M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

One of my on-going research interests concerns the dust shells of proto-planetary nebulae or PPNs (also called pre-planetary nebulae, transition objects, and post-AGB objects in the literature; the latter term also applies to a wider selection of objects such as RV Tauri stars), especially the carbon-rich ones that show the unidentified "21 micron' emission feature. ... I am working to find a complete sample of proto-planetary nebulae in these satellite galaxies from the millions of detected stars. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... casa::LELCoordinates . ... LELCoordinates ( LELLattCoordBase *coordinates) . Construct the object from the given letter class. ... This is via the LELCoordinates member function coordinates which returns a reference to the letter base class LELLattCoordBase . For example, if the actual letter class object was LELImageCoord , one has to then cast the reference returned by LELCoordinates::coordinates() to an LELImageCoord . ... const LELLattCoordBase & casa::LELCoordinates::coordinates . ...

... This chapter documents all the JavaScript objects, along with their methods and properties. ... Full entries for each object appear in alphabetical order; properties and functions not associated with any object appear in Chapter 2, "Top-Level Properties and Functions." ... Tables included in the description of each object summarize the object's methods and properties. Full entries for an object's methods and properties appear in alphabetical order after the object's entry. ...

... Hoags Object: A Strange Ring Galaxy . ... Credit Copyright: R. Lucas ( STScI / AURA ), Hubble Heritage Team , NASA Explanation: Is this one galaxy or two? ... How Hoag's Object formed remains unknown, although similar objects have now been identified and collectively labeled as a form of ring galaxy . ... The above photo taken by the Hubble Space Telescope in July 2001 revealed unprecedented details of Hoag's Object. ... Publications with words: ring galaxy . ... Ring Galaxy AM 0644 741 from Hubble ...

Today's APOD | Title Search | Text Search | In the 1700s, Charles Messier created a list of bright and interesting sky objects. Those Messier objects that have appeared on APOD and are linked below. Many Messier objects have not appeared on APOD, however, and so submissions of good color pictures of them are welcomed. ... Archive | Index | Search | ... About APOD | ... NASA Technical Rep.: ... Specific rights apply . A service of: LHEA at NASA / GSFC . ...

Next: ZGSC (Compressed GSC) and XSKYMAP . ... This is a preliminary report on an investigation of the quality and properties of plates digitized during creation of the Guide Star Catalog (GSC). The results will be vital for reclassifying GSC objects. ... Many objects are measured on more than one plate, and thus have multiple catalog entries. ... Among the shortcomings of the GSC are: biased magnitudes and incorrect classifications for certain objects, presence of artifact objects. ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO . ... Survey Telescopes . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... The oddly shaped Pencil Nebula (NGC 2736) is pictured in this image from ESOтАЩs La Silla Observatory in Chile. This nebula is a small part of a huge remnant left over after a supernova explosion that took place about 11 000 years ago. ...

Stellarium 0.12.3 . ... Classes . ... LabelMgr Class Reference . ... intљ . labelObject (const QString &text, const QString &objectName, bool visible=true, float fontSize=14, const QString &fontColor="#999999", const QString &side="E", double labelDistance=-1.0, const QString &style="TextOnly") . ... labelScreen (const QString &text, int x, int y, bool visible=true, float fontSize=14, const QString &fontColor="#999999") . ... setLabelText (int id, const QString &newText) . ... virtual voidљ . ...

GTK+ / Gnome Application Development . ... Gnome . ... See the section called Session Management in the chapter called Gnome Application Basics for more information. ... GnomeDEntryEdit is a very specialized object; it is a sort of "widget manager" that creates and keeps track of two child widgets, an "easy" and an "advanced" page. The two pages combine to let the user edit a Gnome .desktop entry, as described in the section called .desktop Entries in the chapter called Creating Your Source Tree . ...

... Radiation mechanisms of astrophysical objects: classics today . ... The meeting will be held in the Conference Hall of the historical building of the Saint-Petersburg State University . It is located in the very center of the Saint-Petersburg city close to the most sights, including the Hermitage, the Peter and Paul fortress being the cradle of the city, and the famous Neva-embankment. ... Detailed information on the possible ways to reach the conference venue is given here . ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

General Forum Message . Forums: . ... Deep Space Object Galaxy Near M13 . ... Can anyone tell me if there is a DSO (likely a galaxy) near M13? ... The reason it interests me is that I drew a sketch of M13 years and years ago while observing - and that object is one of the handful of 'stars' that I drew. ... 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" . ...

... The spectrograph is designed for detailed studies of extended objects - galaxies and HII regions with a moderate spectral resolution. ... The updated Universal Astronomical Grating Spectrograph (UAGS, Carl Zeiss Jena) with a fast Schmidt camera is a base of the Long Slit Spectrograph (LSS). A cryostated Charge Coupled Device (CCD) detector is built inside the Schmidt camera. ... It was realized in the Laboratory of Spectroscopy and Photometry of Extragalactic Objects of SAO RAS. ... Camera . ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

The picture above was made with this demo POV file and this hand shower object POV file . This is three objects: a hand shower head, a wall mount bar, and a connecting hose. This is one of my least detailed objects; there's not even a clip to mount the hand shower to the sliding bar, it just floats. The hand shower itself does look pretty stylish, very rounded and cool looking. ... The showerhead is about yay big. ... WARNING: This POV object is based on a real object. ...

... Documentation for the Python objects defined by the project is divided into separate pages for each package, module, and class. The API documentation also includes two pages containing information about the project as a whole: a trees page, and an index page. ... A description of the package. ... A summary of the classes defined by the package. ... The module contents frame contains a list of every submodule, class, type, exception, function, and variable defined by a module or package. ...

... self-absorption - the absorption of light shining on an object by a process similar to that which produced the light originally; if a cloud emits less light than it absorbs from other clouds behind it, this net loss of light, termed self-absorption , causes the foreground cloud to appear darker than the background field (the term is from spectroscopy, where small absorption dips sometimes occur in larger emission lines, making the latter look as if it is absorbing part of itself) . ... HISA Main ...