... Далее при достижении определенной температуры в центре звезды загорается гелий, а водород продолжает гореть в слоевом источнике и т.д. Уравнения использованные в этой программе достаточно очевидны: во первых это уравнение генерации энергии в ядерном синтезе около центра звезды, во вторых перенос энергии к поверхности излучением и конвекцией, уравнение гидростатического равновесия (в котором газовое давление и давление излучением уравновешиваются гравитацией) и уравнение сохранения массы. ...
. Портал | Содержание | О нас | Авторам | Новости | Первая десятка | Дискуссионный клуб | Научный форум | Отправить открытку . Первая десятка "Русского переплета" Темы дня: . | Обращение к Дмитрию Олеговичу Рогозину по теме "космические угрозы": как сделать систему предупреждения? .
This module provides an environment variable with a unique identifier for each request. ... The unique identifier is even unique across multiple machines in a properly configured cluster of machines. ... On Unix machines, Apache creates several children, the children process requests one at a time. ... To distinguish time we will use a Unix timestamp (seconds since January 1, 1970 UTC), and a 16-bit counter. ... The actual ordering of the encoding is: time stamp, IP address, pid, counter. ...
... Астрофотография (Модераторы: Павел Бахтинов , Ivan Mhitarov ) ? title . ... Ответ #40 : 22.03.2006 [09:42:38] ? ... Записан . Сообщений: 18 268 . Рейтинг: +223/-45 . ... Последнее редактирование: 22.03.2006 [09:50:44] от Vladim ? ... Сообщений: 12 009 . Рейтинг: +369/-27 . ... Сообщений: 1 622 . Рейтинг: +40/-0 . ... Монтировка EQ-4 по классу однозначно ниже EQ-5 DS но тем не менее +-3" или даже +-2.5" вот они . ... Vladim! ... Цитата: Yuri19 от 30.11.2006 [10:07:07] Vladim! ...
... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...
The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of September 2009, the database (both the software and the content) is in its development/testing phase. ...
. Лаборатория астрометрии и звездной астрономии. MON.NOT.R.ASTRON.SOC. (MNRAS) . M.Ju.Khovritcev. Astrometric observations of the Uranian satellites with the Faulkes Telescope North in 2007 September. //MNRAS.2009. V. 393. P.1351-1358. pdf (3067K)
. The great September commet of 1882. This brightest comet was seen by many people. It shole like 60 full Moons and in the daylight was seen with the Sunlight. But the core of this comet was broken into two parts after the approaching with the Sun. The parts of the comet will return in 2650. Back .
MICROSCOPES . ... In the last three to five years, LOMO has developed new lines of products, including new families of biological, fluorescent, and polarizing microscopes, night vision devices, consumer Maksutov telescopes, etc. ... 1939 Company introduces its first student and biological microscopes. as well as its first manual movie camera . ... 1956 LOMO produces its first wide-screen-format movie projector and introduces its first fluorescent microscope for chemical structure analysis. ...
... It is being organized jointly by the Byurakan Astrophysical Observatory (BAO) and the Armenian Astronomical Society (ArAS). ... LIST OF LECTURERS AND LECTURES : Dr. Vladimir AIRAPETIAN (Goddard Space Flight Center, USA): Physics of Winds from Cool Evolved Stars Dr. Don BARRY (Cornell University ... (observation techniques and theory) Dr. Michel DENNEFELD (Institut d'Astrophysique de Paris, France): Introduction to spectroscopic observations Dr. Serguei DODONOV (Special Astrophysical ...
... 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. ...
... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...
... 86707 Email: vorobyov @astro.uwo.ca http://www.astro.uwo.ca/~ vorobyov / Research Interests Theoretical Astrophysics Galactic Dynamics Interstellar Medium Dynamics of Protostellar Disks Numerical ... magnetohydrodynamics Education Ph.D. in Astrophysics, October 2001, Special Astronomical Observatory (SAO), Russia Title: Influence of star formation on the large-scale processes in galaxies Work conducted at: Rostov State ... Vorobyov, E. I., Theis, Ch., ...
... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...
... PubliУ? le 28/05/2008 par Claro Miguel . Date : 07/05/2008 . Lieu : Parque da Paz, Almada - Portugal . ... Commentaires : In the image we can see an Earthshine Moon, and below center, the planet Mercury, near the horizon image. The image was made at the "Park of Peace", a big garden with a great lake in the center of Almada city, in Portugal. ... Date : 20/03/2007 . ... Commentaires : Moon Earthshine with Venus over the portuguese bridge that binds Lisbon to the south edge-"Almada city". ...