This colorful display shows tiny differences (or "anisotropies") in the Cosmic Microwave Background (CMB) over the entire sky. The average temperature is just 2.73 kelvins (2.73 degrees Celsius above absolute zero), and the temperature differences span mere millionths of a degree. ... Until now, part of the Milky Way's motion inferred from the variation in the CMB was unexplained. Astronomers have discovered that the Milky Way and neighboring galaxies are being pushed from the Local Void. ...

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Astronomy Picture of the Day . ... B.J. Mochejska , J. Kaluzny ( CAMK ), 1m Swope Telescope Explanation: This color "picture" of globular star cluster M55 may not look like any star cluster you've ever seen. ... In the picture, a Color Magnitude Diagram (CMD), M55's individual stars are represented as dots whose color indicates relative temperature, red (cool) to blue (hot). ... Publications with keywords: color - magnitude - diagram - cmd - M 55 - star - stellar evolution . ...

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• Астронет > M55 Color Magnitude Diagram
• XWare > APOD

... NICMOS Data Handbook > Chapter 4: Anomalies and Error Sources > 4.6 Flat Fielding . 4.6 Flat Fielding . ... NICMOS flat fields show response variation on both large and small scales. ... The flat-field variations are due also to a strong function of wavelength. ... That paper describes methods for constructing color-dependent flat-field reference files, and provides IRAF scripts for doing so (currently applicable to Cycle 7 and 7N data, but see the NICMOS Web page for updates on this script). ...

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• Spitzer SAGE Survey of the Large Magellanic Cloud. II. Evolved Stars and
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• GRB 9900712

... The mouse pointer is represented on the screen by a small bitmap called the cursor . ... GdkWindow* gdk_window_get_pointer (GdkWindow* window , gint* x , gint* y , GdkModifierMask* state ); . ... It is possible to grab the pointer, which means that all pointer events will go to the grab window for the duration of the grab. ... gint gdk_pointer_grab (GdkWindow* window , gint owner_events , GdkWindow* confine_to , GdkCursor* cursor , guint32 time ); . void gdk_pointer_ungrab (guint32 time ); . ...

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• HTML Tag Reference
• IRAS Small Scale Structure Catalog
• HyperLEDA documentation: compilation of Color index (a112)

... AAS link ] . ... Our internal perspective makes it difficult to determine the spiral structure of our own galaxy. ... H I absorption, on the other hand, traces colder, denser gas that should be more confined in discrete clouds and perhaps discrete spiral arms. In addition, H I self-absorption (HISA) requires background H I emission at the same velocity as the foreground absorbing gas, thus introducing a much-needed constraint on the large-scale sightline geometry and kinematics. ...

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• Cold Galactic H I in the First and Second Quadrants
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• H I Midplane Poster for the 201st Meeting of the AAS, January, 2003

Stellarium 0.12.3 . ... Classes . ... ClassљList . ... TuiNodeColor Class Reference . ... voidљ . ... TuiNodeColor (const QString &text, QObject *receiver, const char *method, Vec3f defValue, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... virtual TuiNodeResponse љ . ... TuiNodeEditable (const QString &text, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... TuiNode (const QString &text, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... virtual TuiNode *љ . ... virtual voidљ . ... parent = NULL , . ...

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• Stellarium: Supernova Class Reference
• Stellarium: Quasar Class Reference
• Stellarium: Pulsar Class Reference

... Click here to go directly to the Orion Nebula Images. ... Copies of individual figures from this paper are available from John Bally . ... Figure 1: The core of the Trapezium showing the four energetic massive stars and a plethora of Sun-like stars with surrounding extended emission. ... Click to download figure in jpeg format. Click to download figure in tiff format. ... Figure 3: A gallery of star-disk systems in Orion's Trapezium. ... To Doug Johnstone's Scientific Home Page . ...

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• Ida - Galileo
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• Astronomy HyperText Book: Stellar Clusters
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We present the results of our observations of the white-light corona in polarized light performed at Criciuma eclipse, Brazil. During the observation of 3.11.94 we have made five couple of pictures of the solar corona in polarization light. ... Koutchmy S., Molodensky M., Starkova L., Ershov A., Matsuura O .: ... Molodensky M., Starkova L., Koutchmy S., Ershov A .: ... Koutchmy S., Molodensky M.M., Starkova L.I . ... Koutchmy S., Molodensky M.M., Starkova L.I. Koutvitsky V. and Ershov A . ...

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... The Advanced Visual Systems (AVS) has been used to explore lines of sight through the complex geometry of the Green Bank Telescope (GBT). Perspective images computed by AVS from geometric descriptions of the components of the telescope have been used when selecting locations for the installation of laser rangefinders and when checking geometrical relationships along the optical path. ... The AVS ``camera'' could be commanded to look from any location in the scene toward any another location. ...

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• The VizieR System for Accessing Astronomical Data
• ADASS 2003 Conference Proceedings
• A New PROS Task for Calculating HRI Source Intensities or Upper Limits

... Duchamp | ... Top | Duchamp is a solution to this problem of three-dimensional source finding. ... A list of the detections and their properties, as well as the input parameters that were used. [text file] . ... It can be downloaded in source format, in a gzipped tar archive. ... Changes from the previous version can be seen here (this file is included in the tar archive), while the archive files and documentation from the previous release versions are here , if you are really interested. ...

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• ATNF Daily Astronomy Picture
• immerge
• ATNF Colloquium

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

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• Emu and Egg! The Milky Way from the Southern Cross to Scorpius seen above the
• Color-Magnitude Diagram of a Milky Way Satellite Galaxy

... Circle area is proportional to the number of tweets + retweets tweets retweets . Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS221 by number of friends that also tweeted about AAS221 . ... The top/left position is for the user with the largest number of followers, and the bottom/right is for the smallest number of followers. by number of followers that also tweeted about AAS221 . ...

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• A matrix of tweets from #AAS223
• The Diffuse X-Ray Background
• Starspots

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. August 11, 1998 . Sun Dance . ... Explanation: Hot gas dances across the surface of the Sun in this picture from the orbiting TRACE satellite . The temperature of the gas is color coded so that blue represents hundreds of thousands of Kelvin , while red represents extreme temperatures in the millions of Kelvin. ... About APOD > . ...

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• APOD: 2001 February 23 - M55 Color Magnitude Diagram
• APOD: February 25, 1998 - The Solar Neighborhood
• APOD: 2002 May 23 - N132D and the Color of X-Rays

... The spatially resolved structure near the hydrogen emission H line was found in the spectrum taken with the BTA/SCORPIO in June, 2013. ... The fragment of the Nova V1494 Aql spectrum is shown in Fig.1. ... The Nova V1494 Aql has passed the stage of the supersoft X-ray source (SSS) in the period between 218 and 516 days after the visible light maximum (Schwarz et al., ... The spectrum of Nova V1494 Aql taken on 2013 June 9 with BTA/SCORPIO . ... The vertical lines are the lines of night sky emission....

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• Solar system sector, archive 1993

The Mars Flag has a different design on the reverse side. obverse side of flag . ... The orbit lines on the obverse cross the Sun on the lower half of the flag and appear to go behind the Sun on the upper half of the flag. The reverse side has the orbits lines continuing around the Sun on the upper half of the flag. ... The Mars Flag reverse side is a continuation of the obverse side and not just a different design on the back and not a mirror image of the obverse. Main Flag Background Color . ...

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• ASP: The New and Improved Hubble Space Telescope
• ASP: Cosmic Collisions
• ASP: Making Your Own Astronomical Camera

... Co-ordinate systems description . Directories structure . The file names' construction . The file set description . ... The orbital information for each month is presented in the separate directory. The INTERBALL orbital data are located on the STDA server, for each month in the separate subdirectory, which name consists from the year (YYYY) and month (MM) numbers. The Parent Directory of the Tail Probe orbital data is http://www.iki.rssi.ru/da/interball/tail/orbit/ . ...

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• STDA files
• Space Research Institute (IKI) Seminar
• The Polar Aurora

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The S un Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic ... Low mass stars live and die differently than high mass stars. ...

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. The UNIX file system is organised as a hierarchy of directories starting from a single directory called root which is represented by a / (slash). Imagine it as being similar to the root system of a plant or as an inverted tree structure. Immediately below the root directory are several system directories that contain information required by the operating system. The file holding the UNIX kernel is also here. UNIX system directories . Home directory . Pathnames .

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• About the Concepts menu
• Fill-Out Forms

... In asmooth at present sources can be removed and the local background interpolated over their positions. ... To create such a map, the user should supply asmooth , via the parameters withsrclistset and srclistset , with a list of sources produced by either eboxdetect or emldetect . ... For each source, asmooth calculates an elliptical boundary, being the locus at which the point spread function (PSF) of the source decreases to some constant value times the value of the local background. ...

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• Source detection limits
• Background Analysis
• Parameters