... 2004 November 14 . Leonids Above Torre de la Guaita . ... Explanation: The 1999 Leonids Meteor Shower came to an impressive crescendo. Observers in Europe observed a sharp peak in the number of meteors visible around 0210 UTC during the early morning hours of November 18. ... Visible are at least five Leonids meteors streaking high above the Torre de la Guaita, an observation tower used during the 12th century in Girona, Spain . ... About APOD | ... NASA Official: Jay Norris. ...

Astronomy Discussion Forums . ... A Number Is A Very Specific Thing . ... Post Message | ... Posted by Harvey on October 9, 2002 16:41:15 UTC . ... When you use the word 'number', you are introducing a specific kind of symbol that is known within the context of mathematics. ... You know what - harvey1 - October 9, 2002 - 20:53 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

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 | ...

... Organisers: Michel Balazard (CNRS, Laboratoire Poncelet) , Xavier Caruso (CNRS, Laboratoire Poncelet) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems) , Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics) . ... Number theory seminar . ... One of the goals of the semester is to convey the essential unity of the subject, especially to young mathematicians who use number theory in their research. ...

Тема : Хвостатые гостьи V (информация для наблюдения комет) .. Показать сообщение отдельно . ... Хвостатые гостьи .. ... после того, как ISON приплыл мимо нас, земля находится на орбитальной траектории, которая пройдет через след частицы кометы (тот, который ISON оставил позади, когда это приближалось к солнцу и это случайно встретит или вокруг 12 января - 15, 2014 . ... лучшее время наблюдения 22:00 LDT (Northern hemisphere 45њ North) .. - радиант расположен вблизи Al'dzhabkhakh (30-Eta Leonis, ? ...

FORMAT ------------------------------------------------------- Format for Russian radar ranging of planets (1962-1995) columns format content 4 i1 planet: 1-Mercury , 2-Venus, 4-Mars 7-8 i2 number of the transmitting station 11-12 i2 number of the receiving station 15-27 f13.3 date and time of signal emission: 15-18 year 19-20 number of the month 21-22 the day of the ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Site . Weather . Roof Status . ... Average Max. ... 0.0 . ... In 2004, the roof was operated manually, while in 2005 through 2007, it was operated automatically by computer, but was not closed by weather sensors. ... The "Closed" column includes those nights outside the Monsoon season when the Observatory was closed due to weather (the usual cause), equipment failures, or vacation by the Winer staff in 2004 through 2006. ...

... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

... Data Reduction FAQ > A number of OmegaCAM filters show vignetting in their central regions. What are the causes for this and what are the dimensions of these features? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... A number of OmegaCAM filters are not monolithic, but consist of four segments (each covering 8 detectors) that have a central cross-shaped support structure. ... Filter . ...

... BADPIX NO 2 Changes This release comprises two fundamental issues concerning bad pixels:  a number of so-called "low count" columns was established by an analysis performed at SRON with science data. ... They contain for each period in time the same bad pixels / columns they had in the former valid releases with the adding of the "low count" columns as advisory hot columns. ... Five "low count" columns in RGS1 and one in RGS2 are agged in the new CCFs (0012 to 0014) as advisory hot columns. ...

Product: Report of Solar-Geophysical Activity :Issued: 2016 Apr 08 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. ... Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. ... Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. ...

. Next: Tape I/O Up: Film Hardcopy Previous: Film print queues . Depending on the number of entries, images in the olour queue will be checked and activated once per week. Development of the films may take upto two weeks after which they will be send to the user. Thus, a turn-a-round time of approximately one month must be expected when using film hardcopy. Pascal Ballester . Fri Mar 24 17:17:52 MET 1995

The following companies have been solicited to participate in the I.V. League, a group whose products and services will support and promote OS/2 2.0 : CATEGORY (NUMBER ENLISTED) COMPANIES WITH 2.0 PRODUCTS WITHIN 90 DAYS COURSEWARE and TRAINING PROVIDERS (25) ATI Available soon Applied Learning Soon Computer Training Ctr Now Denenfeld Systems Design May Kee Systems ... Denenfeld Systems Design 519-396-8088 Service: Training available in May 10. ... IDG Books Service: Publisher 38. ...

... In particular, members of the project regularly organize events dedicated to various interesting astronomical phenomena and events - solar and lunar eclipses, transit of Venus, etc. On November 3rd a team of astronomers will venture deep into Turkana National Park, Kenya and attempt to broadcast the magic of a total solar eclipse to the world. ... Solar eclipse . A solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun from our view. ...

... a journal of his thoughts and experiences, some two million words in . ... The boy's sled gets put away in the barn or shed, and there it lies . dormant all summer, like a woodchuck in winter. ... sees a sled, nor a sled a woodchuck, unless it were a prematurely risen . ... Journal, 25 March 1860 . ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Behemoth black hole found in an unlikely place . ... black holes . ... Observing springtime deep-sky objects with a large telescope . ... Could large numbers of black holes account for much of the "dark matter" estimated to exist in our universe? ... NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) No, because the universe never had the raw material to grow enough black holes to account for current estimates of dark matter. Get instant access to subscriber content on Astronomy.com! ...

The Infrared Supernova Rate . To derive the number of SNe expected in our ground-based data and calculate the IR supernova rate , we have to derive a relation between the luminosity of the galaxies and their Star Formation Rate (SFR) and the shape of the "mean" K-band light curve for a core-collapse SN. ... Rates are generally normalized to the luminosity of the parent galaxy, either the B luminosity of L(FIR). ... For comments please contact: gcresci@arcetri.astro.it . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

SIXTH CREW REQUIRED RESOURCES IMAGES VIDEO . ... EXPEDITION SIX (ISS-6) . REQUIRED RESOURCES . During the ISS-6 mission 79 sessions by 28 experiments are intended to be implemented. ... Allocation of Experiments and Number of Sessions by Research Areas. Research Area . ... Totally . ... Problems of Space Power Systems and Propulsions Systems . ... POWER CONSUMPTION . Permanent Power Consumption . Maximum Power Consumption per Session (during 2 hours) . ... 44 h 10 min . ...