... Hartmann Test Using a Screen With Four Holes 2 Hartmann test with four holes screen The theoretical concept of the primary aberrations measurement by four apertures Hartmann test introduced by "Malacara" * and "SalasPeimbert et. al. ... Black curve show the calculated coefficients for phase screens which have 8 modes of Zernike aberrations and red curve show the calculated coefficient for original phase screen. (a) astigmatism 45 (b) astigmatism 090 14 Coma Coma modes of Zernike aberration. ...

... Telescopes . LX850 Series . ... 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. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Acrobat 80 - Advanced Photo Tripod . ... Acrobat 80 - Advanced Photo Tripod #608051. ...

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

In 1848 the Swiss astronomer Johann Rudolph Wolf introduced a daily measure- ment of sunspot number. His method, which is still used today, counts the total number of spots visible on the face of the sun and the number of groups into which they cluster, because neither quantity alone satisfactorily meas- ures sunspot activity. An observer computes a daily sunspot number by multiplying the number of groups he sees by ten and then adding this product to his total count of in- dividual spots. ...

... To return and reuse the core stage was a complex scientific-engineering task assumed to be solved successfully, as experimental development was progressing. ... An important factor having bearing upon the implementation of the stage A development program was that a medium-lift launch vehicle "Zenit" was being designed at Design Office "Yuzhnoye" (Dnepropetrovsk, V. F. Utkin - Designer General) in parallel with NPO Energia's work on LV Energia. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... 1.4 OSGi Java. ... Solver, package sample; import org.slavery.basic.Solver; import org.xdp.commons.SessionID; import org.xdp.commons.URI; public class SampleSolver extends Solver { public SampleSolver(SessionID sid, String name) { super(sid, name); } @Override public void perform() { double d = (Double) storage.load( new URI(getName() + "/initdata"), getSessionID()); double r = Math.sin(d); storage.save(new URI(getName() + "/resdata"), r, getSessionID()); } 41 } load() storage, Solver. , save(). , ,...

... Телескопы . ... Планеты . ... Фотографии Планет . ... Телескоп Celestron Advanced C9.25-SGT (XLT) , f/20 , камера Celestron NexImage , сложено 1680 кадров в RegiStax 3 . ... Диаметр планеты 1 4" . ... Т елескоп Advanced C9.25-S GT XLT , NexImage + барлоу 2х НПЗ, фильтр Baader IR-Blocking, 10fps, 1/30сек. ... Т елескоп Advanced C9.25-S GT XLT , NexImage + барлоу 2х НПЗ, 10fps, 1/30сек. ... Т елескоп Advanced C9.25-S GT XLT , f/30 , NexImage, 10fps, 1/ 2 0сек. ...

... Possible methods for receiving ultra wideband chaotic signals are considered in the case of multipath indoor propagation (line-of-sight channel model). ... Assuming that sampling time is s=1/(2f) we obtain the data rate ~ 110Mbps.So for transition of a bit we need the information interval ~ 9ns. ... The through the background (circles)- (a); result of propagation of chaotic radio pulse indoor channel (the upper curve) and the total of the previous five information intervals SNR performance - (b). ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

This page is devoted to information on Supernova 1999gi in NGC 3184 . ... Information on the original web pages for many of these images can be found on the Supernova links web page. ... NGC 3184 is a fairly close Mag 10.3 galaxy, only about half as distant as the Virgo cluster. ... Seiichi Yoshida has a 1999gi page . Odd Trondal's 1999gi page . ... CfA image . ... 14.5 . ... Jean Marie Llapasset image . ... vsnet-alert 3805 ] SN 1999gi in NGC 3184 . vsnet-chat 2438 ] Host galaxy of SN1999gi . ...

... Observatory . ... THE HISTORY OF AAAP . ... After introductory remarks by Robert Sanders, founder of the Association, it was moved that the name of the organization be Amateur Astronomers Association of Princeton. ... 2/72 First issue of Sidereal Times, so named by Editor Roxanne Tobin. ... 5/72 Election of officers: Norman Sperling, Director; John Church, Assist. ... Sidereal Times, John gives the following report: . ... Sidereal Times.) ... Amateur Astronomers Association of Princeton Т? 2015. ...