... Click on an object in the solar system or choose from the list at left to learn more . The Arecibo Observatory planetary radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth objects. ... The Solar System Studies group is a department of the Arecibo Observatory, which is an NSF facility operated under cooperative agreement by SRI International, Universities Space Research Association (USRA), and la Universidad Metropolitana (UMET). ...

... A hundred years later, a handful of Tunguska-sized asteroids have been spotted by telescopes, but most remain unseen. The asteroid designated 2008 TC3 , which made the news on October 6th before colliding with the Earth on October 7th was too small to constitute a part of the "Earth impact hazard". ... 2008 TC3, for example, finally exploded in the atmosphere above Sudan . ... Wednesday, 8 October 2008 01:15 . International Year of Astronomy, Ireland National Node . ...

... Public . Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... Science Announcements . ... Published: 17 Sep 2014 . An extended set of FAQs (Frequently Asked Questions) on data reduction is available . ... Published: 28 Aug 2014 . ... This feature is available for all ALMA programmes, except for science verification data. ...

Astronomy Terms - To Help You Study The Universe . Articles | ... Learning about the universe, or the study of astronomy, can be fun for the individual or for the whole family. ... Learning a few simple terms will help you with this fascinating study. ... You will use a telescope or binoculars for your observation of the sky at night. ... Celestial Terms . ... Meteor or a shooting star – the light caused when a meteoroid burns up in Earth's . ... www.astronomy.net . About Astronomy Net | ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Missions . ... POINTS (Precision Optical INTerferometer in Space) measures the angle between two widely separated stars. The nominal bright-star measurement accuracy of 2 microarcsec is achieved in two minutes of observing two magnitude 8 stars. ... For the grid-lockup and planet-detection simulations, we describe the work and discuss application to SIM. ... For the grid stars, POINTS would make about 360 measurements per day and complete a set of grid measurements in 4.2 days. ...

OFFICIAL PRESS RELEASE . ... The Primary Expedition 7 crew International Space Station (ISS) - Russian cosmonaut Yuri Malenchenko (ISS-7 commander, Soyuz TMA-2 commander), American astronaut Edward Lu (ISS-7 flight engineer, Soyuz TMA-2 flight engineer-1) - and European Space Agency (ESA) astronaut, Visiting Expedition 5 (VE-5) flight engineer, Soyuz TMA-2 flight engineer-2 Pedro Duquer of Spain have returned to Earth in the Descent Module (DM) of the Soyuz TMA-2 spacecraft. ...

Architect's Drawing: ARC 3.5-mTelescope This year we celebrate the 20th anniversary of the Astrophysical Research Consortium's (ARC) 3.5-m Telescope (1994 - 2014) dedication. ... It was a pioneer telescope in remotely operating the telescope and instruments. ... Four telescopes are currently operated: The Sloan Foundation 2.5-m Telescope, the ARC Small Aperture 0.5-m Telescope, the New Mexico State University 1.0-m Telescope, and the ARC 3.5-m Telescope. ...

Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

... Calibration and analysis of this observation posed very interesting challenges for the authors, in particular dealing with an exciting new instrument whose on-orbit calibration was not yet well defined. ... Five mosaic positions were observed during five consecutive orbits as well as observations for dark and flat calibration. ... Darks and flats had to be created from contemporaneous reference observations and problems within the calibration process had to be resolved. ...

... Astrophysics Group . ... Surveys and Catalogues . 10C . ... AMI-Planck . ... FIRST . ... The 15.7-GHz, 10C Survey was carried out using the Arcminute Microkelvin Imager (AMI) Large Array (LA), which is operated by the Cavendish Astrophysics Group at Lord?s Bridge, Cambridgeshire. ... The first 10C Survey results from an area of тЙИ 27 sq. degrees complete to 1 mJy and тЙИ 12 sq. degrees complete to 0.5 mJy have now been released. ... The 10C catalogue is available in ASCII and PDF formats. ...

Observations of stellar magnetic fields is a powerful method to study of different non-stationary effects in our Galaxy and behavior of plasma under astrophysical conditions. ... Investigations of stellar magnetism by means of Zeeman measurements of polarized spectra of different stars are one of the most significant observational programme on the 6-m telescope BTA of our Observatory. ... Laboratory for the Stellar Magnetism Study . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

XMM­Newton CCF Release Note XMM­CCF­REL­0247 EPIC canned response matrices I. de la Calle October 1, 2008 1 Purpose The generated EPIC canned response matrix files (RMFs) are described and published on a dedi­ cated web page at http://xmm2.esac.esa.int/external/xmm sw cal/calib/epic files.shtml and allow the user to load them (together with source and background spectra of EPIC observations and related ancillary matrices) into spectral analysis packages like XSPEC for model fitting. ...

Hamburg/SAO Survey (HSS) for Emission-Line Galaxies - New Wide-Angle Search for Blue Compact Galaxies (BCG) . ... New project named Hamburg/SAO Survey extends study of blue compact galaxies to new large wide-angle sample based on digitized objective-prism photoplates of the Hamburg Quasar Survey (HQS). ... 60%) of observed emission-line objects in accordance to the idea of use objective-prism wide-field surveys as favorable technique to search for narrow emission-line galaxies . ...

... The commissioning of the FORS2 multi-mode astronomical instrument at KUEYEN , the second FOcal Reducer/low dispersion Spectrograph at the ESO Very Large Telescope, was successfully finished today. ... FORS2 is now ready to be handed over to the astronomers on April 1, 2000. ... Additional information about the VLT Data Flow System is available in ESO PR 10/99 . ... ESO Press Photo 05a/00 . Preview; JPEG: 400 x 452; 52k] . ... This is the caption to ESO PR Photos 05a-c/00 . ...

Next: Release of 16 October Up: Old Releases Previous: Release of 18 September Contents . ... 18 Oct 2001 RCW. ... 13 Dec 2001 RCW . ... Change TSETTLE to 6 for VLBA stations after experience with a 43 GHz phase referencing run that had 15 second scans. ... 2 Jan 2002 RCW . ... Add MINSETUP to the station catalog to deal with cases where there is a minimum scan change time regardless of the slew and settling times, but where this minimum time should not be added to scan changes with long slews. ...

... Tonight's Sky . ... News . Observing . ... Sky this Month . ... Astronomy for Kids . ... NASA releases new imagery of asteroid mission . ... NASA released on August 22 new photos and video animations depicting the agency s planned mission to find, capture, redirect, and study a near-Earth asteroid. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... As a result, two fuzzy cloud-like objects, not visible to northern hemisphere dwellers, are now known as the Clouds of Magellan. Jovian Aurora . ... These two recently released Hubble Space Telescope close-ups show the Northern and Southern lights ... on Jupiter. ... Since the 1980s, astronomers have been pointing toward Beta Pictoris, a young, sun-like star a mere 50 light-years distant, as a likely example. Beta Pic is surrounded by a disk of dust which we view nearly edge-on. ...

... Liyong Liu (NAOC) . Site testing on seeing conditions of the astronomical observatories over China are briefly reviewed, including Xionglong station of NAOC, Gaomeigu station of Yunnan Observatory, Delingha station of Purple Mountain Observatory. ... PDF [3.0€аMB] October 8, 09:55 10:20 . ... In this paper, we will review the site survey activities in the past years, and present the site-testing results on the Oma site, including cloud cover, seeing, water vapor, transparency and sky brightness. ...