... February 14, 1997 . NGC 1818: A Young Globular Cluster . ... Explanation : Globular clusters once ruled the Milky Way . Back in the old days , back when our Galaxy first formed, perhaps thousands of globular clusters roamed our Galaxy. ... There are few, if any, young globular clusters in our Milky Way Galaxy because conditions are not ripe for more to form. ... Pictured above is a "young" globular cluster residing there: NGC 1818 . ... About APOD > . ...

... Triton: Neptunes Largest Moon . ... So, looking toward the Sun, extreme ultraviolet cameras onboard STEREO B were able to record a stunning movie of a lunar transit (aka solar eclipse), as the Moon tracked across the solar disk. ... Stars, Dust and Nebula in NGC 2170 . ... Visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. ... APOD: 2007 February 24- X rays and the Eagle Nebula . ...

... February 21, 1996 . Millions of Stars in Omega Centauri . ... Explanation: Pictured above is the largest ball of stars in our Galaxy. About 10 million stars orbit the center of this globular cluster - named Omega Centauri - as this giant globular cluster orbits the center of our Galaxy . Recent evidence indicates that Omega Centauri is by far the most massive of the about 160 globular clusters in the Milky Way . ... About APOD | ...

... 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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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 . ...

... P1771 Date Received: 2003-Feb-03 12:38:44 Technical Page Proposal Type: Regular General Category: Pulsars Sub-Category: Continuum Observation Category: Galactic Total Time Requested: 27 Hours Proposal Title: TIMING NEWLY DISCOVERED MILLISECOND PULSARS IV ABSTRACT: In Arecibo proposal P1436, we were awarded 1.4 GHz pulsar search observations of 10 globular clusters (GCs). ... With 1 hour on each cluster plus 15 minutes for setup at each epoch, the total time request is 27 hours for the next year. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

... Orbit | ... Comet Hale-Bopp, designated C/1995 O1 (Hale-Bopp), is named after Alan Hale and Thomas Bopp, two amateur astronomers of Cloudcroft, New Mexico, and Glendale, Arizona, who independently discovered it on the night of 22 July 1995 whilst observing the globular cluster M70, in Sagittarius, which happened to be close on the sky. ... The initial orbit even indicated that Hale-Bopp might pass close to the Earth in 1997. ... Path of Comet Hale-Bopp (from March 1996 to May 1997). ... 1997 . ...

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... May 2016: Gravitational waves breakthrough . ... Observing springtime deep-sky objects with a large telescope . ... February 2016 . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

3rd of February 2016 . Storm Stow at ATCA . ... The picture was taken on 1 February 2013 at the Australia Telescope Compact Array (ATCA) while observing neutral hydrogen (HI) in the galaxy IC 1993. IC 1993 is an HI poor spiral galaxy located at the outskirts of the Fornax cluster. ... 2016) . ... Whenever there are strong winds or lots of lightning strikes the antennas need to be in a safety mode to protect them from damage from the storm. ... today * ATNF | ... ATCA | ...

... Galaxy clusters in presence of dark energy: a kinetic approach . ... The external regions of galaxy clusters may be under strong influence of the dark energy, which was discovered by observations of supernovae Ia at redshift z < 1. The presence of the dark energy in the gravitational equilibrium equation, with the Einstein ? ... diagram where equilibrium solutions are not possible. ... Galactic Cluster in the Presence of Dark Energy . ...

... 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 | ...

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. ...

Many intermediate-age star clusters in the Magellanic Clouds exhibit very unusual features in their colour-magnitude diagrams that suggest they may have formed their stars over periods spanning hundreds of millions of years per cluster. ... Nonetheless, this interpretation is enticing in the context of the formation of ancient globular clusters, which almost always exhibit puzzling abundance patterns that apparently require multiple episodes of star formation to explain. ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Monthly Sky Notes . ... By admin October 1, 2010 Posted in: Stars . A sky of blazing stars (Image Credit: NASA/ESA) . Imagine that once the Sun sets, rather than a dark sky sprinkled with a few thousand dim stars, we had a sky blazing with ten thousand or so stars blazing brighter than Venus. ... Planets orbiting stars in the NGC 3603 Young Cluster would experience just such a sky. ...

In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...

EURO­ASIAN ASTRONOMICAL SOCIETY R o u n d G r o u p lang lang uage uage Obs XX XX International Astronomy Olympiad , , 15 ­ 23. X. 2015 Kazan, Tatarstan, Russia English Code of participant Draw number . ... 10.1. ... Recently, astronomers have discovered a new open cluster. ... Draw configuration of the «stars». Answer 10.2. ... One of astronomers recognized familiar constellation in the outlines of the cluster. Write the standard threeletter designation of that constellation. ...