... Yesterday, on October 16, 2015, the upper culmination of the Sun at the venue of the Olympiad was at 11:29:43 local time. Calculate as accurate as possible at what time the upper culmination of the Sun will be (or was) today. Estimate the difference h in the height of the Sun at the culminations yesterday and today. ... The Penguin was lucky to see an amazing picture: at the maximum phase of the eclipse the centres of both discs, solar and lunar, appeared just on the visible horizon. ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 06 - 12.04.2015, Forecast on 13 - 20.04.2015, Carrington Rotation 2162 (27,93.03.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL ALL DAYS. ... BY DATA OF CORONOGRAPHS SOHO AND STEREO WERE OBSERVED > 38 CME FROM WHICH FOUR WERE "PARTIAL HALO II" TYPE. ... R - solar rotations; KP - KIT PEAK solar observatory; EE-date of possible geomag. disturbance in the Earth's environment. ...

... Want to observe? ... TO IMPACT OF THE PLANET TO THE EARTH ANGLE OF THE PLANET OF THE SUN YR MT DAY H M S S IN RJ " H M S DEG ' " AU HR DEG DEG DEG DEG 2009 7 24 0 16 46. 1 ECL 2 P 0.367 294 6.3 0.496 21 49 34.53 -14 14 7.5 4.099283 -1.865 -28.5 17.4 176.0 -15.7 2009 7 24 1 15 9. 1 OCC 2 P 0.214 446 5.8 0.525 21 49 33.49 -14 14 13.3 4.099023 -0.889 -13.8 20.5 -169.8 -15.2 2009 8 12 1 54 2. ... International Year of Astronomy, Ireland National Node . ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

... 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). ...

... Home Links International Sidewalk Astronomy Night . ... Saturday night, April 12, 2008, is the 2nd International Sidewalk Astronomy Night.€а We call on all amateur astronomers to take their telescopes and binoculars out for the public to enjoy the wonders of the night sky.€а A first-quarter Moon will be visible, as will the planets Saturn and Mars.€а More information can be found at http://www.sidewalkastronomynight.com /, where you can register so people will know where to find you. ...

... Site User's Guide (revised January 2015) . General Observing Information . ... An area map is available, as well as detailed directions from regional airports. ... APO does not recommend using GPS for directions to the site; please use the written directions below. ... APO/SDSS/NMSU Purchasing, Travel, Receiving, and Shipping Procedures . APO Site Safety Plan, V2.31 (current); APO Sprinkler and Shutter Procedures (pdf) . ... Roads to APO are all paved but are subject to heavy snow and ice. ...

... The concerns here are similar to those for observing bright targets; saturation and blooming of the bright companion PSF must not impact the faint target. Also, one may need to consider subtracting the PSF of the bright object, and effects which limit the accuracy of that subtraction. If the bright companion will saturate and bloom, it will be necessary to rotate the CCD so that blooming along the CCD columns does not obliterate the faint target. ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Staff list | ... Email discussion lists . ... Astrophysics graduate student programs . ... Murchison Radio-astronomy Observatory . ... Australia Telescope Online Archive (ATOA) . ... Astrophysics overview . ... Arch | ... Virtual Radio Interferometer . ... The Virtual Observatory * . ... There is growing international and local interest in establishment of . Virtual Observatories, where a wealth of astronomical information . ...

... Science Users Information > Data Handling and Products > Data Reduction FAQ > Is it possible to calibrate the visibility data of our object with a calibrator observed in another mode? ... Observing Facilities . ... Observing with ESO Telescopes . ... Observing Tools and Services . ... ESO-MIDAS . ... Data Handling and Products . ... Data Pipelines and Calibrations . ... ESO Data . ... ESO Data Access Policy . ... The calibrator data should be reduced using MIA in HIGH_SENS mode (mode "D"). ...

... The early science program has been very successful with about 600 separate segments observed of which about 92% were successful. ... In response to AO-1, thirteen Key Science proposals were received from ~200 authors for 1800 hours and were evaluated by the RPEC. ... The RISC strongly urged that the results of the ESP and AO-1 need to be made available (published in refereed journals) as soon as possible which will give credibility to AO-2 proposals. ...

Next: BH+BH merging Up: The Present Situation in Previous: Observational Data . At present, it is possible to estimate binary NS merging rate in two ways: using the binary radiopulsar statistics observed and making various computations of binary stellar evolution. toPhinney,1991,ApJ, 380, L17 yr . ... 1991, ApJ, 397, L17 yr . ... toLipunov et al. ... We emphasize that although theoretical merging rates are systematically higher than observational ones, both estimates do not contradict each other. ...

... Armagh Planetarium . ... Universe . ... 25 Comments Space is something that fascinates many.€а Every day there are technological advances, new research being carried out and even historical space related anniversaries.€а Where would we be without those valuable [ ] . ... No Comments A new image from the European southern ObservatoryтАЩs Visible and Infrared Survey Telescope for Astronomy €а(VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young [ ] . ...

... News Latest News News Archive Newsletter Quarterly Status Report . ... Calibration strategy, status and factors limiting success: Chandra . ... Calibration strategy, status and factors limiting success: XMM-Newton . ... Calibration strategy, status and factors limiting success: Swift . ... Calibration strategy, status and factors limiting success: RXTE . ... Calibration strategy, status and factors limiting success: Suzaku . ... Calibration strategy, status and factors limiting success: Integral . ...

... Tonight's Sky . ... US state, Canadian province, or country . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... space flight . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... international space station . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

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. ...

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. ...

Peremennye Zvezdy ( Variable Stars ) 32 , No. ... We report on a new episode of decretion disk formation in the IGR J06074+2205 system. ... From a study of three HeI lines, the rotational velocity of the star was determined as km/s. After five years of spectroscopic monitoring of IGR J06074+2205 (Reig et al. 2010), a reversion from emission to absorption of the H line and hence disappearance of the equatorial disk was reported. ... Reig P., 2011, Astrophys.& ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 May 9 . International Space Station in Transit . ... Seen below the lunar terminator at the lower left, the International Space Station appears here at a distance of just over 400 kilometers, with the Moon nearly 400,000 kilometers away. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...