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Cosmic distance ladder
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#	Item
661	Details from an exploding star These dramatic images of the Crab Nebula were taken in 2005 by the Hubble Space Telescope. The image on the left has a scale of 0.2 light years/millimeter. The enlargement below has a scale Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2009-01-13 15:40:26 NGC objects Standard candles Space plasmas Plasma physics Crab Nebula Solar System Cosmic distance ladder Sun Star Astronomy Space Light sources
662	Space Telescope Science Institute Newsletter May 1995, Vol. 12, No. 1, pages 1{3 Add to Reading List Source URL: www.sns.ias.edu Language: English - Date: 2002-05-23 16:15:53 Physical cosmology Active galactic nucleus Radio galaxy HE0450-2958 Galaxy Cosmic distance ladder Blazar Halton Arp Astronomy Quasar Radio astronomy
663	Chandra Explores Angular Size 26 Astronomers measure the sizes of objects in the sky in terms of their angular size. For instance, the moon Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2009-04-03 09:00:34 Angle Angular diameter Elementary geometry Minute of arc Light-year Cosmic distance ladder Star Astronomy Astrometry Space
664	HUBBLE SPACE TELESCOPE IMAGES OF A SAMPLE OF TWENTY NEARBY LUMINOUS QUASARS a John N. Bahcall, Sofia Kirhakos, and David H. Saxe, Institute for Advanced Study, School of Natural Sciences, Princeton, NJ[removed]Donald P. Sc Add to Reading List Source URL: www.sns.ias.edu Language: English - Date: 2002-05-22 12:03:33 Quasar Radio astronomy Astrophysics 3C 273 Galaxy Cosmic distance ladder Redshift Blazar Active galactic nucleus Astronomy Physical cosmology Physics
665	Heic0117: FOR RELEASE 10:00 (CET) FRIDAY 14 DECEMBER, 2001 Add to Reading List Source URL: www.spacetelescope.org Language: English - Date: 2004-04-01 11:50:09 European Southern Observatory Lars Lindberg Christensen Hubble European Space Agency Information Centre SN 1987A Cosmic distance ladder FITS Liberator ESO/ST-ECF Science Archive Facility Astronomy Hubble Space Telescope Space
666	GOING Further You can use this 4-STEP SCALE MODEL to imagine some of the distances involved Add to Reading List Source URL: chandra.si.edu Language: English - Date: 2008-07-11 15:38:14 Spiral galaxies Galaxy Milky Way Cosmic distance ladder Solar System Star Universe Galaxy formation and evolution Astronomy Space Local Group
667	16 Eagle Nebula - Closeup The Hubble Space Telescope took the image of the Eagle Nebula (M16). This star-forming region is in the constellation Serpens, and located 6,500 light years from Earth. It is only about 6 milli Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2009-01-01 10:37:00 NGC objects Planetary nebulae Angle Angular diameter Elementary geometry Light-year Hubble Space Telescope Cosmic distance ladder Solar System Astronomy Space Astrometry
668	Prepared in cooperation with Environment Canada Application of the Loop Method for Correcting Acoustic Doppler Current Profiler Discharge Measurements Biased by Sediment Transport Add to Reading List Source URL: pubs.usgs.gov Language: English - Date: 2006-06-20 18:02:48 Earth Acoustic Doppler Current Profiler Discharge Velocity Doppler effect Sediment transport Cosmic distance ladder Differential GPS Systematic error Hydrology Physics Geology
669	The Hand of Chandra! A small, dense object only twelve miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years and resembles a Add to Reading List Source URL: www.chandra.harvard.edu Language: English - Date: 2011-10-05 09:48:57 Parsec Cosmic distance ladder Light-year Pulsar Astronomy Space Parallax
670	C:rsecheumentstt.xps Add to Reading List Source URL: publications.iowa.gov Language: English - Date: 2014-10-02 12:32:42 Calibration Cosmic distance ladder Baseline Geodesy Surveying Systematic error Measurement Engineering Science

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