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Apparent magnitude
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61	The Inverse Square Law of Light The relationship between distance and brightness, and how astronomers measure distances to far away objects Image Credit: Splung.com Add to Reading List Source URL: www.nasa.gov Language: English - Date: 2013-04-30 20:30:30 Photometry Lighting Astrophysics Cosmic distance ladder Physical cosmology Apparent magnitude Luminosity Star Variable star Physics Astronomy Observational astronomy
62	132 Birriel et al., JAAVSO Volume 38, 2010 Documenting Local Night Sky Brightness Using Sky Quality Meters: An Interdisciplinary College Capstone Project and a Add to Reading List Source URL: www.aavso.org Language: English - Date: 2010-09-27 11:30:25 Light pollution Astronomy Measurement Visibility Apparent magnitude Bortle Dark-Sky Scale Sky brightness Morehead State University Night sky Observational astronomy Lighting Light
63	Kathryn Mummah What you need to know astronomically What happened Add to Reading List Source URL: quarknet.fnal.gov Language: English - Date: 2012-08-07 20:40:38 Cosmic Background Explorer Absolute magnitude Apparent magnitude Star Order of magnitude Magnitude Observational astronomy Astronomy Space
64	Chandra X-Ray Observatory Variable Stars Stars appear to shine with a constant light; however, thousands of stars vary in brightness. The brightness that a star appears to have (apparent magnitude) from our perspective Add to Reading List Source URL: chandra.harvard.edu Language: English - Date: 2009-04-07 11:06:46 Universe Variable stars Observational astronomy Star types SS Cygni Apparent magnitude Star Magnitude American Association of Variable Star Observers Astronomy Cygnus constellation Space
65	More Discoveries… Better Descriptions From the 1890s through the 1930s, asteroid research was buzzing with excitement; a total of 1140 asteroid discoveries occurred during this time. With such a surge in activity, it b Add to Reading List Source URL: dawn.jpl.nasa.gov Language: English - Date: 2011-02-02 14:51:03 Ceres Observational astronomy 4 Vesta Asteroid Space telescopes Hubble Space Telescope 2 Pallas Magnitude Apparent magnitude Planetary science Spaceflight Astronomy
66	Chandra X-Ray Observatory Variable Stars Stars appear to shine with a constant light; however, thousands of stars vary in brightness. The brightness that a star appears to have (apparent magnitude) from our perspective Add to Reading List Source URL: chandra.harvard.edu Language: English - Date: 2009-04-07 11:14:58 Variable star Apparent magnitude Cosmic distance ladder Star Magnitude Absolute magnitude Mira RV Tauri variable Astronomy Observational astronomy Space
67	USNO/AA Technical Note[removed]Updating the Magnitudes of the Planets in The Astronomical Almanac James L. Hilton Add to Reading List Source URL: aa.usno.navy.mil Language: English - Date: 2012-01-05 13:26:40 Apparent magnitude Venus Mercury Coefficient Planet Space Knowledge Academia Observational astronomy Terrestrial planets Polynomials
68	Exploring Stars in the Milky Way National Aeronautics and Space Administration i Add to Reading List Source URL: www.nasa.gov Language: English - Date: 2013-06-27 10:21:09 Star Milky Way Magnitude Apparent magnitude Stellar classification Naked eye Galaxy Night sky Globular cluster Observational astronomy Astronomy Space
69	Detecting the Most Distant Supernova in the Universe When the Webb Space Telescope begins operation in ca 2015, one of its first scientific goals will be to detect, if they exist, the most distant supernova in the univer Add to Reading List Source URL: jwst.nasa.gov Language: English - Date: 2010-12-10 16:38:18 Space Observational astronomy Standard candles Light sources Supernovae Apparent magnitude Supernova Cosmic distance ladder Redshift Astronomy Physics Physical cosmology
70	PDF Document Add to Reading List Source URL: frank.harvard.edu Language: English - Date: 2000-12-31 10:21:28 Lighting Photometry Photon Star Apparent magnitude Physics Observational astronomy Light sources