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1. Journal "Peremennye Zvezdy"
Messier Craters in Stereo . ... Credit Copyright: Apollo 11 , NASA ; Stereo Image by Patrick Vantuyne Explanation: Many bright nebulae and star clusters in planet Earth's sky are associated with the name of astronomer Charles Messier , from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon. ... The shallow impact also resulted in two bright rays of material extending along the surface to the right, beyond the picture. ...
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Ссылки http://www.astronet.ru/db/varstars/msg/1337343 -- 7.8 Кб -- 30.05.2015
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2. APOD: 2013 June 8 - Messier Craters in Stereo
... 2013 June 8 . Messier Craters in Stereo . Credit: Apollo 11 , NASA ; Stereo Image by Patrick Vantuyne . ... His name is also given to these two large and remarkable craters on the Moon. ... Intended to be viewed with red/blue glasses (red for the left eye), this striking stereo picture of the crater pair was recently created from high resolution scans of two images ( AS11-42-6304 , AS11-42-6305 ) taken during the Apollo 11 mission to the moon. ... Tomorrow's picture: dancing sky . ...
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Ссылки http://www.sai.msu.su/apod/ap130608.html -- 5.3 Кб -- 28.02.2014
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3. Amateur Astronomers Association of New York ? Amateur Astronomers Association
... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...
4. IAU Commission #37 (Star Clusters and Associations)
... Commission 37: Star Clusters and Associations . Home Page . Commission 37 of the International Astronomical Union deals with all aspects of Globular Cluster, Open Cluster, and Stellar Associations research. With Commission 33 it forms Division VII of the IAU. Commission Structure . ... IAU Home Page . Open Clusters Database (maintained by J.-C. Mermilliod ) . Catalogue of Milky Way Globular Cluster Parameters (maintained by W. E. Harris ) . ...
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Ссылки http://www.mso.anu.edu.au/~gdc/IAUComm37.html -- 3.8 Кб -- 01.10.2012
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5. Amateur Astronomers Association of Princeton
... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...
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Ссылки http://www.princetonastronomy.org/ -- 23.1 Кб -- 02.04.2016
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6. Astronomy HyperText Book: Stellar Clusters
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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Ссылки http://zebu.uoregon.edu/textbook/sc.html -- 3.5 Кб -- 23.01.1998
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7. A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
... 87.1083Owen+ VIII/29 1400-MHz Survey of 1478 Abell Clusters of Galaxies (Owen+ 1982) ================================================================================ A 1400-MHz Survey of 1478 Abell Clusters of Galaxies Owen F.N., White R.A., Hilldrup K.C., Hanisch R.J. =1982AJ.. ... 0,] Major axis error 70- 71 A2 --- n_MajAxi *[ A, B, C,NR, ] Major axis note 73- 74 I2 arcmin MinAxi *? ... Note on dist-C: Ratio of the distance of the source from the cluster center to the corrected Abell cluster...
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Ссылки http://www.sao.ru/cats/doc/CL_Owen82.html -- 9.3 Кб -- 18.03.2015
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8. The AstroStat Slog Blog Archive my first AAS. IV. clustering
... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2008/my-first-aas-iv-clustering/index.html -- 24.2 Кб -- 01.03.2014
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9. SAI Open Star Clusters (SAI OCL) Catalog
... 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. ...
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10. APOD: December 13, 1997 - The Coma Cluster of Galaxies
... December 13, 1997 . The Coma Cluster of Galaxies . ... The Coma Cluster of Galaxies pictured is one of the densest clusters known - it contains thousands of galaxies . Each of these galaxies house billions of stars - just as our own Milky Way Galaxy does. ... In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other! Most galaxies in Coma and other clusters are ellipticals , while most galaxies outside of clusters are spirals . ...
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Ссылки http://www.sai.msu.su/apod/ap971213.html -- 4.4 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/coma_kpno_big.html -- 4.3 Кб -- 04.03.2001
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[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/coma_kpno_big.html -- 4.3 Кб -- 04.03.2001
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11. M55 globular cluster seen by ESO | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...
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Ссылки http://www.armaghplanet.com/blog/m55-a-glorious-globular.html -- 47.4 Кб -- 09.04.2016
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12. Black Holes in Globular Clusters
2002. Cable News Network Inc. All Rights Reserved. ... Discovery Communications Inc. ... The New York Times Company. ... The Washington Post Company. ... The International Herald Tribune. ... SPACE.com, Inc. ... United Press International. ... Last modified September 22, 2002. ...
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Ссылки http://www.stsci.edu/~marel/pressM15.html -- 6.4 Кб -- 22.09.2002
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13. ESO - Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm
... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...
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Ссылки http://www.eso.org/sci/activities/thesis-topics/abstr-kneissl.html -- 26.9 Кб -- 10.04.2016
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14. Pulsar Highlights - A Dozen new MSPs in Globular Clusters
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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Ссылки http://www.naic.edu/~pulsar/highlights/highlights_AOGC.shtml -- 7.6 Кб -- 03.02.2013
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15. Absolute proper motions of open clusters
ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...
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Ссылки http://www.sai.msu.su/groups/cluster/cl/pm/ -- 9.0 Кб -- 25.07.2002
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16. RV Tau Variables in Globular Clusters - clues on their nature?
... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... RV Tau Variables in Globular Clusters - clues on their nature? ... This is a report of the detailed elemental abundances of RV Tau variables that reside in globular clusters, and how they compare with RV Tau variables in the field. ...
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Ссылки http://www.atnf.csiro.au/pasa/15_2/russell/paper/index.html -- 50.5 Кб -- 08.04.2016
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17. Vladimir Marsakov Abstracts
... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...
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Ссылки http://ip.rsu.ru/~marsakov/abs/abst29.htm -- 9.2 Кб -- 02.02.2007
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18. Главная - Астрономия и Телескопостроение
... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...
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19. ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
... Our Milky Way galaxy is host to a number of companions. These companions are gravitationally bound to the Milky Way and are stellar systems in their own right. They include a population of about 150 globular clusters (GCs) and some 30 dwarf satellite galaxies (DSGs). ... These DSGs are more extended and diffuse compared to GCs. In fact the larger satellites of the Milky Way (and other galaxies, for that matter) host their own small systems of GCs. ...
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Ссылки http://www.astrosociety.org/pubs/mercury/38_02/forbes.html -- 6.7 Кб -- 02.10.2012
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20. Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
... Observing . ... Subscriber Extras . ... Web Extras . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Observing springtime deep-sky objects with a large telescope . ... Web Extra: Astronomers animate one of the largest galaxy clusters ever observed . ... At the center of the Phoenix Cluster, a large elliptical galaxy lurks where the hot gas is ejected, giving off unprecedented levels of X-rays, which have been observed by the orbiting Chandra X-ray telescope. ...
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Ссылки http://www.astronomy.com/magazine/2014/12/web-extra-astronomers-animate-one-of-the-largest-galaxy-clusters-ever-observed -- 64.1 Кб -- 10.04.2016
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