... Skygazers recently following Comet Holmes have probably also chanced across this lovely starfield, not far from the comet on the sky in the constellation Perseus. Some 7,000 light-years away, this pair of open or galactic star clusters is an easy binocular target and is visible to the unaided eye from dark sky areas. ... A Complete Solar Cycle from SOHO . ... The unexpectedly bright Comet 17P/Holmes continues to grace northern skies as a naked-eye addition to the constellation Perseus. ...

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... Editor's choices for the most educational Astronomy Pictures of the Day about Earth's Moon: . ... Explanation: Our Moon's appearance changes nightly. This time-lapse sequence shows what our Moon looks like during a lunation , a complete lunar cycle. ... APOD: 2003 May 22 - Eclipsed Moon Montage . Explanation: After watching this month's lunar eclipse, amateur astronomer Sebastien Gauthier carefully composed this montage of telescopic images of the Moon sliding through planet Earth's shadow. ...

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• APOD: 2003 November 21 - Sunset Moonlight
• APOD: April 2, 1997 - A Complete Aurora
• APOD: 2011 June 16 - Mercury's Surface in Exaggerated Color

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . ... Space Flight . ... Earth Satellites . ... February . ... By admin February 16, 2012 Posted in: Moon . A roll?n?rock can be seen in this image from NASA?s Lunar Reconnaissance Orbiter. ... This rolling stone gathered no moss but left its track in the regolith until the slope levelled off and it slowed to a halt. ... Then the Moon shone down on an Earth that€а looked superficially familiar to that of today but was oddly different. ...

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• Kepler-10c: the First Mega-Earth | Astronotes
• March Sky Wonders | Astronotes
• Astronotes | Armagh Planetarium's astronomy news from across the Universe -

HUBBLE SPACE TELESCOPE DAILY REPORT #832 PERIOD COVERED: 0800 EST Daily Status Report as of 057/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed Three Sets of PC 3603 (Snapshot of Protoplanetary Nebulae) The Planetary Camera was used to make observations of the protoplanetary system CPD 5D573. ... No problems were reported. 1.5 Completed Two Sets of WFC 4713 (WF/PC Calibration: Internal; Delta Flats) The Wide Field Camera was used to make a series of internal flat observations. ...

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• http://www.stsci.edu/ftp/observing/status_reports/old_reports_93/hst_status_07_01_93
• http://www.stsci.edu/ftp/observing/status_reports/old_reports_96/hst_status_02_29_96
• http://www.stsci.edu/ftp/observing/status_reports/old_reports_01/hst_status_09_20_01

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

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• Jupiter Moon Callisto
• Educator's Guide to Impact Craters
• What is a Comet?

... Meta Index / Home Page / User-visible functionality The OAL provides functionality to expand a pair of two or a tuple of four identifiers into a valid ODF data set name which can then be used to physically open the set, e.g. with the dal open method. The corresponding OAL routine receives a string which is either a valid data set name or of the form . odf(<instr>, <mode>[, <expnr>, <ccdnr>[, scheduledFlag]]) . ... For data sets for which the field is not applicable a value of 0 must be given. ...

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• User-visible functionality

Next: X--ray Quiet PMS Up: Contents Previous: Fits to Evolutionary . The X--ray selected PMS candidates may not constitute a complete list. The primary factor is the sensitivity limit, complicated by the vignetting in the field of the PSPC which was used to make the source list. ... In order to better understand the completeness of the X--ray data, photometry of every star in both regions was undertaken. ... The X--ray quiet sources are distributed evenly across the field (see Figure 8 ). ...

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• The AstroStat Slog Blog Archive [SPS] Testing Completeness
• common tcsh completions
• The AstroStat Slog incompleteness

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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• Dark universe mission blueprint complete | Astronomy.com

The apparent path of the Sun across the sky. ... The path of the Sun across the celestial sphere is very close to that of the planets and the moon. ... In one year, as the Earth completes a full circuit around the Sun (drawing above), the Earth-Sun line and its continuation past Earth sweep the entire plane. ... Since the Sun and Earth are in the plane of the ecliptic, the line is automatically in that plane too; if the moon is also on the same line, it must be in the plane of the ecliptic as well. ...

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• Titan Press Release
• Jupiter Moon Callisto
• The Sun's Corona

... On the morning of Thursday, 26 February, amid the Gal pagos Islands, the Sun will fade from view. Not the culmination of ancient prophecy, but none less mystical, Earth's small Moon will be executing a slow slide past the enormous Sun. ... And anyone living in southern North America, Central America, northern South America, or on islands and cruise ships in the Caribbean Sea will, weather permitting, have the opportunity to experience the wonder of a solar eclipse. ...

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• ASP: Guest Observer
• ASP: The Upcoming Total Solar Eclipse!
• ASP: The Magellan Spacecraft at Venus

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions

I-GALFA Survey Coverage Complete . ... The upper figure shows positions in equatorial coordinates: right ascension and declination, which are like extensions of the Earth's longitude and latitude coordinates on the sky. The lower figure shows positions in Galactic longitude and latitude, where Galactic latitude = 0 is the Galactic equator, or the plane of the Milky Way, and the center of the Galaxy lies in the Galactic plane in the direction where the Galactic longitude = 0. ... I-GALFA Main | ...

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• GALFA - H I Projects

Sky watchers will witness a total lunar eclipse in the early hours of Thursday 21st February, subject to weather conditions. For a total lunar eclipse to occur, the Moon in its orbit around the Earth must pass fully into the cone-shaped shadow of the Earth in space. ... The Moon does not usually go completely dark because the Earth's atmosphere refracts direct sunlight around the edge of the shadow on to the Moon's surface. This causes the Moon to turn a dark, blood-red or copper colour. ...

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• First Total Lunar Eclipse of New Millenium
• Armagh Astropark
• ASTRONOMICAL PHENOMENA FROM MARS

Filename completion is only available if the the environment variables EDITOR and/or VISUAL are set to either emacs , gmacs or vi . For example: EDITOR=emacs . ... To complete a file or directory name with emacs or gmacs set press the ESC key twice. ls -l on<ESC><ESC> line_help . If the filename is not completed enter more characters until the filename can be uniquely identified. ... To complete a file or directory name with vi set press the \ (backward slash) key. ls -l on\ line_help . ...

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• Filename completion
• Filename completion with the C shell
• Filename completion with the TC shell

Next: Leading Spaces Up: Interactive environment Previous: Interactive environment Index . Tab completion is enabled for all function names. If you type the first few letters of a function name, then type <TAB> the function name will be auto completed if it is un-ambiguous, or a list of possibilities will be given. Auto-completion works for the user object names as well as function names and even file names It does not work for for function arguments. ...

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• Archive of VLBI Observations Majordomo List
• PPTA Dashboard | Projects
• Techs in Paradise, Hawaii 2004 (The Complete Images)

ESO Phase 3 Data Release Description Please start from this template when preparing the documentation for your ESO Phase 3 data release. ... Finally, the release description will be published as submitted - without further editing by ESO - to support the user community in utilizing the data. ... Please indicate if this is a catalogue data release. ... Data Reduction and Calibration Please address the following questions for scientific catalogue data, particularly in case of source catalogues: . ...

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• ESO - Completion of ALMA Early Science Cycle 1 and start of Cycle 2
• A More Complete Picture of the Blazar Class
• ESO - Completion of Atacama Compact Array

... 28Mingaliev+ J/other/BSAO/46.28 Complete sample of PMN survey spectra (Mingaliev+, 1998) ============================================================================ Simultaneous spectra of complete sample of sources from the PMN survey Mingaliev M.G., Botashev A.M., Stolyarov V.A. 200mJy at the PMN Survey frequency 4.8GHz; 0h =10(deg} to exclude the galactic plane. ... rms uncertainty on S11.2GHz 23- 26 I4 mJy S7.7GHz ? ... rms uncertainty on S2.3GHz 58- 62 I5 mJy S0.96GHz ? ...

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• AGN, Condon, Condon, Hazard
• CCD Technical Note
• THE MOLONGLO REFERENCE CATALOGUE/1Jy. III

... LWN.net Weekly Edition for March 18, 2004 . ... LWN.net FAQ . ... This article is part of the LWN Porting Drivers to 2.6 series . Completions are a simple synchronization mechanism that is preferable to sleeping and waking up in some situations. ... When your driver begins some process whose completion must be waited for, it's simply a matter of passing your completion event to wait_for_completion() : . ... void complete(struct completion *comp); void complete_all(struct completion *comp); . ...

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... Gallery . ... The Common Room roof is completed . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: The Common Room roof is completed . Description: NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ... The Common Room roof is completed NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ...

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• Completed dome
• retaining wall complete
• The film version of the UKST surveys, completely trashed. Like the books in the

... Main research and development work completed in 2011 and ready for implementation . ... It is found that the 1.8 MeV line is concentrated in the Galactic disk, whereas positron annihilation takes place in the central region of the Galaxy. ... Main research and development work completed in 2010 and ready for implementation . Main research and development work completed in 2009 and ready for implementation . Main research and development work completed in 2008 and ready for implementation ...

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• Main results of the experimental and theoretical research completed in 2010
• Main results of the experimental and theoretical research completed in 2011
• Main research and development work completed in 2009 and ready for