The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

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• Events on January 10-11, 1997 - INTERBALL observations
• Spacecraft Observing the Sun and the Heavens above
• The Heliosphere

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 17 - 23.02.2014, Forecast on 24.02 - 02.02.2014 , Carrington Rotation 2147 (11,73.02.2014) SUNSPOT-FORMING ACTIVITY REMINDER AT MEDIUM AND HIGH LEVELS, GRA- DUALLY INCREASING TOWARDS THE END OF PERIOD. ... NEXT WEEK IS EXPECTED THE HIGH AND THE MODERATE LEVELS OF SUNSPOT- FORMING ACTIVITY. ... FLARE ACTIVITY WAS AT THE MODERATE LEVEL 20 AND 23.02, AND THE LOW LEVEL IN OTHER DAYS. ... G - geoeffectivity in last solar rotation; A - active. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150511.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2015/obzor20150105.en.txt
• Space weather and ecology

... Correia, S., Carbillet, M., Fini, L., Bertero, M., Boccacci, P., Vallenari, A., Richichi, A., & Barbati, M. 2001, in ASP Conf. ... AIRY is a modular software package designed to simulate optical and near-infrared interferometric observations and/or to perform subsequent image restoration/deconvolution. ... Bertero, M., Boccacci, P., Correia, S., & Richichi, A. 2000, in Interferometry in Optical Astronomy , ed. P. J Lena & A. Quirrenbach, SPIE 4006, 514 . ...

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• REMOT: A Design for Multiple Site Remote Observing
• Asteroseismology-Observing for a SONG
• The NOAO Web-based Observing Proposal System

... ON THE ROLE OF LARGE-SCALE PLASMA IRREGULARITIES AT THE FINAL STAGE OF ANOMALOUS ABSOPTION DEVELOPING UNDER HF HEATING OF THE IONOSPHERE . ... Fig. ... With the aid of numerical statistical modeling based on multiple ray tracing it is shown that in presence of large-scale irregularities the reflected signal amplitude mean value is increased significantly. ... Dependence of the mean amplitude of the reflected from the ionosphere signal on the large-scale (10-50 km) electron density irregularity level...

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• Vertical Structure, figures
• MONTE-CARLO

Variations of total ozone content and lower ozone stratosphere temperature in Antarctic Region during winter-spring period A.V. Grytsai National Taras Shevchenko University of Kyiv Astronomy and Space Physics Department assen@univ.kiev.ua Data, used in the work work Total ozone: Total Ozone Mapping Spectrometer (TOMS) measurements during 1979 - 2005 and Ozone Monitoring Instrument (OMI) ones for 2006, for http://toms.gsfc.nasa.gov/ftpdata.html. ... A long-term TOC decrease is significant. ...

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• MAO NASU :: Topic: Fw: ASTRONET: Task 5.4 - observing schools (1/1)
• Celestial calendar - Solar Eclipses

. Weather Conditions . 3.5-m Observing and Staff Schedules . 3.5-m Night Logs . 3.5-m User's Mail Servers . Closure Policy . IAU Circulars (restricted to APO) . Catalog of UV and Optical Standards . Observing On-Site . Other Sources of Information . Staff Directory . Sky Calendar . Return to the APO Home Page

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• Untitled Document
• ARC 3.5m | Closure Conditions
• Observers Instructions for filling out the ARCSAT nightlog

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• The SMS Survey
• Melted remains of Cassegrain spectrograph are on the remains of the observing
• Siding Spring Survey Follow-up Obs

This image presents a beautiful composite of X-rays from Chandra (red, green, and blue) and optical data from Hubble (gold) of Cassiopeia A, the remains of a massive star that exploded in a supernova. ... The artist's illustration in the inset shows a cut-out of the interior of the neutron star where densities increase from the crust (orange) to the core (red) and finally to the region where the "superfluid" exists (inner red ball). X-ray: NASA/CXC/UNAM/Ioffe/D. Page, P. Shternin et al.; ...

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• Day and night observed on exoplanet | Astronomy.com
• Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,

... Observing . ... This Month's Sky . ... This Month's Sky - 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... In cooperation with the New York City Department of Parks, the United States National Park Service, and other organizations, the Amateur Astronomers Association holds observing sessions at several locations in and around New York City. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by ...

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• Observing Events ? Amateur Astronomers Association of New York
• High Line ? Solar Observing ? Amateur Astronomers Association of New York
• Observing Out-Of-Town ? Amateur Astronomers Association of New York

The upper mirage. The air is warmed at the Earth surface and its temperature falls with the height. ... The light beams coming from the objects on the Earth, draw a kind of an arch and return back down, sometimes tens or hundreds kilometres from the origin. Then we can observe the "rising horizon" or upper mirage . The upper mirages are seen in the sea before storm. Perhaps they bear the legends about the ships-phantoms. Back . ...

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• sunstroene
• merkurie
• venera1e

... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...

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• MASTER-Net Science Release on prompt optical observation of the GRB 090424

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

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• UHTC Coatings: Ultra High Transmission Coatings, Special Coatings, Telescopes,
• Telescopes - Products
• Products

... It was with this spirit that Norman Oberle suggested that area amateurs should have the benefit of a large aperture (25 inches or larger) telescope with sufficient focal length for excellent visual work. ... Norm Oberle and Jim Thomas spent 2,000 hours grinding and polishing to work the mirror into an oblate spheroid. ... Norm worked with Jim Thomas in a basement workshop. ... The Richland club is situated in the Hidden Hollow camp ground, and has long held meetings in the clubhouse on the grounds. ...

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RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Research results on fast active processes General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases ... Distribution of the recorded spikes in duration . ...

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THE SPREADING LAYER OF GX 9+9 Osmi Vilhu(1), Ada Paizis(2), Diana Hannikainen(1) , Juho Schultz(1) , Volker Beckmann(3), (1) (2) (3 Observatory Box 14,FIN-00014 University of Helsinki,Finland, E-mail:osmi.vilhu@helsinki.fi INAF-IASF,Milano, Italy, E-mail:ada@iasf-milano.inaf.it ) NASA/GSFC,Greenbelt,USA E-mail:beckmann@milkyway.gsfc.nasa.gov ABSTRACT The spreading layer (SL) of GX 9+9 during the upper banana state was studied using INTEGRAL and RXTE observations. ... MODELING OF THE SL-SPECTRUM 2. ...

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• http://hea.iki.rssi.ru/conf/hea2007/presentations/26.12.2007/02-cherepashchuk.pdf
• http://hea.iki.rssi.ru/integral06/papers/G53_Hudec02-16Feb07_17:12:18.pdf
• RTT150 telescope: GRB 051028

Abstract -- Abundances of heavy elements decreases with increasing galactocentric distance almost in all disk galaxies. ... To explain this gradient in young objects and in the interstellar gas one has to assume that a typical disk galaxy is an open system, i.e. it expels some synthesized heavy elements into the circumgalactic space and/or accretes intergalactic gas with zero metallicity, with rates of both processes depending on the galactocentric distance. ...

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• Starlight Polarization
• Project: PAHs

... The discovery of this radiopulsar is potentially important not only for confirming the theory of evolution of NS, but also for understanding processes occurring in stellar winds   from normal stars. After all, a radiopulsar orbiting in the semi-transparent stellar wind of a normal star is a sort of probe scanning an inhomogeneous plasma by pulsed radiation (Lipunov and Prokhorov, 1984)[ 110 ]. ... 1) absorption of radio waves (light curve); . ... This object is a radiopulsar orbiting a Be-star. ...

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• Mixing types of E-P-A binary systems with non-zero orbital eccentricity
• B light curve (Shugarov, 1976)
• The COOC Criterion (Criterion of Observations versus Calculations)

Astronomy Picture of the Day . Centaurus A: X-Rays from an Active Galaxy . ... The diffuse high-energy glow represents gas throughout the galaxy heated to temperatures of millions of degrees C. At 11 million light-years distant in the constellation Centaurus , Centaurus A (NGC 5128) is the closest active galaxy . ... Publications with keywords: Centaurus A - NGC 5128 - X-ray - active galaxy . Publications with words: Centaurus A - NGC 5128 - X-ray - active galaxy . ... The Arms of NGC 4258 . ...

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• Centaurus A: X Rays from an Active Galaxy
• Journal "Peremennye Zvezdy"
• Астронет > Centaurus A: X-Rays from an Active Galaxy

... 2001 August 16 . Centaurus A: X-Rays from an Active Galaxy . ... CXO , NASA . ... Astronomers were not disappointed, as Centaurus A's appearance in x-rays makes its classification as an active galaxy easy to appreciate. ... Blasting toward the upper left corner of the picture, the jet seems to arise from the galaxy's bright central x-ray source -- suspected of harboring a black hole with a million or so times the mass of the Sun. ... About APOD | ... NASA Technical Rep.: ...

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• APOD: 2003 July 5 - Centaurus A: X-Rays from an Active Galaxy
• Light Curve Templete/Observing Form For Visual SNe Observers.
• Contributions by amateurs: SN1996X.

Short-Period Comets: Origin and Terrestrial Impact Hazard . ... The model is consistent with the basic observed distributions of near-parabolic comets, short-period comets, Centaurs and high-eccentricity trans-Neptunian objects.This model requires that initial objects in the early Solar System are concentrated to the outer planetary region, and the physical lifetime of comets in the inner planetary region at the present epoch is an increasing function of initial perihelion distances. ...

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• Conference WPLTN-2012 | Conference page