... 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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• The Large Magellanic Cloud, open cluster NGC 1664, and reflection nebula NGC
• The Double Cluster in Perseus | Astronomy.com
• New VISTA image of star cluster 47 Tucanae | Astronomy.com

... Jupiters Clouds from Cassini . ... Gas giant Jupiter is the solar system's largest world with about 320 times the mass of planet Earth. ... Moon River . ... In this colorful telephoto view from near Quebec City, Canada the Moon is nestled just above the wide St. Lawrence River. ... A wonder of planet Earth's southern sky, star cluster Trumpler 14 lies about nine thousand light-years away in the Carina complex -- a rich star forming region at the edge of a giant molecular cloud. ...

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Astronomy Discussion Forums . ... What I See . ... Follow Ups | Post Message | ... I have observed the Double Cluster, the BeeHive cluster and other open and various Globular Clusters. My main problem with my 114mm reflector is in its inabliity to bring deep sky objects. ... www.astronomy.net . About Astronomy Net | Advertise on 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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• Saturn And Others - an Astronomy Net Observation_reports Forum Message
• PU-TAIN !! - an Astronomy Net Observation_reports Forum Message
• Detailed Moon Map For HandMap And Handheld PCs (Palm Or Pocket) - an Astronomy

... STScI-PF95-18 RELEASE DATE: March 31, 1995 HUBBLE TRACKS JUPITER STORMS NASA's Hubble Space Telescope is following dramatic and rapid changes in Jupiter's turbulent atmosphere that will be critical for targeting observations made by the Galileo space probe when it arrives at the giant planet later this year. This Hubble image provides a detailed look at a unique cluster of three white oval-shaped storms that lie southwest (below and to the left) of Jupiter's Great Red Spot. ...

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• SWXCS

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

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• NG70-SM Altazimuth Refractor
• Meade Series 4000 Color Filter Set #1
• Meade Series 4000 Color Filter Set #3

Stellarium 0.12.3 . ... FileљStructure . ... SphericalRegion . DrawParams . ... SphericalRegion::DrawParams Struct Reference . Parameters specifying how to draw a SphericalRegion . More... #include < StelSphereGeometry.hpp > . DrawParams (class StelProjector *projector) . Construct DrawParams with default parameters and specified projector. ... Do not subdivide the region to follow projection distortions. ... class StelProjector * SphericalRegion::DrawParams::projector_ . ...

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• Stellarium: ScreenImageMgr Class Reference
• Stellarium: Nebula Class Reference
• Stellarium: LabelMgr Class Reference

... 2011 December 6 . Jupiter Rotation Movie from Pic du Midi . ... Many interesting features of Jupiter's enigmatic atmosphere , including dark bands and light zones, can be followed in detail. A careful inspection will reveal that central clouds rotate slightly faster than clouds toward the poles. ... Since hydrogen and helium gas are colorless, and those elements compose most of Jupiter's expansive atmosphere , what trace elements create the observed colors of Jupiter's clouds remains unknown. ...

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• APOD: 2007 December 7 - Double Cluster in Perseus
• APOD: 2014 October 8 - NGC 6823: Cloud Sculpting Star Cluster
• APOD: 2002 July 22 - Open Cluster NGC 6520 from CFHT

... casa::MeasBase< Mv, Mr > . ... Base class for all measures. ... MeasBase (const MeasBase < Mv, Mr > &other) . ... MeasBase (const Measure *dt) . ... Check the type of derived entity. virtual void . ... template<class Mv, class Mr> . ... virtual void casa::MeasBase < Mv, Mr >::assured . ... virtual const MeasValue * casa::MeasBase < Mv, Mr >::getData . ... Get reference. template<class Mv, class Mr> . ... virtual void casa::MeasBase < Mv, Mr >::print . ... virtual void casa::MeasBase < Mv, Mr >::set ...

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• casacore: casa::LinearXform Class Reference
• casacore: casa::PoolStack< T, Key > Class Template Reference
• casacore: casa::SpectralFit Class Reference

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

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• Detailed view of the Prawn Nebula from ESO's VST | ESO
• Mounted image 198: The star cluster NGC 2100 in the Large Magellanic Cloud |
• Detailed annotated view of a section of the Large Magellanic Cloud | ESO

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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The File System . ... Files are identified to the system using a unique identifier called the file specification , which can include disk and directory names as well as node names for accessing files across the network. On VMS systems, file names are usually thought of as having three parts *1 : the filename , the file type , and the version number . ... The full file specification, with node name, device, directory, file name, file type, and version being specified is shown in Figure 3.1 . ...

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• CSPICE Routines: SZPOOL_C
• Remote Windows
• Surface Brightness Profiles

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . Planets . ... Monthly Sky Notes . ... February . ... The ringed planet will be quite bright, but unlike Jupiter it will not be the brightest point of light in the sky, this accolade will return to Sirius which is the brightest star in our night sky in the constellation of Canis Major. ... Seven days later on February 18, the Moon will be in its full Moon phase. ... Tweets that mention Wonders of the February Night Sky | ... Astronotes . ...

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• Young Stars in the Small Magellanic Cloud | Astronotes
• Our Galaxy | Astronotes - Part 5
• September 2012 Night Sky Wonders | Astronotes

lsst.coordConv љ unknown . ... PVT . ... coordConv::PVT Class Reference . include < pvt.h > . PVT (double pos , double vel , double t ) . ... operator+= ( PVT const &rhs) . ... operator+= (double const &rhs) . ... operator+ ( PVT const &rhs) const . ... operator+ (double const &rhs) const . ... Definition at line 18 of file pvt.h . ... Definition at line 152 of file pvt.h . PVT coordConv::PVT::operator* . ... Definition at line 132 of file pvt.h . ... Definition at line 108 of file pvt.h . ...

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• TUI:Telescope:User Catalogs
• lsst.tcc: tcc::PVAJT Class Reference
• lsst.coordConv: coordConv::PVTCoord Class Reference

... Meta Index / Home Page / Output Files / Summary File specification from There will be 6 instrument details records, one for each instrument, following the file details record. ... After each instrument details record there will be n exposure records, where n is the number of exposures during the observation for that instrument. ... Number of exposures . ... Identifies the record as an Instrument Details Record . ... If the instrument was inactive then this value is zero and no exposure records...

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• Using Target Visibility Checker, V8.0
• Output Files

Armagh, 2nd May 2002. Saturn and Mars are at the top left, Venus is the very bright object and Mercury appears through the clouds. ... All five planets visible to ancient astronomers can now be seen in alignment in the western sky. ... Next is Venus, the brightest planet or "Evening Star", followed by Mars, a much fainter red planet, then Saturn (near the red star Aldebaran, the brightest star in Taurus), and finally, slightly higher in the sky, the largest planet Jupiter. ...

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• Grubb 10 inch Refractor
• Terry Mosely's Bulletins
• Armagh Observatory

... The idea of an ALFA Virgo Survey is very excited. We should go for full coverage of the Virgo cluster, that is 800 square degrees. ... To interpret and understand the results of such a survey will require a lot of complimentary data. In Milano, we have developed the Galaxy On Line Database Milano Network or GOLDMiNe . ... This site provides on line selection of multiwavelength data for galaxies in both the Virgo cluster and the Coma supercluster. ...

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• Details of Rotang
• The Pleiades
• Jodrell Multi-beam Virgo Survey

... Yes, Exploding Comet 17P/Holmes is one of the strangest things ever seen by astronomers - professional and amateurs alike. ... We also had some club members who received some Astronomical League awards...and we'd like to congratulate them! ... It is again a potluck, and is being held at the Masonic Temple in Galion ( 1252 State Route 598, Galion , OH 44833) Here's a map: Map of 1252 State Route 598 Galion, OH 44833-9367, US And, along with the party come RAS elections for 2008! ... Comet 17P/Holmes ...

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... java.lang.Object ij.gui.Roi ij.gui.Line . ... public class Line . ... int . ... protected double . ... Constructor Detail public Line (int ox1, int oy1, int ox2, int oy2) . Creates a new straight line selection using the specified starting and ending offscreen integer coordinates. public Line (double ox1, double oy1, double ox2, double oy2) . Creates a new straight line selection using the specified starting and ending offscreen double coordinates. public Line (int sx, int sy, ImagePlus imp) . ...

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• ImageStack (ImageJ API)
• ScrollbarWithLabel (ImageJ API)
• Interpreter (ImageJ API)

... This function can also be used for particular types of subtypes or kinds: KIND (0) integer KIND (0.0) floating point number KIND (.FALSE.) logical variable KIND ("A") string of characters There is an intrinsic function SELECTED_REAL_KIND , which returns the kind of the type REAL that has a representation with (at least) the precision and the exponential range requested. ... With the choice SELECTED_INT_KIND (5) all integers between (but not including the limits) -100 000 and +100 000 are permitted. ...

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• Visual effects
• Conformance: requirements and recommendations
• About the HTML 4.0 Specification

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

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• Home page of Dmitri Wiebe