... 12 Mar 27 1981 12.5 24mm NGC 1912 M38 Open Cluster 8.0 II 2 r MESSIER MARATHON 2004 SAME MB,VL,100*'S APPROX SAME MAG,WELL PLACED IN 24MM MESSIER MARATHON 1981 CL,B,VL,VRI,IF,STL$S Mar 19 2004 12.5 12mmT4 20mm Mar 02 1984 10 Mar 27 1982 12.5 24mm Mar 27 1981 12.5 24mm Dec 03 1980 12.5 24mm 24mm Oct 29 1980 8 Sep 09 1980 ...

... We sometimes use the word "nebula" to refer to galaxies, various types of star clusters and various kinds of interstellar dust/gas clouds. ... Early in this century, there was a great debate as to the nature of the nebulae like this one which at that time could not be resolved into individual stars. ... A typical galaxy is 100,000 light-years in diameter. ... M 42 shown) Reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. ... M 1 shown) . ...

... Open Cluster M8 in the Lagoon . ... Credit Copyright: The Electronic Universe Project Explanation: The large majestic Lagoon Nebula is home for many young stars and hot gas . ... Formed only several million years ago in the nebula is the open cluster known as NGC 6530, whose young stars show their high temperature by their blue glow. The nebula, also known as M8 and NGC 6523, is named " Lagoon " for the band of dust seen to the left of the open cluster's center. ... NGC 7380: The Wizard Nebula . ...

Program number . ... Infrared Snapshots of 3CR Radio Galaxies . Abstract . ... Holland Ford, The Johns Hopkins University . ... An ACS H-alpha Survey of the Carina Nebula . ... A Snapshot Survey of the most massive clusters of galaxies . ... An ACS Imaging Survey of the Galaxies Hosting Strong Mg II Absorption . ... ACS observations of the galaxies in a giant Ly-alpha nebula at z~2.7 . ... An ACS Survey of a Complete Sample of Luminous Infrared Galaxies in the Local Universe . ... Past weeks: . ...

This is a study of the interstellar matter associated with the Pleiades star cluster. ... Since that time, the project has been extended to include more thorough tests of dust scattering models, more detailed analyses of the gas kinematics, and power spectrum studies of the multiscale structure of the nebulosity. ... The Pleiades Reflection Nebula. ... Gibson, S. J., & Nordsieck, K. H. 2003, Astrophysical Journal , 589 , 347 . ... B&W preprint: local gzipped PS . Color preprint: local gzipped PS | ...

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

... May 22, 1996 . Star Cluster in the Rosette Nebula . ... Explanation: Embedded in the center of the colorful and photogenic Rosette Nebula is a bright, young open cluster . The bright blue stars in this cluster, labelled NGC 2244, emit ultraviolet light that knocks electrons away from hydrogen atoms . ... The Rosette Nebula is thousands of light years distant, but light would take only about 100 years to cross it. ... Tomorrow's picture: The Violent Star Cluster 30 Doradus . ... About APOD | ...

... Non-NGC Images . ... Globular cluster in Scorpius (M80)..... image ..... caption . ... Globular cluster in Scorpius (M4)..... image ..... caption . ... Globular cluster in Oph (M107)..... image ..... caption . ... Nebula..... image . ... Globular cluster in Hercules (M13)..... image ..... caption . ... Globular cluster in Ophiuchus (M12)..... image ..... caption . ... Infrared-bright galaxy in Ophiuchus..... image ..... caption . ... Globular cluster in Ophiuchus (M10)..... image ..... caption . ...

... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...

... 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. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

... 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 . ... The Dish Cluster, the Pencil Nebula, and spiral galaxy NGC 2655 . February 25 March 3, 2016: The Dish Cluster in Puppis offers small-telescope owners a nice view, while large-telescope owners can seek out the Pencil Nebula in Vela and spiral galaxy NGC 2655 in Camelopardalis. ... Large telescope: Spiral galaxy NGC 2655 . ...

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... Трапеция Ориона (Trapezium, Orion Trapezium Cluster), Тета 1 Ориона (Theta 1 Orionis), Галилеевы звезды - рассеянное скопление в созвездии Орион (Orion) .. ... Галилеевы звезды, рассеянное скопление известное также как - Тета Ориона (Theta 1 Orionis, Theta Orionis, Trapezium, The Trapezium, Ori Trapezium, Trapezium cluster, Orion Trapezium Cluster) .. ... Трапеция Ориона - часть Orion Nebula Cluster!? ... Координаты рассеянного скопления Трапеция Ориона (Orion Trapezium Cluster) .: ...

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 07:48:26.7 . ЮД 2000 . -27:54:51 . l . 243.992 . b . -1.138 . diameter . 5.0' . (m - M) 0 . 11.48 0.16 . distance . 1980 150 pc . E(B - V) . 0.57 0.12 . log(t) . (J, J-H) isochrone VOTable . 2MASS data VOTable . Developed by the Team . Send us your questions or feedback

Next: Rotation Periods of PMS Stars Previous: Direct Monitoring of PMS Stars . Studies using direct detection of periods via rotational modulation have been carried out on stars in several young clusters which are near the zero--age main sequence (ZAMS), including the Hyades, the Pleiades and Persei (see Radick 1988, Schaller et al . ... Rotation in ZAMS clusters has a strong mass dependence. High--mass stars tend to rotate much more quickly than the low--mass stars. ...

Map and Constallation Key to Messier Objects for TELRAD Finders Messier Object Constallation Taurus Aquarius Canies Venatici Scorpius Serpens Scorpius Scorpius Sagittarius Ophiuchus Ophiuchus Scutum Ophiuchus Hercules Ophiuchus Pegasus Serpens Sagittarius Sagittarius Ophiuchus Sagittarius Sagittarius Sagittarius Sagittarius Sagittarius Sagittarius Scutum Vupecula ... Nebula Open Cluster Glob. ... Cluster Sunflower Galaxy G-Spiral G-Spiral G-Spiral G-Spiral Open Cluster Glob. ...

... ATNF Colloquium . Cold molecular gas in high-z proto-cluster radio galaxies: . ATCA's strength in the ALMA era . ... Abstract: I will present ATCA result from a survey for cold molecular CO(1-0) gas in proto-cluster radio galaxies at z ~ 2. ... The target in this picture is the Spiderweb Galaxy (z = 2.16), which contains an extended reservoir of cold molecular gas that fuels widespread star formation across the halo environment. ... today * ATNF | ... ATCA | ...

... Up: Data Analysis Tools, Techniques, and Software . Previous: An Automatic Astronomical Classifier Based on Topological Neural Networks . ... Teuben, P. J., Wolfire, M. G., Pound, M. W., & Mundy, L. G. 2000, in ASP Conf. ... P. J. Teuben, M. G. Wolfire, M. W. Pound, L. G. Mundy . ... We have assembled a cluster of Intel-Pentium based PCs running Linux to compute a large set of Photodissociation Region (PDR) and Dust Continuum models. ... 2000). ... Teuben, P. J. 2000, BIMA memo (in preparation) . ...

Электронная библиотека астронома-любителя. Книги по астрономии, телескопостроению, оптике. главная . библиотека . ... 0.026 . Общая литература по астрономии . Автор: Дагаев М. М. Название: Сборник задач по астрономии . ... Год: 1980. ... сайт служит астрономическому сообществу с 2005 года . ...