. Quantum clock (atomic clock) - the time measuring device containing quartz generator, controlled by the quantum frequency standard . Atoms play a role of pendulum. The frequency of atoms radiation while the atoms passing from one energy level to another regulates the quantum clock. This frequency is so stable (error 10^-11 - 10^-13) that quantum clocks allow to calculate the time more exactly, then astronomic methods. Back .

... The paper tracks basic evolution of the Soviet rocket and space industry after the 1946 and analyzes "genealogical trees" of the original enterprises (NII-88, NII-885, OKB-456, etc.) to reveal typical features of this evolution. ... The paper tracks basic evolution of the Soviet rocket and space industry after the 1946, when an original set of institutions was established. ... The study demonstrates, that the evolution of the Soviet rocket and space industry is more complicated, than usually...

... В декабре эти две планеты будут находиться вблизи Солнца - их ждет соединение с ним (будут находиться на одной линии с Землей и Солнцем). ... И ближе к Новому году нас ожидает такое интересное событие, как противостояние Марса. 24 декабря в 22 часа 48 минут Марс, Земля и Солнце будут находиться на одной линии, а, следовательно, Марс будет находиться очень близко к Земле. ... И еще одно событие декабря - зимнее солнцестояние, которое произойдет в этом году 22 декабря в 9 часов 8 минут. ...

... 13 December 2003: First image with new 355-мм telescope ( Подробнее ) . 29-30 october 2003: Aurora on Moscow Sky - video! This film was obtained using special wide field video-camera working in optical and near infrared ranges between 23h 29.Oct.2003 and 04h 30.Oct.2003 (GMT+3). ... Optical aftergow GRB030329 (first image in Europe - 5 h after GRB) . Laguna and Triffida Nebulae . Photo Slefogt-Rihter camera by Gennadiy Borisov . Extra Large Image 5,4 M . ...

The efficiency of interaction of radiation with a particle and hence its optical properties depend on the particle chemical composition, size, shape, structure, etc. ... Particle size expressed in units of the wavelength of incident radiation, together with chemical composition, most strongly affects the optical properties of a scatterer. ... There are many methods to solve the light-scattering problem for a homogeneous spheroid (our survey of the light-scattering methods see here ). ...

Microsymposium 38, MS068, 2003 (A4 format) BEAGLE-2 LANDING SITE ATLAS. ... The atlas will include Viking, MOC-WA, and THEMIS IR image mosaics, and a catalogue of high-resolution images from MOC and THEMIS with location maps. ... The poster will show selected maps and images from the atlas, describe the simulated panoramas, and discuss the probability of observing local MOLA-scale topographic features from the landing site. ...

... Tte tables of ionosphere and plasmasphere parameters are contained in a file param.tbl. ... Latitude Longitude Numbers of tables for (degree) (degree) Month Wm=10 Wm=100 Wm= 150 80 30 March 1 - 3 397-399 793-795 80 150 March 4 - 6 400-402 796-798 80 270 March 7 - 9 403-405 799-801 60 30 March 10 - 12 406-408 802-804 60 150 March 13 - 15 409-411 805-807 60 270 March 16 - 18 412-414 808-810 40 30 March 19 - 21 415-417 811-813 40 150 March 22 - 24 418-420 814-816 40 270 ...

... trans "Lomonosov Moscow State University" %} Sternberg Astronomical Institute . ... Seminar archive . ... Seminar archive 2014 26 December . ... Одно из первых цветных фото, полученных на новом телескопе: http://www.saao.ac.za/spod/first-light-with-master-saao/ . Отчет в Интернет: http://www.pereplet.ru/lipunov/325.html#325 . ... On 2014 December 21, a first light was obtained and on December 23 a first scientific telegram was sent in the Gamma-ray Coordinates Network (NASA). ... All seminars: . ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

December 16, 1997 . ... An example of the EUV chain revealed by the modified SOHO/EIT images. A complex EUV (195 A) chain or thread of December 16, 1997, consisting of several quasi-straight-line fragments between points 1-2-3-4-5 and covering a large part of the solar disk. ... A comparison of the large-scale chains and threads on two pairs of the modified SOHO/EIT (195 A; inverted) and He I (10830 A; normal) images. ... SOHO/EIT, 195 A, December 15-17, 1997 GIF Animation (1.07 MB) . ...

Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . ... 2015 . ... December . ... December, 2015 . Visual indices of solar activity by author's observations . ... Average . ...

... India (2011) 00, 1­8 Searching for fast optical transients by means of a wide-field monitoring observations with high temporal resolution G. Beskin1 , S. Karpov1 , V. Plokhotnichenko1 , S. Bondar2 , G. Greco3 , A. Guarnieri4 and C. Bartolini 1 2 3 4 4 Special Astropysical We discuss the strategy of search for fast optical transients accompanying gamma-ray bursts by means of continuous monitoring of wide sky fields with high temporal resolution. ... 8 G. Beskin et al Figure 4. ...

... The aerospaceplane project dated 29 June 1966 provided for the development of a 115-t orbital system consisting of three winged VTOL reusable aircraft: the 52-t HLA reusable hypersonic air-breathing launch aircraft, designated '50-50'; the RB expendable two stage rocket booster; and the OS manned orbital aerospaceplane, designated '50'. ... ORBITAL AEROSPACEPLANE DIMENSIONS . ... Instead, he came out with an initiative to start up the Buran programme in the USSR as a response to the US Shuttle. ...

... These images were provided to Winer Observatory by Mike Shade of Sonoita Hills Observatory as an example of the outstanding work done by local Sonoita amateur astronomers. ... All images on this page were taken with a 6-inch Astro-Physics aprochromatic refractor at Sonoita Hills Observatory using an SBIG ST-7 camera. ... Object: Galaxy Messier 100 . ... Date: March 2001 . ... All images on this page were taken with an f/5 Newtonian reflector at Sonoita Hills Observatory using an SBIG ST-7 camera. ...

. Date, from: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . to: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . Longitude, from: . to: . Latitude, from: . to: . Area, from: . to: . Brightness, from: . to: .

Lisnyky observatory of A&SPD is located in the village of Lisnyky in Kyiv region. AZT-8 (right) Diameter 0.7 m, Newton, Cassegren. ... Spiral jets of comet Hale-Bopp have been observing on the 3-rd of April, 1997 with 70-cm reflector and image intensifier, time of exposure: 1 second, field of vision: 1.5 minute of arc. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...