... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

Еще в разделе: (Показать все результаты (>45) - vega.inp.nsk.su/ )

... Penumbral lunar eclipse of 2013 May 25 The beginning of the eclipse is visible from the extreme southwest of Euro- pe, western half of Africa, Antarctica, southeast half of Northern, Central and Southern America, Atlantic and eastern Pacific oceans. ... Universal time of geocentric opposition h m s in right ascension 2013, May 4, 3 55 07.3 Sun Moon h m s h m s Right ascension . ... 15 47.47 16 38.22 Circumstances of the Eclipse Position Angles of the Moon's axis h m o Moon enters penumbra . ...

Еще в разделе: (Показать все результаты (>362) - www.ipa.nw.ru/ )

• (Untitled)
• Keywords_120
• Observers

Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал > Метеорные потоки (наиболее заметные) > Писциды / Piscids (SPI) / Southern Piscids / Northern Piscids / Piscids complex / 2014 .. ... Просмотр полной версии : Писциды / Piscids (SPI) / Southern Piscids / Northern Piscids / Piscids complex / 2014 .. ... Писциды / Piscids (SPI) . ... Писциды / Piscids (SPI) / Southern Piscids / Northern Piscids / Piscids complex 2013 .. ...

Еще в разделе: (Показать все результаты (>946) - www.starlab.ru/ )

• Supernovae: and How to Observe Them (Astronomers' Observing Guides) - Общая
• Supernovae: and How to Observe Them (Astronomers' Observing Guides) [Архив] -
• Total Solar Eclipses and How to Observe Them - Общая Астрономическая...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>151) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Bitesize Astronomy

... Master . Master net Homepage . ... MASTER-Amur . ... Amb: . Dust: . ... Direct . 23s . ... 45s . ... observed area: . best limit: . Cameras . ... MASTER-Tunka . ... MASTER-Ural . master.kourovka.ru . ... MASTER-Kislovodsk . ... MASTER-Crimea . ... MASTER-SAAO . ... MASTER-IAC . ... MASTER-Argentina . master.sai.msu.ru:8080 . master.sai.msu.ru . ...

Еще в разделе: (Показать все результаты (>18) - master.sai.msu.ru/ )

Supernova 2000db in NGC 3949 . This page is devoted to information on Supernova 2000db in NGC 3949 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 Supernova links web page. ... We have a DSS Photometry reference image made by Odd Trondal. ... Masakatsu Aoki image . ... Bernd Brinkmann image . ... Rafael Ferrando image . ... 2001/01/13.095 . ...

Еще в разделе: (Показать все результаты (>517) - www.rochesterastronomy.org/ )

• Supernova 1998ar in NGC 2916
• Supernova 2000fb in ESO 205-G011
• ASRAS HOME

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

Еще в разделе: (Показать все результаты (>87) - www.wdcb.ru/ )

• http://www.wdcb.ru/stp/data/geomagni.ind/aa/aa_IMF/AAIMF.fmt
• http://www.wdcb.ru/stp/data/solar.act/flux10.7/%20%20penticton.txt

ASTRONOMICHESKII TSIRKULYAR No.1573, 2010 April 12 1995 2009 . A Comparison of the Latitudinal Variations of the Methane Absorption Bands on Saturn's Disk at Equinoxes 1995 and 2009 Abstract. The observations of Saturn at last equinox 2009 have detected significant differences of the latitudinal variations of the methane absorption from observed at 1995 equinox . ... 1995 . 2008- 2009 , ­ . ... 4 ( 580-880 ) , (.1) , 2008-2009 . ... 2 , 4 725 1995 2009 . ... 1995 2009 15 , 1980 1995 . ...

Еще в разделе: (Показать все результаты (>61) - comet.sai.msu.ru/ )

• List of the OH and H2O masers observed

... Meade Instruments Corporation . ... Refracting telescopes (Meade Models NG-60, NGC-60, DS-2070AT, ETX-70AT, LXD55-AR5, LX55-AR6 ) and mirror-lens telescopes ( ETX-90AT, 105AT, 125AT, LXD55-SC8, 8LX90, LX200 GPS Series ) are generally more versatile in a wide array of land and astronomical applications. ... The intermediate-level observer, or the non-casual telescope user who wishes to purchase one telescope for a lifetime, should consider a Meade Model LXD55 series, 8LX90, or LX200GPS. ... Meade 4M ...

Еще в разделе: (Показать все результаты (>2475) - www.meade.com/ )

• Meade Instruments Corporation - Choosing the Right Microscope
• Telescopes - Products
• Products

Альтернативный форум . Scientific.ru Все форумы . ... Time (@) - 13.04.2007 09:15 . Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results . x203a; x203a; x203a; в ответ на: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич . ... Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич, 13.04.2007 13:37 . ...

Еще в разделе: (Показать все результаты (>122) - www.scientific.ru/ )

• Scientific.ru Общий форум

... Data from NOAA SEC and other sources are given. ... Start . NOAA . ... End . ... MFS . ... non symmetrical absorption . ... Trace Flare Catalog and Trace Data Center . RESIK CATALOGUE (20010830-20030429) . ONDREJOV SOLAR RADIO EVENT ARCHIVE ( OSR ) . ... Yohkoh Flare Catalogue(HXT/SXT/SXS/HXS) (1998-2001) . ... Solar Activity Monitoring and Forecasting (Ondrejov) and Central European Solar ARchives (Observatorium Kanzelh he) click number of AR - images chromosphere in H? . ...

Еще в разделе: (Показать все результаты (>334) - lnfm1.sai.msu.ru/ )

• jo0048
• ji0003
• jg0010

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

Еще в разделе: (Показать все результаты (>258) - hea.iki.rssi.ru/ )

• Fast search through RTT150 data archive
• RTT150 telescope: GRB 051028
• Телескоп РТТ-150: гамма-всплеск 051028

Home . ... Observing . Exposure Time Calculator (ETC) . Survey processing . ... ESO - Public Surveys . near IR surveys . ... Exposure Time Calculator . ... Survey Area Definition Tool . Recommended values for Detector Integration Time (DIT) . ... Detector Properties . ... Filter properties . ... ESO ][ VISTA Home ] ...

Еще в разделе: (Показать все результаты (>28) - www.vista.ac.uk/ )

• VISTA - Visible and Infrared Survey Telescope for Astronomy
• VISTA ETC - Exposure Time Calculator

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 . ...

Еще в разделе: (Показать все результаты (>37) - ssrt.iszf.irk.ru/ )

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

Еще в разделе: (Показать все результаты (>6) - www.2dfquasar.org/ )

... Magnetic resonant mode in the single-layer high-temperature superconductor Tl 2 Ba 2 CuO 6+x. Abstract: . ... The mode has thus far only been observed in materials with crystal structures consisting of copper oxide bilayers, and it is absent in the single-layer compound La 2-x Sr x CuO 4+x . ... This restricts the theoretical models for the origin of the resonant mode and its role in the mechanism of high temperature superconductivity. ...

Еще в разделе: (Показать все результаты (>764) - www.issp.ac.ru/ )

• Conference Contributions
• ЛСПП - Фотогалерея - Subatomic resolution on Cu(014)-O
• LSSS - Photogallery - Subatomic resolution on Cu(014)-O

... Сегодня: 10 апреля 2016 г. Космический корабль, который работает на солнечной энергии, вскоре может начать свой полет по Солнечной системе. Группа американских и российских ученых готовится запустить зонд с гигантскими пластиковыми "парусами", которые могут ловить солнечный свет подобно тому, как паруса яхт ловят ветер, пишет The Observer (перевод на сайте Inopressa.ru). ... The Observer: российские и американские ученые создали космическую яхту с парусами из солнечных батарей . ...

Еще в разделе: (Показать все результаты (>73) - news.cosmoport.com/ )

... Recherche dans le site : . Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Curiosity observe de nouvelles traces dтАЩeau . ... Sur Mars, Curiosity vient de mettre en †йvidence des veines de gypse, un min†йral hydrat†й, incrust†йes dans de la roche. ...

Еще в разделе: (Показать все результаты (>2646) - www.cieletespace.fr/ )

• Stardust va observer le cratГЕre de Deep Impact sur la comГЕte Tempel 1 | Ciel
• Stereo observe la queue de Mercure | Ciel et Espace
• ALMA observe avec trois antennes | Ciel et Espace

. Album : asv-album :: Travels to distant places and countries :: 1998/03 Tashkent (Uzbekistan) . Up . << Prev . Nobody seem to observe anything on that telescope. Next >> . Photo album generated by photo album generator a Marginal Hack written by Dave on Tue Jun 23 14:46:31 2015 .

Еще в разделе: (Показать все результаты (>857) - crydee.sai.msu.ru/ )

• Image: Southern gate of Yasaka shrine.
• Image: Tower at the southern side of the dam.
• Springer LINK:A&A-EE: Table of Contents Volume 332 Number 2 (1998)

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

Еще в разделе: (Показать все результаты (>25) - site2010.sai.msu.ru/ )

• Results of recent and ongoing site programs