borealis avatar Avebury avistack Baader K-Line Baader K-Line Filter background Bahtinov mask begining best best saturn Betelgeuse birds Black Holes Blog Blue sky Moon bmw Bobs Knobs bodes galaxy booklet boulder tracks bubble nebula Burg c9.25 Cabeus callisto calsky canon 50D Canon EOS 400D canon eos 50d Cassini Cassini spokes Cassini-Huygens Cassiopeia Catalog Catherina Cauchy cayley plains CelestiaGuru Celestron Celestron mount Cerberus Fossae ceres CFHT cge cge play chandra Chris Lintott Cirrus Clavius clementine Cleomedes Clouds Cloudy Nights colimate colliers collimate Comet 17p/Holmes comet hartley 2 comet holmes Computer Conan O’Brien Condorcet West Contrails Copernicus corrector plate Cosmic Quest Covingham Observatory crab Crab Nebula Crayford Crescent Moon CSC damp dangerous dark spot impact Deepsky Stacker Dew DMK DMK 21AF04.AS Don Davies Don P. Mitchell Double-Cluster-in-Perseus Drift Alignment Drygalski DSLR Shutter DSS Dumbbell Nebula earthshine ejector Elysium Mons Endymion Eratosthenes esa Eudoxus europa Exploratorium F1 fabricius faulty switch fender stratocaster first moon mosaic first quarter first saturn flame flattener flickr Floods Swindon focus-mask Fog ford FOV Calculator Fra Mauro fracastorius frosty car Full Moon funny FWHM Galaxy Zoo Ganymede garden Gassendi Geminus globe google earth google moon Google Sky Gordon Freeman goto granulation grs guider ha Hadley Rille Hainzel Hale telescope half-moon halloween happy new year Hayabusa HDD hdr sharpening Helicon Hellas Planitia Hercules Herigonius herschel Hesiodus A high pass filter HiRISE Homemade Horsehead Horsehead (B33) hotshot HST hubble Hubble Ultra Deep Hyginus rille Iapetus IC410 imagemate Imagingsource Ina Caldera International Year of Astronomy 2009 internet radio io IQ ir Iris Nebulas irrgb ISS J.Herschel James Webb Space Telescope Janssen jaxa JAXA/SELENE Jet stream joke Jupiter jupiter animation jupiter impact jupiter moons jupiter seeing JWST KAGUYA kepler klein l-rgb Lacus Atumni Lacus Mortis Lacus Veris Langrenus Large Binocular Telescope LCROSS Le Verrier lechlade Leo 1 letronne LHC Life lights LivingSpace Online Long exposure Serial-Port cable losmandy dovetail LPI LPOD LRGB LRO LROC lucam lulin Lunar 100 Lunar Eclipse Lunar Orbiter Lutetia M1 M101 M106 M13 M27 m3 M31 M33 M42 M45 M51 M52 M56 M57 M81 M82 M92 Maginus magpie Mairan Mandelbrot map maplin Mare Crisium Mare Imbrium Mare Serenitatis marius hills mark power Mars Mars 2007 mars animation Mars apparition mars best mars first mars mro mars opposition mars rock Marscat MaxDSLR McMoon Meade f/6.3 focal reducer MER Mercury messenger messier Messier A MGS milky way Milky-way mimas mist Montes Caucasus Montes harbinger Montes Recti Moon Moon Mars moon and saturn moon edge moon halo moon ISS moon last quarter Moon Mosaic moon mountains moonlight Moretus morning mosaic Mount Hadley movie MRO nasa tv Neil Bone Neptune New Horizons New Moon new observatory New PC new roof new scope NGC 281 NGC 7635 NGC 869 NGC 884 NGC7023 NGC752 Noctilucent Clouds Noel Carboni noise North north moon NTLworld observatory old scope On the Moon: The Apollo Journals Opportunity orion orion nebula orions belt Oval BA Pacman Nebula Palomar Observatory Palomar Skies Palus Somnii Partial eclipse Partial Lunar Eclipse payload pec pad pentax Perseid Perseid meteor shower Perseus Petavius PHD PHD Guiding Phoenix Mars lander Pitatus Planets planetwarp Plato Pleiades Pluto Polar alignment Posidonius powermate powershot powertank precise projection Ptolemaeus Ptolemaeus Alphonsus Arzachel Rupes Recta published Pythagoras R(G)B technique ray Red Filter reducer reflector registax RegiStax5 Regulus Reiner Reiner Gamma Formation RGB rhea Rheita rille Rima Cauchy Rima Hyginus rings river kennet Romanesco Cauliflower roof Rosetta rupert annual rupes altai Rupes Recta Rutherfurd santa maria Satellite Saturn saturn and titan Saturn best Saturn best. saturn moons Saturn storm Saturn V Scheiner schickard Schiller Schröter's Valley scope secondary mirror problem seeing shadows shuttle Sinus iridum size sky Sky and Telescope sky at night sky at night magazine skynyx snow snowflakes south ray crater Southern Highlands space junk Spirit Spirit stereo Star colour star trails starless Starlight Express Start Steve Squyres storm Straight wall STS STS-118 STS-122 STS-123 STS-124 STS-126 sts-129 sun sun filter Sunbeams sunset Sunspot sunspots Takahashi SKY-90 taurus littrow Telescope Test The International Year of Astronomy 2009 The Moon The Planetary Society Weblog The Scale of the Universe THE-MOON WIKI Thebit Theophilus Tilt titan Toast Top of the Lawn tree of life video trees tripod Tycho Uncle Rod Mollise universe scale Uranus uv Vallis Alpes Vallis Rheita Vallis Schröteri Venera Venus Venus Moon vesta view of earth Virgin Media walter weight white horse hill Wilson Observatory WISE Worden's catena world wind xmas