... 2008 December 1 . Massive Stars Resolved in the Carina Nebula . ... Explanation: How massive can stars be? ... Such was the case for two of the brightest objects visible in the open star cluster Trumpler 16 , located in the southern Carina Nebula . ... The Carina Nebula , home to unusually shaped dust clouds and the famous variable star Eta Carina , lies about 7,500 light years away toward the constellation of Ship's Keel ( Carina ). ... About APOD | ... A service of: ASD at NASA / GSFC . ...

... Credit: W. Pounds Explanation: It's clear who is the biggest star in this binary system. Based on recent results , this artist's vision of the double star Phi Persei , 720 light years away, shows a bright, rapidly rotating massive star surrounded by a disk of gas. A small companion star orbits 100 million miles away. ... Astronomers consider the ultimate fate of such mass-exchanging, interacting binary systems an open question and a challenge for present theories of stellar evolution . ...

... October 2, 1999 . Phi Persei: Double Star . ... Based on recent results , this artist's vision of the double star Phi Persei , 720 light years away, shows a bright, rapidly rotating massive star surrounded by a disk of gas. A small companion star orbits 100 million miles away. ... Ten million years ago the small companion was actually the most massive star in the system and because of its greater mass evolved into a giant star more quickly. ... About APOD > . ...

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... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

... If the mass of the collapsing star is more than three solar masses, however, no force can prevent it from collapsing completely to become a black hole. What is a black hole? Mini black holes . ... For Further Reading About Black Holes A black hole is a region of space in which the pull of gravity is so strong that nothing can escape. ... A black hole with a mass less than three solar masses would not form on its own; its gravity is too weak to cause it to completely collapse in on itself. ...

... Search News . ... By Publish Date . ... Categories . ... Radio Astronomy . ... News in Spanish . ... March 2012 . ... Apr 25, 2013 . ... Jan 08, 2013 . ... May 08, 2012 . ... Apr 18, 2012 . To see more news you can: . click on "next" or "Prev" on top right of this column ТљТљ . Use the "Search" features on the left column to search news by Keywords,ТљТљ . Тљby Publish Date, by Categories or search the Archives.ТљТљ . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

... Harald Ebeling, University of Hawaii . A Snapshot Survey of The Most Massive Clusters of Galaxies . Abstract . ... Stephan McCandliss, The Johns Hopkins University . ... HST Imaging of UV emission in Quiescent Early-type Galaxies . ... Distances to Eclipsing M Dwarf Binaries . ... SL2S: The Strong Lensing Legacy Survey . ... Hubble Investigation of Asteroid 21 Lutetia in Support of the Rosetta Mission Flyby . ... GO 11289: SL2S - The Strong Lensing Legacy Survey . ... Past weeks: . ...

... Stars . ... Cepheid variable stars have been known since the 18th century. ... Regularly brightening to a peak over days, weeks or months before fading these variable stars were remarkable curiosities to astronomers in past centuries.€а The term Cepheid is taken from the star Delta Cephei in the constellation of Cepheus, which was identified as variable€а in 1784 by the teenaged prodigy John Goodricke (1764-96). ... Tweets that mention Cepheids: Inconstant Stars which break the rules | ...

Next: The Number of Ejectors Up: Ejectors in Massive Binary Previous: Ejectors in Massive Binary . ... In Figure 10 we show possible evolutionary tracks of NS. ... After the mass exchange, only the helium core of the normal star is left (WR star), a separate system is formed (in some systems the NS has spiraled   completely into the center of its companion, and a Thorne-Zytkow object   is formed), and the NS again becomes a propeller   or an ejector. ...

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

... Posts tagged ?massive data? ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

... The Observatory is now also a principal point of contact for astronomy amongst the mass media (press, radio and television), playing a major role in the promotion of astronomy and public understanding of science both locally (i.e. within Armagh City and District and Northern Ireland) and abroad. ... These contacts frequently lead to articles or citations in the national and international press, and to sound-bites and media clips on radio and television. ... Northern Ireland local television . ...

... Star Atlas . ... stars . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Get to Know the Night Sky . ... Astronomers know the fate of Sun-like and massive stars, but what about the majority of stars т?? the M-class red dwarfs? Will they also become giants or just flicker out? ... RELATED TOPICS: STARS . ... Get instant access to subscriber content on Astronomy.com! ...

Astronomers have found a radio pulsar with a companion at least 11 times the mass of the Sun - the most massive pulsar companion known. The identity of the companion is uncertain: it may be a massive late-type (red) star, a massive but compact blue star, or possibly a black hole. ... The probability of this late-type star being there by chance, and not being the pulsar companion, is only about 1.3%," says team member Dr. Fernando Camilo of Columbia University. ... So what can the companion be? ...

... Measurement of the MASS detectors parameters with mass program January 24, 2015 [112707] . MASS/DIMM electronics. ... Turbina-core(D): Dimm User Guide. ... N.Shatsky, V.Kornilov, The revision of the MASS/DIMM star catalogue. ... О.Возякова, В.Корнилов, Н.Шатский, Новое программное обеспечение прибора MASS/DIMM. ... V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site. ...

Russian . ... text in Russian) . ... The Behaviour of the Bz Component of the Magnetic Field in Coronal Mass Ejections . ... Cooperation of IZMIRAN and Sternberg Astronomical Institute in the Study of the Sublimational Component of the Solar Coronal Radiation . ... Solar Wind and Magnetic Storms in the 24th Solar Activity Cycle . ... text in English) . ... The Solar Corona in the Light of TRACE Observations . ... Expeditions of Irkutsk Astronomers to Total Solar Eclipses in 1981--2012 . ...

Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...

Blackholes Discussion Forum . Forums: . ... black hole pump? - sleepvark - September 3, 2014 - 21:13 UTC . ... WHAT IS Fe1 neagative?This is dark matter..... - theoracle - January 27, 2009 - 19:11 UTC . ... hbar=e^2/e0c - garrydenke - June 7, 2005 - 14:05 UTC . ... black hole theory - astronomy124 - February 24, 2005 - 04:47 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...