... The HDF Project. ... How to obtain the data catalogs. Observing logs and ancillary information. Technical information on the data reduction pipeline. Technical information on image registration and combination. Technical information on source detection and photometry. HDF Clearinghouse -- followup observations and analysis. ... Hubble Deep Field Academy -- Educational Resource for Middle School students . Hubble Deep Field South The Space Telescope Science Institute home page . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2007 April 2 . An Active Sunspot Viewed Sideways . Credit Copyright : Hinode , JAXA , NASA . Explanation: Why are there dark spots on the sun? ... In the center of the above image is a sunspot, but not seen in the usual orientation --this sunspot is seen sideways. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... An Active Sunspot Viewed Sideways . ... Credit: Hinode , JAXA , NASA Explanation: Why are there dark spots on the sun? Although noted for thousands of years, sunspots have been known for decades to be regions of the Sun that are slightly depressed and cooled by the Sun's complex and changing magnetic field . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Публикации с ключевыми словами: sunspot - magnetic field - Sun - Солнце - Солнечные пятна - магнитное поле Солнца . ...

... NASA's Hubble Space Telescope offers a stunning unprecedented close-up view of a turbulent firestorm of starbirth along a nearly edge-on dust disk girdling Centaurus A, the nearest active galaxy to Earth. A ground-based telescopic view (upper left insert) shows that the dust lane girdles the entire elliptical galaxy. This lane has long been considered the dust remnant of a smaller spiral galaxy that merged with the large elliptical galaxy. ...

... Projects . Data transfer . ... PPTA projects and allocations . ... Time active (d) . ... Not active . ... PPTA data release 2 . ... unallocated Study timing noise in PPTA pulsars . ... unallocated Reprocess P140 data with PPTA pipeline . ... unallocated Consider the optimal observing strategy for PPTA pulsars . ... unallocated Application of cyclic spectroscopy to PPTA pulsars . ... Profile Domain Pulsar Timing: Developing and applying techniques to PPTA data. ... Tue, 24 Nov 15 03:36:53 +0000 . ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Product Reviews . ... View more active galactic nuclei . ... In the July 2013 article, Secrets of the brightest objects in the universe, I describe what astronomers currently know about quasars, which are the most luminous type of active galactic nuclei (AGNs). ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... To view Postscript Format files you must have access to Ghostview or another suitable viewer. To view PDF files you will need Acrobat Reader or another suitable viewer. ... E. O'Shea, D. Banerjee, J.G. Doyle, B. Fleck and F. Murtagh . A 2001 368, 1095 . Full Paper - Postscript . ... L. Teriaca, M.S. Madjarska and J.G. Doyle . ... Full Paper - PDF . ... I. Roussev, R. Erd lyi, J.G. Doyle and K. Galsgaard . ...

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. ...

... Recent Topics . ... MAO main . ... New Layout for Viewing IAU Membership . ... От: "IAU Secretariat" . ... Тема: New Layout for Viewing IAU Membership . Dear National Members, . ... Members listed in the Directory are those we have sufficient contact information (valid email address) on, and he/she is affiliated with at least one IAU Division. ... To experience the new layout for viewing Individual Members, please follow this link: iau.org/administration/membership/national/ . ... MAO NASU . ...

... This site requires Javascript to function correctly. ... ASRAS HOME . ... About ASRAS . Join ASRAS . ... ASRAS Board Members . Our Observing Site . ... April 2016 . ... ASRAS MONTHLY MEMBERSHIP MEETING - Friday April 1 at RIT (ASRAS Events) . ... ASRAS Board members meeting - monday April 4 @ U of R Bausch and Lomb bldg (ASRAS Events) . ... Messier Marathon (Member Observing) CANCELLED (ASRAS Events) . ... ASRAS HOME Beginners Mees Observatory Contact US About ASRAS Our Observing Site Login . ...

... Counterpoint: Where Is the Best Place to View a Solar Eclipse? ... NASA Goddard Space Flight Center . Most eclipse viewers crave every second of totality they can get. For them, there is only one place to view an eclipse: at the center line. ... Extended views of Baily's beads, the chromosphere, and solar prominences can all be had near the edges of the eclipse path, but only at the expense of views of the corona, as the duration of totality drops precipitously near the shadow's limits. ...

Views of the Solar System . ... V iews of the Solar System presents a vivid multimedia adventure unfolding the splendor of the Sun, planets, moons, comets, asteroids, and more. ... Views of the Solar System offers enhanced exploration and educational enjoyment of the solar system and beyond. ... Sun . ... Asteroids . Comets . ... History . ... Satellite Data . ... Browser . ... Credits . ... Solar System Introduction . ... Sun, Planet & Satellite Data | Planetary Data Browser | ...

... Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . Title: Siding Spring Observatory - General Views . ... Views: 2377 . ... Views: 2904 . ... Views: 2728 . Aerial view, 1964 . Views: 2691 . ... Views: 2734 . SSO construction, 1963 . ... SSO, April 1964 . Views: 2819 . ... Views: 2708 . ... Views: 2693 . ...

... Sun images . ... Sun flares . ... Active areas . April : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: April 10, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... Basic Research results 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 Publication of data Possibilities of observing the structure and dynamics of microwave activity SSRT - Research results . ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

Next: Dark current and cooling Up: CCD Scientific Performance Previous: Particle Background Rejection . ... A standard TV format CCD is only 15mm across its diagonal, and hence substantial effort has had to be expended to increase the size of individual chips, and to develop techniques for mosaicking many chips, efficiently to cover the focal plane areas. ... This aspect alone hints at the complex trade-offs involved in the design of a CCD focal plane. ...

... click image to view discuss) . ... Submitted by Philip Levine on 04/19/2015 22:29:32 . ... more kids getting first view of the Sun . ... enjoying the views . ... Sun shroud helps the view . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

б© 2003 Microsoft Corporation. ... This document provides late-breaking information about the Microsoft Office PowerPoint Viewer. To view the Readme file on the screen, maximize the browser window. ... About the PowerPoint Viewer . ... The Microsoft Office PowerPoint Viewer allows you to view full-featured presentations created in Microsoft Office PowerPoint 2003. The PowerPoint Viewer supports viewing presentations created in PowerPoint 97, PowerPoint 2000, and PowerPoint 2002. ...