... 2014 September 4 . Cloud, Clusters and Comet Siding Spring . ... Explanation: On October 19th, a good place to watch Comet Siding Spring will be from Mars . Then, this inbound visitor (C/2013 A1) to the inner solar system, discovered in January 2013 by Robert McNaught at Australia's Siding Spring Observatory, will pass within 132,000 kilometers of the Red Planet. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

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• APOD: 2009 September 14 - The Center of Globular Cluster Omega Centauri
• APOD: 2000 September 22 - M55: Globular Star Cluster
• APOD: 2004 September 18 - M55: Globular Star Cluster

... 2000 September 10 . White Dwarf Stars Cool . ... WFPC2 , HST , NASA . Explanation: Diminutive by stellar standards , white dwarf stars are also intensely hot ... but they are cooling. ... Here, researchers have discovered a large concentration of white dwarf stars (circled above). ... Studying how these stars cool could lead to a better understanding of their ages, of the age of their parent globular cluster , and even the age of our universe . ... About APOD | ... NASA Technical Rep.: ...

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• APOD: September 22, 1998 - M61: Virgo Spiral Galaxy
• APOD: September 17, 1999 - M3: Half A Million Stars
• APOD: 2000 September 21 - XZ Tauri System Ejects Gas Bubble

... 10.09.2000 . ... WFPC2 , HST , NASA Explanation: Diminutive by stellar standards , white dwarf stars are also intensely hot ... but they are cooling. ... This Hubble Space Telescope image covers a small region near the center of a globular cluster known as M4 . ... Publications with keywords: dwarf galaxy - M4 - white dwarf - globular cluster . Publications with words: dwarf galaxy - M4 - white dwarf - globular cluster . ... Globular Star Cluster M3 . ... M3: Inconstant Star Cluster . ...

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• XWare > APOD
• Hot Gas In Hydra A
• Tombaugh 4

... Kalirai and Harvey Richer of the University of British Columbia led the study, which began as an investigation of a globular star cluster in the Milky Way galaxy known as NGC 6397. ... Within the population of stars and galaxies behind NGC 6397, the Hubble image revealed a large elliptical galaxy that contains several hundred globular clusters. ... In fact, a single giant star in NGC 6397 appears 10 million times brighter than one of the distant globular clusters. ...

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• Black Holes in Globular Clusters
• HST this week: 268
• HST this week: 246

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

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• The Galaxy Gallery: Messier Objects

A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...

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• The Pleiades
• Arecibo Radar Discovers Triple Near-Earth Asteroid

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Other Galaxies . ... Space Flight . ... October . ... Posted on November 19, 2010 | 1 Comment Could HIP 13044 b be the strangest exoplanet yet found? ... Continue Reading.. ... 2 Comments Using the Hubble Space Telescope, astronomers have been looking ten thousand years into the future of the vast globular cluster Omega Centauri. ... Posted on October 4, 2010 | 1 Comment Gorgeous! ... Posted on September 27, 2010 | ...

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• stars | Astronotes - Part 6
• Comets And Asteroids | Astronotes
• Hubble shows us a spectacular star cluster | Astronotes

... NEWS . This is a list of new entries to the ESO Web Site within the last two months, August 2005 and September 2005. Subscribers to What's New in the ESO Web Notifier get an automated message of recent changes in the ESO Web . An archive of what's new entries is available. ... Take a look at: http://www.eso.org/observing/proposals/ . ... ESO 33/06 - Science Release: Astronomers, using ESO's Very Large Telescope, have for the first time made the link between an X-ray flash and a supernova. ...

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• Wide-field view of the newly discovered globular cluster VVV CL001
• Visible/infrared comparison views of the newly discovered globular cluster VVV
• VISTA view of the newly discovered globular cluster VVV CL002 close to the

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

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... Posts tagged ?globular cluster? ... Posted by hlee . Someone emailed me for globular cluster data sets I used in a proceeding paper, which was about how to determine the multi-modality (multiple populations) based on well known and new information criteria without binning the luminosity functions. ... On the other hand, obtaining globular cluster data sets was easy because of available data archives such as VizieR . ... Category: arXiv , Astro , CHASC , Data Processing , Imaging , Jargon , Stars | ...

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• The AstroStat Slog Blog Archive my first AAS. IV. clustering
• The AstroStat Slog LF
• The AstroStat Slog 2008 September

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Portrait of Sir William Herschel (1738-1822) Royal Astronomical Society . Probably the most famous astronomer of the 18th century, Sir William Herschel discovered, in addition to the planet Uranus, many new nebulae, clusters of stars and binary stars. ... Other Herschel Family Portraits . Mirror by Herschel . Return to A Short History of Armagh Observatory . Last Revised: 2009 November 23rd . ...