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... 2015 October 9 . The Moon Entering Earth's Shadow . ... Explanation: On September 27/28, from all over the planet's nightside moon watchers enjoyed a total lunar eclipse. The dramatic celestial spectacle was widely imaged , but this lunar eclipse picture may look a little strange and unfamiliar, made with a point and shoot camera of a bygone era. ... Entering Earth's shadow, the Moon grew dimmer and its moontrail narrower as the eclipse progressed . ... About APOD | ...

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... Large . ... Normal . ... Thumbnails . ... Enter: Large | ... Contents with thumbnails: Large | ... Florence streets . ... Rome. ... Sunday, 12 September. ... Monday, 13 September. ... Tuesday, 14 September. ... Wednesday, 15 September. ... Thuesday, 16 September. ... Friday, 17 September. ... Saturday, 18 September. ... There's also index of the complete set of photos with thumbnails. ... return to photo album contents | ...

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... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Images . ... Star Clusters . ... Usage of ESO Images and Videos . ... Catch a Star 2013 . ... This photograph shows that the U-shaped centerpiece has entered the enclosure and is slowly being moved towards the center of the building, above the lower mechanical telescope structure to which is will later be fixed. ...

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Many entry fields permit sexagesimal entry (h:m:s.s or :':"). ... Sexagesimal entry is flexible in that you can specify one to three fields, as you desire. ... Offset and duration entry widgets assume that a single field is decimal arc-seconds or seconds ('.' or s.s) and two fields are (arc) minutes and seconds (':"." or m:s.s). ... You may specify one to three fields. ... Note: sexagesimal positions are entered in the same fashion, but a single field is decimal hours or degrees (h.h or . ...

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To enter a command type its name followed by any options and arguments that you want the command to have. Leave one or more spaces between the command name, its options and arguments. If necessary you can continue the command onto another line. Correct mistakes by using the <Delete> or <BackSpace> key to back up along the command line and correct it. ... Quoting command arguments . Entering more than one command . ... Command name completion . Editing the command line . ...

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Isaac Newton on the British pound note . ... 1) In the absence of forces, a body at rest will stay at rest, and a body moving at a constant velocity in a straight line continues doing so indefinitely. 2) When a force is applied to an object ("body"), it accelerates in the direction of the force. ... The second law gives an explicit formula, and hence is the one most useful. ... Mach argued that Newton's laws boil down to one law: . ... Mass and force are now readily derived. ...

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... On Sunday, April 13 (103/22:21:08 GMT) HST entered Zero Gyro Sun Point Safemode due to system momentum failing in response to a stalled gyro 3. ... The gyro 3 motor current began to increase at 103/22:18:30 GMT and stabilized at 330 mA approximately 90 seconds later. ... At 103/23:51:28 GMT gyro 3 was command on and after the expected turn-on spike saddled to a reasonable motor current at a nominal level. ... During the Zero Gyro Sun Point Safemode all subsystems reported nominal performance. ...

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... By the time Isaac Newton entered college, the scientific revolution of the 17th century was well underway. ... Men like Copernicus, Kepler, Galileo, and Descartes had all helped develop a new view of nature. ... Plato is my friend, Aristotle is my friend, but my best friend is truth." ... Isaac Newton was born on Christmas Day, 1642, the same year Galileo died. ... He was one of the most creative geniuses the world has ever seen and to many people the greatest scientist who ever lived. ...

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Astronomy Picture of the Day . The Moon Entering Earth s Shadow . ... 9.10.2015 . ... Credit Copyright: Thodoris Tzalavras Explanation: On September 27/28, from all over the planet's nightside moon watchers enjoyed a total lunar eclipse. ... Entering Earth's shadow, the Moon grew dimmer and its moontrail narrower as the eclipse progressed. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: lunar eclipse . Publications with words: lunar eclipse . ...

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... 22.Reference Frames . ... Inertial Forces . 23a. The Centrifugal Force . ... The other case of a moving frame of reference studied here is an accelerated frame of reference. ... The roller-coaster car, however, is undergoing various accelerations, and as a rule, when we try to apply the laws of motion inside an accelerated frame of reference, extra forces enter the picture, known as inertial forces. ... That is the inertial force acting in the frame of the accelerating airplane. ...

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Software Forum Message . ... Astronomy Software Discussion | ... Starry Night Pro Plus 6 - How Do I Enter Large Asteroid Database . ... The starry night pro asteroid.txt file is confusing. ... I have downloaded a page of Near Earth Asteroids from the Nasa website but I'm not sure what format starry night requires. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... Use the "Browse" button above to find the "File to upload" on your local computer. ... For the "Name attachment as:" field, enter the name you prefer the file to have once it has been uploaded to the site. ... After uploading, the wiki page you have uploaded to will automatically be opened for editing. ... To link to an attachment within the page it was uploaded to, simply enter Attach: filename.ext in the page text. ... All of the files uploaded to the Site.UploadQuickReference page are listed...

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... The following times are BST: Start oif Penumbral Phase (P1) Barely noticeable): 02h 05m 25s Start of Umbral Phase (U1): 03h 02m 51s Start of Total Phase: (U2) 04h 13m 49s Mid Eclipse: 04h 40m 10s End of Total Phase: (U3) 05h 06m 31s End of Umbral Phase (U4): 06h 17m 29s Duration of Totality is just 52 mt 42s, and the sky will be brightening with dawn twilight towards the end of totality, especially for observers in the North-east. ... 7° 00'; 225° End Totality 1° 48'; 232°. ... Terry Moseley . ...

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ArdlibDataPath,s,a, $ASCDS_CALIB ,,, Directory containing data files GENERIC_EFFAREA_ FILE ,f,a, xrt_ea_v2_0.fits ,,, Enter effective area file GENERIC_VIGNET_ FILE ,f,a, /dev/null ,,, Enter vignetting file AXAF _EFFAREA_ FILE _0001,f,a, CALDB ,,, Enter AXAF eff-area file 0001 AXAF _EFFAREA_ FILE _0010,f,a, ...

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The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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