... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

Еще в разделе: (Показать все результаты (>909) - www.astrosociety.org/ )

• ASP: Stellar Evolution (a la Chez Stella)

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 21, 1999 . Follow The Spots . Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA . ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>8136) - www.sai.msu.su/ )

• Astronomy Picture of the Day's Educational Links
• APOD: 2003 December 5 - Startling Star V838 Mon
• Which supernovae search method ?

ERS -1,2 SAR . ... SIR-C/X SAR . ... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... The Spaceborne Imaging Radar-C/X-band Synthetic Radar (SIR-C/X-SAR), carried in the cargo bay of the Space Shuttle Endeavour in April and October of 1994, simultaneously recorded SAR data at three wavelengths (L-, C-, and X-bands; 23.5, 5.8, and 3.1 cm, respectively). ...

Еще в разделе: (Показать все результаты (>673) - www.iki.rssi.ru/ )

• Pictures/Рисунки

... Archives . ... If you do not mind the time predictor, it is hard to believe that this is a light curve, time dependent data. ... It?s hard to say this data set is designed for time series analysis apart from the complication in statistical inference due to measurement errors. How to design the statistical study with measurement errors, huge gaps in time, and unequal time intervals is complex and unexplored. ... The following is R output without measurement errors. ... Chandra Blog . ...

Еще в разделе: (Показать все результаты (>1931) - hea-www.harvard.edu/ )

• The AstroStat Slog crab nebula
• The AstroStat Slog gaussinity
• The AstroStat Slog integral

TUI supports the following offsets: . Object Arc offset by a given amount on the sky (i.e. along the arc of a great circle). ... Arc offsets are useful for moving a different portion of your object or a different nearby object onto the boresight . ... Object Arc XY this is identical to an Object offset except that it has been rotated to align along the instrument x-y axes. ... This is just like the Calibration XY offset, except that it is typically cleared when you slew to a new object. ...

Еще в разделе: (Показать все результаты (>680) - www.apo.nmsu.edu/ )

• Astrophysical Research Consortium - Apache Point Observatory
• SDSS Projects

Blackholes Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums | Blackholes I | ... There Are Two Different Situations Here! Forum List | ... Back to Thread Topics | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Еще в разделе: (Показать все результаты (>1374) - www.astronomy.net/ )

• Everyone Will Give You A Different Answer - an Astronomy Net Bigbang Forum
• A Different Time Subject When I Was A Child. - an Astronomy Net General Forum
• Hi There! - an Astronomy Net Exploration Forum Message

... The clock correction system described here refers the Parkes clock to UTC(NIST) and to UTC as defined by the BIPM. The data to make these corrections in TEMPO are stored in two files: . ... To checkout the repository, do the following on any ATNF machine: cd $CVSHOME cvs co soft_atnf/atas/clkcorr Ensure that the executables are up-to-date: cd $CVSHOME/soft_atnf/atas/clkcorr make Then follow the procedure outlined below to generate the clock correction files required by TEMPO: . ...

Еще в разделе: (Показать все результаты (>19418) - www.atnf.csiro.au/ )

• Conditional Compilation Directives
• Tempo Installation
• VLBI Wiki | Main / LBALogs

... Team . ... The main goal of observations of GRB host galaxies is accumulation of statistics of their spectroscopic and photometric properties. ... The Hubble diagram for 22 GRB host galaxies with known magnitudes and redshifts (GRB 970228, GRB 970508, GRB 970828, GRB 971214, GRB 980613, GRB 980703, GRB 990123, GRB 990510, GRB 990712, GRB 9912008, GRB 991216, GRB 000131, GRB 000210, GRB 000301C, GRB 000418, GRB 000911, GRB 000926, GRB 001109, GRB 010222, GRB 010921, GRB 011121 and GRB011211). ... 600...

Еще в разделе: (Показать все результаты (>675) - jet.sao.ru/ )

• RESEARCH PROBLEMS of the LRS
• Question/answer exercises
• Optimization of spectroscopic observations

The following files list line and continuum emissivities from the Arcetri Spectral Code. ... Ne = 10^8 g-zipped file (phot cm^3 s^-1); Ne = 10^8 g-zipped file (erg cm^3 s-1) . ... File format (html): File format for the continuum files . ... File format (html): File format for binned line emission files The following files list transitions whose emissivities have values greater than a fixed amount (10^-19 phot s^-1 cm^+3 and 10^-30 erg s^-1 cm^+3 respectively): . ...

Еще в разделе: (Показать все результаты (>6813) - www.arcetri.astro.it/ )

• Star Formation Group of the Arcetri Astrophysical Observatory
• FIRPO Help 5
• About this Book

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

Еще в разделе: (Показать все результаты (>251) - www.astro.spbu.ru/ )

• Database of Optical Properties -- Level: subpage
• MBOLS: Request results

These observations are aimed at fully charactering FORS1 photometric system (UBVRI zero-points, color-terms and extinction coefficients) for the Tektronix 2048x2048 pixel CCD (24µm px) . To this aim, the two Landolt/Stetson photometric fields SA95 and SA101 will be observed on a number of epochs and at different airmasses during February and March 2007. ... SA101 . ... OBs for SA101 have to be observed during evenigh twilight (exceptions are expected for the second half of March) . ...

Еще в разделе: (Показать все результаты (>10740) - www.eso.org/ )

• DFS group delivery procedure
• ESO - ESO sky correction tools
• FORS Sec Std and Abs Phot Project

Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...

Еще в разделе: (Показать все результаты (>544) - www.izmiran.rssi.ru/ )

NEUTRON MONITOR DATA FOR JUNGFRAUJOCH AND BERN DURING THE GROUND-LEVEL SOLAR COSMIC -RAY EVENT ON 29 October 2003 R. Buetikofer and E.O. Flueckiger Physikalisches Institut, Universitaet Bern Sidlerstrasse 5, CH-3012 Bern , Switzerland This report includes information on the processing and use of the data for the ground-level solar cosmic ray event on 29 October 2003 obtained by the following three ... Section 3 of the IGY neutron monitor at Jungfraujoch is the central section. ...

Еще в разделе: (Показать все результаты (>195) - www.wdcb.ru/ )

. First page Back Continue Last page Overview Graphics .

Еще в разделе: (Показать все результаты (>1990) - star.arm.ac.uk/ )

• Taurid Complex
• Follow up from the Second Cross-Border Schools Science Conference |
• Armagh Observatory

... Chapter 4: Solar System Targets > 4.2 Target Identification . ... The following information is required to identify and classify each target. ... For example, separate targets should be defined if you plan to take spectra of several different surface features on a planet, or if you plan to observe the same feature with different timing constraints. ... Description . PLANET . If the target is the center of a planet, enter PLANET followed by its name (e.g., PLANET JUPITER , PLANET SATURN ). ...

Еще в разделе: (Показать все результаты (>12552) - www.stsci.edu/ )

• Notation and Model
• Beginner's IDL - Line Plots
• WFPC2 Drizzle Cookbooks

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

Еще в разделе: (Показать все результаты (>1914) - www.sao.ru/ )

• HyperLEDA: documentation
• Radio data
• Monitor and Command Language

... Laboratory for Spectroscopy of Molecular Structures . ... Optics and spectroscopy of molecular and liquid crystals, fullerenes, superthin molecular films. Optical studies of structure, phase transitions, pretransitional phenomena, structural modifications in external field and under high pressure. ... Methods developed in the laboratory enable to determine in free standing films of different types liquid crystals values of polarization, two-dimensional constants of orientational elasticity. ...

Еще в разделе: (Показать все результаты (>857) - www.issp.ac.ru/ )

• International Astronomy Olympiad: Application to be ANRAO
• International Astronomy Olympiad: IAO-type events and Schools for Young
• High-purity Powders of II-VI compounds

... Bojan Nikolic web pages (r. 329) . ... Using high-resolution three-dimensional realisations of turbulent fields, we investigate the limits on achievable performance of atmospheric phase correction using water-vapour radiometers arising from following effects: the incoherent measurement of power from water by the radiometers (in contrast to coherent detection of the astronomical signal); the different tapers of the response patterns of the astronomical and radiometer receivers; and, the ...

Еще в разделе: (Показать все результаты (>1247) - www.mrao.cam.ac.uk/ )

• OptInt PmWiki : PmWiki / Custom InterMap
• Data Format Session at 2001 IAU WG Meeting
• AMI-Planck Follow-up Observation Database

... The orbits as follows are considered: INTERBALL Tail Probe (IB_TAIL) & Auroral Probe (IB_AUR), GEOTAIL (NASA/ISAS), and POLAR (NASA). ... The situation investigation aim is to select the following favourable spatial positions (FSP) : . ... FSP3 : That part of the FSP1 & FSP2 time intervals, which corresponds to the magnetic conjugations of the any couple of the considered spacecraft. ... The polar diagram plot . ... The geocentric distance (GCD) of the 4 spacecraft as a function of the time. ...

Еще в разделе: (Показать все результаты (>825) - www.cosmos.ru/ )

• A. A. Sukhanov, "Modern Methods for Space Flight Dynamics and Their
• Space Research Institute (IKI) Seminar
• Polar Orbiting Satellites

ASTRONOMY DO LIRGs FOLLOW THE TULLY-FISHER RELATION? Veronica M. Torres, Adriana J. ColСn; Colegio San Felipe, Arecibo, Puerto Rico Research Mentor: Dr. Tapasi Ghosh, Arecibo Observatory, Arecibo, Puerto Rico The purpose of this research was to study the LIRGs (Luminous Infrared Galaxies) and see if they follow the Tully-Fisher relation. ... The Tully-Fisher relation states that the bigger the galaxy is, the faster it rotates. ... Also, the bigger the galaxy, the more is its luminosity. ...

Еще в разделе: (Показать все результаты (>2630) - www.naic.edu/ )

• http://www.naic.edu/aisr/worldday/wd_intro.html
• Data and Analysis
• Gregorian weight