GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...

Main News Phones Research area Brief history Institute Structure Experimental Base Observational data English/Russian . research on the site(Google) . ... 677980 Yakutsk, Russia . ... 7(4112)390400 . Fax: . 7(4112)390450 . ... The Yakutsk Cosmic Ray Spectrograph . ... Phone: +7(4112) 390-455 . Fax: +7(4112) 390-450 . ... The cosmic ray spectrograph is located near Yakutsk . ... cosmic ray intensity in energy range from 2 to 300 Gev . ... ground-based muon telescope . ...

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

... Free image alignment/stacking/processing Software . My lunar drawings . ... REAL TELESCOPES . ... Download Pocket-Aberrator . ... The Aberrator is freeware that generates star-testing images to show the effects of aberrations (distortions) influencing the quality of a telescopes performance. ... The idea to make a program like the Aberrator I got after studying many internet-sites on star-testing and often the effects of certain aberrations were only available as literal descriptions. ...

Journal of the Amateur Astronomers Association of New York June 2008 Volume 56 Number 6, ISSN 0146-7662 EYEPIECE Global snow cover, an important surface feature for reflecting the Sun's radiation, has declined by 12 million square kilometers during the past half century. ... On June 6, a crescent Moon lies to Mars's lower right, while the next night the Moon stands below Saturn and Regulus. ... June 3 Moon at perigee, 221,985, 9:21 a.m.; New Moon at 3:23 p.m. June 7 Moon lies near Mars. ...

... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... 10 (IAUC # 4742) 2/25 13.3 16 j 2/27 13.5(*) 18 lc 2/28 13.8 19 p 3/1 13.2 20 w 3/2 13.5 21 a 3/4 13.8 23 p 3/6 13.3 25 c 3/7 13.3 26 c 3/8 14.1 27 m 3/8 13.3 27 r 3/9 13.4 28 c 3/9 14.1 28 m 3/10 13.6 29 j 3/10 14.0 29 a 3/11 13.6 30 c 3/11 13.5 30 r 3/11 13.7 30 s 3/13 [13.69 CCD Mag.] ...

... 1979 A TICKET TO SPACE . ... The Volks-rocket and its designer, Robert Truax. ... We have since heard of another "private venture" space project being pursued by the veteran rocket pioneer Robert Truax in the United States. ... One need not have the advanced degrees, perfect health or the thousands of hours .of flight time this frontier has demanded to be attracted towards it. ... Robert Truax brings some forty years of experience to his private manned space flight programme. ... Flight Tests . ...

... Left: A POSSM plot of the uncalibrated spectrum of DA 193 at 1.66 GHz on a baseline Bear Lakes to Noto. ... The phase slope as a function of frequency is clear evidence for a small delay error in the correlator model. Right: The same data as shown on the left, but corrected for a delay error and a residual fringe rate. ... Left: A VPLOT plot of the uncalibrated amplitude (upper frame) and uncalibrated phase (lower frame) as a function of time for the source DA 193 on a baseline HartRAO to Noto. ...

. Here it seems you see only diffuse top clouds. But actually i'd like to show you the optical effect known as "Glory". It consists in formation of colored circles around the shadow of the plane . hovering under the clouds.

my home page . Field of research interest . High Energy Astrophysics, . Compton effect, . Gamma ray generation, . Pulsars . Position . PhD 2000 in Astrophysics . Department Number . 01 (Theoretical Astrophysics) . Postal Address . Astro Space Center . of P.N.Lebedev Physical Institute . of Russian Academy of Sciences . Profsoyuznaya St. 84/32 . Moscow 117997 . RUSSIA . Telephone Number . +7(495) 333 3366 . FAX Number . +7(495) 333 2378 . E-mail . masha@lukash.asc.rssi.ru . Last modified: 29 June 2007

The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...

... Главная / ПРЕСС-ЦЕНТР / "Сердце" от Плутона . 09.07.2015 . Опубликовано новое изображение Плутона, первое после сбоя компьютера аппарата Новые Горизонты , произошедшего 4 июля. ... Представленное выше изображение карликовой планеты Плутон было получено 7 июля 2015 года и сочетает в себе данные наблюдения камер Long Range Reconnaissance Imager (LORRI) и цветной обзорной камеры Ralph с расстояния 8 миллионов километров. На изображении доминируют три широкие области различной яркости. ...

. Comment on J0437+2940 . The source has extended structure on the arcsecond scale over a very broad range of frequencies, from 25 MHz (Megn et al. 1987) to 98 GHz (Okayasu, Ishiguro & Tabara 1992). In our observation, the source is well resolved. VLBApls home page . Last modified: 16 Oct 2000