... 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 ...

... Moon, Venus, and Planet Earth . ... M45: The Pleiades Star Cluster . ... Have you ever seen the Pleiades star cluster? ... Perhaps the most famous star cluster on the sky, the bright stars of the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Galaxy Cluster Abell 1689 Deflects Light . ... A Landing on Planet Earth . ... Seen in silhouette against the rockets' glare, the spacecraft is a Soyuz TMA-08M. Crescent Moon Meets Evening Star . ...

... Step 1: The Footprint position calculation by the magnetic field line tracing from the satellite position up to the Ionosphere by using IGRF + Tsyganenko [1987] magnetic field model (the stop trace altitude 110 km). Step 2: Tracing back from the Footprint (produced on the Step 1) to the dipole equatorial plane (by using only IGRF magnetic field model up to the geocentric distance 8 RE and dipole field model after this distance). ... Back to the description . ...

... Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Mission profile SHM configuration Reliability Dnepr LV Performance Launch Sites . Baikonur Cosmodrome Yasny launch base Downloads . ... The original launch date for the RS-20 (converted SS-18 ICBM, commercially known as Dnepr) cluster launch mission was scheduled for March 27, 2007. ...

Astronomy Discussion Forums . ... What I See . ... Follow Ups | Post Message | ... I have observed the Double Cluster, the BeeHive cluster and other open and various Globular Clusters. My main problem with my 114mm reflector is in its inabliity to bring deep sky objects. ... 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" . ...

Next: Determination of atmospheric parameters Up: Optical spectrum of IRAS04296 Previous: Radial velocity of the . From comparison of observed and synthetic spectra of IRAS04296 we revealed some strong absorptional features whose positions coincide with known diffuse interstellar bands (DIBs) (Jenniskens et al., ... In Fig. 5 we illustrate the presence of DIB's by showing a spectral region of IRAS04296 . ...

Material Safety Data Sheet . ... Product details: . Trade name: Cadmium Tungstate . ... Hazard description: T Toxic . Information pertaining to particular dangers for man and environment . ... 3 First aid measures . General information . ... Belgium TWA 0.05 . ... This information is furnished without warranty, and any use of the product not in conformance with this Material Safety Data Sheet, or in combination with any other product or process, is the responsibility of the user. ...

... Participants . ... At the same time, the combinatorial description of moduli spaces of Riemann surfaces and related quantization topics together with the related issues in cluster algebras continue to thrive, including generalizations to algebras of higher rank and investigating the related algebraic structures. ... The workshop will take place at three locations: the Independent University of Moscow (3 days), the Steklov Mathematical Institute (2 days) and the Higher School of Economics (1 day). ...

Russian Academy of Sciences Pulkovo Observatory On systematic and stochastic errors of radio source position catalogues Zinovy Malkin Pulkovo Observatory and St. Petersburg State University malkin@gao.spb.ru JournИes 2013, Paris, France, September 2013 Topics to discuss The following topics related to the radio source position catalogues are considered: 1. ... A new approach to assess the external stochastic errors of radio source position catalogues has been presented. ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

ATMoB "Open Cluster Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Open Clusters Observing Awards program. Introduction: This awards program is oriented towards visually observing open clusters above magnitude 9.9. ... It turns out that a very unprejudiced and convenient method to dermine the limiting magnitude is to count the number of visible stars in certain areas on the sky. ...

Download Izmccd (~2.7 MB). ... If you want to calculate equatorial coordinates of object: . Click the " File " menu, and then click " Open " ; or press  on toolbar. Choose a file with image. ... Also see section " Viewing of image ". ... Before, if it is necessary, you must make an account dark current and flat field (See section " Preliminary processing of images ".) ... Measure the marked stars. ... Click the " Calculations " menu, and then click " Coordinates " or . ...

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

Description and Technical Details . In 1980s two medium-size horizontal solar telescopes 50/35000 cm with large spectrographs Czerny-Turner made by Carl Zeiss Jena were installed in the Ondњejov observatory. The Czerny-Turner-spectrographs in the Ondњejov observatory called HSFA1 and HSFA2 according to the German name Horizontal-Sonnen-Forschungs-Anlage ("horizontal device for solar research") have been explored for more than two decades. ... Diffraction grating - Richardson, Spectra-Physics . ...

Russian version of HP . ... StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows 9x/ME/NT/2000/XP (StarCalc version for PocketPC computers you can found here ). ... Extensibility : This program is based on common "Plugin StarCalc interface to catalogs and object groups", which allows program to add new modules as Plugins. ... Welcome to the Pocket StarCalc Home Page: . ... Some bugfixes in eclipses" and line" plugins - see the new versions in downloads page. ...

Планета Земля и Луна . ... Космическая защита . Луна . Фотографии . ... Строение Луны . ... Страница: Начало одиссеи , Экспедиции , Море Кризисов , "Аполлон-8" , "Аполлон-9" , "Аполлон-10" , "Аполлон - 11" , E-8 "Луноход" , Испытания Л-1 , Луноход - 1,2 , КА "Луна 1-24" , КА "Луна-9" , Луна от КА СССР ; . Луна - наш космический спутник . ... Снимки Луны от аппаратов серии Луна и Зонд (СССР) . Фотографии космических аппаратов серии "Луна" (также Луноходы) и "Зонд" - СССР . ... Зонд 3 . ...

... The words are numbered according to the reference mentioned above. ... 59 WORD wSecond ; // 0 .. 59 satellite tracking start time (GMT) float fStep ; // reserved WORD wMass ; // reserved BYTE reserved [12] ; // reserved WORD wExtraBytes ; // reserved } TRAJECTORYHEADER ; NOTE: the satellite tracking start time is a hardware operating start time to follow satellite. typedef struct { // ephemeris at satellite tracking start time double time ; // Epoch time (yyddd.ddddddddd)...

... Most HTML elements are identified in a document as a start tag, which gives the element name and attributes, followed by the content, followed by the end tag. ... To identify the document as being HTML 3.0, it is recommended that documents start with the prologue: <!doctype HTML public "-//W3O//DTD W3 HTML 3.0//EN"> . ... HTML 3.0 documents formally have the following structure: <HTML> <HEAD> head elements .. ... HTML> . ... The permitted syntax of HTML 3.0 compliant documents is specified by the...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Series 6000 APO Refractors . ... These telescopes come with all necessary equipment in the box and feature an altazimuth mount that allows for easy and quick viewing. ... NG70-SM Altazimuth Refractor . ... Meade NG70-SM Altazimuth Refractor #20218. ...