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. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... Observing . ... Home Observing Lincoln Center Lincoln Center Observing Schedule . ... Clear Sky Chart . ... Lincoln Center . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... RPFITS Files: Our working directory in Narrabri is /DATA/KAPUTAR_2/LVHIS ; for each observed galaxy a directory exists with subdirectories for the arrays, including data reduction scripts, notes,and results. ... Session 1: EW352 array, 22 x 12-h done. 2005, Jan 25 to 30 (B. Koribalski; 5 x 12-h); . ... 2006, Jan 28 (K. Kern; 1 x 12-h); . ... 2006, Jun 14-18 (B. Koribalski, A. Lopez-Sanchez, J. van Eymeren, 4 x 12-h), done. ... 2006, Nov 7/8 (B. Koribalski, E. Kirby; 2 x 12-h; remote) done. ...

SINGULAR POINTS IN THE SOLAR CHROMOSPHERE . ... In the structure of the solar chromosphere, containing information on the configuration of the magnetic field, we have found and identified all the main types of the singular points ( see Fig. 1 ), which are known as inherent features of the 2-D vector field. ... The main types of the singular points are the node, the focus, the center, and the saddle. ... Singular point of the focus type in the solar chromosphere. ...

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Point: Where Is the Best Place to View a Solar Eclipse? ... As viewers venture away from the center line of the eclipse path, the eclipse lasts for a shorter time (smooth line), but edge effects such as Baily's beads persist for longer (spiked line). ... The eclipse is longest on the center line of the path; the rare view of the Sun's beautiful white outer atmosphere, the corona, which can be seen only during eclipses, is also longest there. ...

... Chandra Survey . ... Fields Observed . NOAO Survey . ... X-ray Database . Optical Database . ... Chandra pointings for ChaMPane . Bulge Windows Survey . Bulge Latitude Survey . ... The ChaMPlane survey is being conducted at the Harvard-Smithsonian Center for Astrophysics. ... Optical Imaging and spectroscopy . ... X-ray Imaging and spectroscopy . ... IR Imaging and spectroscopy . Branden Allen . ... Allen Rogel . WIYN spectroscopy/Modelling . ...

Here user should specify the origin of coordinate system (observer's position). In case of rectangular coordinates it can be center of any major planet or the Sun or any minor planet. ... For spherical coordinates the origin of coordinate system can coincide only with the center of the Earth or with any point on the Earth surface. ... a)by code of observatory in the list of observatories maintained by Minor Planet Center (see IX. Observatories ). b)by introducing name of observatory. ...

... Tonight's Sky . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Astronomy for Kids . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Astronomy 101 . ... Gift Center . ... International Center for Radio Astronomy Research, Perth, Western Australia . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

SXG Data Center . ... Data archive . ... The prototype of archiving and data extracting system was realized for MOXE all-sky monitor long-term data archive . ... The data must be organized in the way that will provide the maximum effectiveness for the goals of long term data analysis i.e. long period monitoring of the particular field of the sky. ... DBM2 field Because the data in DBM2 are stored sorted by the fields on the sky it is the simpliest way to specify which part of the sky is necessary. ...

IBIS Data Analysis . ... IBIS . ... Flat Fielding - Introduction . The images obtained by IBIS will have intensity variations across the field of view that are not due to the solar image, but rather caused by instrumental effects that alter the observed intensity in each point of the field of view. ... IBIS Flat Fielding Techniques . ... Therefore, it is desirable to obtain the flat field measurements center on a point along the equator near the heliographic center of the solar disk. ...

... Telescopes ћ Binoculars ћ Microscopes . Binoculars Instruction Manual . ... Regardless of your application bird watching, nature studies, spectator sports or sightseeing you will appreciate the superior optics and durable construction that make Meade binoculars an excellent investment. ... FOCUS LOCK SYSTEM . Meade Safari Pro binoculars include a Focus Lock feature (see diagram), permitting the locking of the Center Focus Knob to maintain precise focus of an object at a specified distance. ...

... Completing the marathon requires viewing all 110 objects in 18th century French astronomer Charles Messier's catalog in one glorious dusk-to-dawn observing run. ... With the Milky Way as a backdrop, this group of about 150 astronomy enthusiasts conducted their 2011 marathon on such a night in April from the desert area of Seh Qaleh , in eastern Iran. ... Publications with keywords: Messier catalog - Milky Way - sky map . Publications with words: Messier catalog - Milky Way - sky map . ...

... School students recover Martian companion using Faulkes Telescope . ... We therefore decided to calculate positions 2 arc minutes and 6 arc minutes on either side of the predicted position to point the telescope, with the field of view being 4.7 arc minutes. ... Line of variation search (+ marks predicted position, O marks actual position) - Images obtained using the Faulkes Telescope North, operated by Las Cumbres Observatory . ... These observations were also sent to the Minor Planet Center. ...

... Observing may be done from any location. ... See this link for further details, limiting magnitude charts, and star count tables: http://www.imo.net/visual/major/observation/lm Proof Point Information : Shapley-Sawyer Classification: Reference: http://x.astrogeek.org/articles/article.php?article_id=15 Brief Description: I - High concentration toward the center; E.g ., NGC 6864, M75 II - Dense central condensation; E.g ., NGC 7089, M2 III - Strong inner core of stars ; E.g ., ...