Large sunspots were occasionally seen far in the past without any instruments, when the sun was dimmed by thick haze, but not much was remembered of those observations. ... Sunspot Cycle (1850 - 1975) . One who was greatly influenced by Schwabe's discovery was an English gentleman of independent means, Richard Christopher Carrington , who devoted himself to the study of sunspots. ... Carrington had seen a flare, of the rare variety that is visible in white light (only about 50 are known). ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . Human Exploration . ... Posted on March 5, 2011 | 23 Comments Gleaned from NASA and Hubblesite.org, here are some facts you may not know about the Hubble Space Telescope (HST). 1.€а€а€а€а€а The HSTтАЩs history is longer than you might have [ ] . Continue Reading.. ... 1 Comment 2011 will be a year of exciting and historic upcoming events in space exploration. ... Posted on December 20, 2010 | ... Posted on October 1, 2010 | ...

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• Challenger remembered: An irony of history | Astronotes
• Colin Johnston | Astronotes
• observing | Astronotes - Part 6

... We present the algorithm and implementation details for the robust, realtime bandpass removal and calibration routine developed for the HI Parkes All Sky Survey project. ... Traditionally, the bandpass that is present in single-dish 21 cm spectra is removed by observing in a ``signal-reference'' mode. ... The robust bandpass removal algorithm implemented for the HIPASS Project successfully produces calibrated HI emission line spectra for most of the survey data. ...

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• The Co-Addition Technique Applied to Images of Galaxy Cores
• Data Structure and Software of the UCAC-S Project
• Asteroseismology-Observing for a SONG

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

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... Welcome to GALAXY-"light", a project that is expected to produce a continuously growing atlas of "thumbnail" CCD galaxy images and that was specially conceived to be useful in amateur supernova surveys. ... All GALAXY-"light" images are obtained by ANTONIO JOSE CIDADAO, a Portuguese amateur living in Oeiras, member of APAA (Portuguese Association of Amateur Astronomers, one of the founders of the "Astro-Port" mailing list, and also subscriber of "AUDE", "MAPUG" and "SBIGUSER" mailing-lists. ...

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• APOD: 2004 September 29 - HUDF: Dawn of the Galaxies
• APOD: 2011 April 22 - Virgo Cluster Galaxies
• APOD: 2015 August 4 - Virgo Cluster Galaxies

... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...

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• INTEGRAL 9-year Galactic Survey
• High Energy Astrophysics Department at IKI RAN

home publications > mercury . ... Astronomy Beat . ... Nearly four centuries ago, Galileo's simple observations of Earth's planetary sibling, Venus, buoyed the proponents of a Copernican universe. ... The Italian astronomer had settled into a new house in Florence and had begun to observe Venus, which in November 1610 would have appeared as an evening star, bright in the western sky after dusk. ... From these two observations, Galileo inferred that Venus must orbit closer to the Sun than does Earth. ...

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• ASP: The Universe At Your Fingertips Activities TOC
• ASP: Sharing the Universe
• ASP: Project ASTRO - Getting Involved

... Local Group Galaxy NGC 205 . ... The X-ray Timing Explorer . ... The Proportional Counter Array (PCA) and the High Energy X-ray Timing Experiment (HEXTE) will provide the best timing information in the widest X-ray energy range yet available. ... Just like our own Milky Way Galaxy, the nearest major galaxy M31 has many star systems spewing high energy radiation. ... The strongest source of X-rays in the Large Magellanic Cloud originates from an unusually energetic binary star system. ...

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... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

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• SADT - Survey Area Definition Tool - for VISTA
• Observing with VISTA
• VISTA ETC - Exposure Time Calculator

... JSC Oral History . NASA History . ... NASA Oral History Project: Earth System Science at 20 . This NASA Oral History Project features recollections from those who significantly contributed to the launch and evolution of Earth System Science. These interviews were gathered as part of the 20th anniversary of the Earth System Science Program. ... NASA Headquarters, Washington D.C. Program Manager , Stratospheric Theory and Data Analysis, Earth Science and Applications Division . ...

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• Astronaut Bio: Timothy L. Kopra (10/2014)
• Astronaut Bio: Steven L. Smith (12/2013)

... Защитная пленка Liberty Project предназначена для защиты поверхности экрана Samsung P5200/P5210 Galaxy Tab 3 10.1", а также частей корпуса цифрового устройства от царапин, потертостей, отпечатков пальцев и прочих следов механического воздействия. ... Потребительские свойства и эргономика сенсорного экрана при этом не ухудшаются. ' title='Arzberg Tric Fresh Пиала конической формы 12 см - Arzberg' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ...

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• Аксессуар Чехол Samsung Galaxy Tab S2 9.7 Book Cover EF-BT810PMEGRU Mint

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

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• SN1989B in M66
• Supernova Links
• ASRAS board members

... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...

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• INTAS project 2003
• Project summary
• Galaxy chemical evolution

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

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• Description of system SEDs
• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
• Description of SED models

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... The seasons, the seeing ( a clear sky is not always associated to calm , stable air ) and most important how dark your observation site is. ... Therefore a dark site for observing is at least as important for deep sky observation as the diameter of your scope. ...

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• AAL Homepage
• The Probook Project

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

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Next: Transparency of the Stochastic Up: Model of the Galaxy Previous: Frequency distribution of galactic . ... The parameters of the model resulted from a numerical fitting of various data, such as the observed distribution of the young star population and neutral hydrogen, the density of population II stars in the vicinity of the Sun, the galactic rotation curve and the dynamics and distribution of globular clusters   and dwarf irregular satellites of the Galaxy. ...

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• Gravitational waves from supernova explosions
• Gamma-Ray Bursts

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Brief History of Rocket and Space Technology . ... Flights Chronology . ... ISS Russian Segment . ... Sea Launch . ... Launches Chronology . ... Land Launch . ... 29L were used to launch the Galaxy 19 SC. ... Making the Rocket Segment systems ready for the launch site activities; . ... SL29 with the Galaxy 19 SC was launched. ... Contribution of RSC Energia to the Russian Rocket-Space Technology ....

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• RSC "Energia" - Land Launch
• S.P. Korolev RSC Energia - News

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

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Polycyclic aromatic hydrocarbons in HII regions: correlation with metallicity . ... We have perfomed the aperture photometry of HII regions using infrared images from telescopes Spitzer and Herschel at passbands 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 m. Emission of PAHs are observed at passbands 3.6 - 8.0 m, 24 m is emission likely of hot small particles and finally large particles are responsible for emission at 70 and 160 m. We determine abundances of PAHs using model of Draine Li (2007) . ...

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• Gradients in Disk Galaxies