... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... Science Users Information > Data Handling and Products > Data Reduction FAQ > Why are my spectra not flux calibrated, even though there are standard star observations in the data set? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Data Handling and Products . ... Data Pipelines and Calibrations . ... ESO Data . ... ESO Data Access Policy . ... If there is no reference table for the flux standard star no response curve is created and therefore the science data are not flux-calibrated. ...

... Книга Николая Гавриловича Курганова (1725-1796) - талантливого самородка, солдатского сына, пробившегося благодаря своим способностям и трудолюбию в науку и в двадцать лет получивший звание "ученого подмастерья", а тридцать девять - профессора математики и навигации. ПИСЬМОВНИК стал настольной книгой многих поколений русских людей на протяжении четырех царствований - от Екатерины до Николая Первого. ...

... Российские ученые и конструкторы . Космонавты Советского Союза и России . ... Была открыта 5 сентября 1784 года астрономом Уильямом Гершелем. Ранее астрономы считали, что этот огромный и относительно тусклый остаток сверхновой, которая вспыхнула примерно 5000-8000 лет назад, находится на расстоянии около 2500 световых лет от Земли, однако исследования, которые выполнили космический телескоп 'Хаббл', показали, что туманность находится гораздо ближе - на расстоянии всего 1470 световых лет. ...

... A total of 19 standard observing bands are defined at the VLA. ... The tables below describe the bands. ... VLA STANDARD BANDS - VLA SYNTHESIZER SETTINGS VLABAND VLAFEAB VLAFECD VLASYNA VLASYNB FLUKEA FLUKEB FEFILT CC 0.00 0.00 3860.1 3810.1 100.00000 200.00000 0000 UU 19.60 19.60 3610.1 3660.1 100.00000 200.00000 0000 KK 17.60 17.60 3860.1 3810.1 100.00000 200.00000 0000 LL - 3.20 - 3.20 3639.9 3560.1 100.00000 200.00000 0000 XX 13.40 13.40 3939.9 3889.9 ...

... There are two ways to produce flat fields for use with IR data. The standard method is to take 'LAMP ON' and 'LAMP OFF' exposures of the calibration spot on the telescope dome. The 'LAMP ON' exposure contains light from both the calibration lamp, which should provide the even illumination needed for the flat field, together with potentially uneven illumination from the telescope and instrument environments. ... In MIDAS, you may directly use COMPUTE/IMAGE to perform the subtraction. ...

... Астрономическая неделя с 11 по 17 апреля 2016 года . ... Александр Козловский . ... День открытых дверей на Пущинской РадиоАстрономической Обсерватории 09 апреля 2016 года . ... Полное солнечное затмение 9 марта 2016 года . ... Полное лунное затмение 28 сентября 2015 года . ... Затмение, которое произойдет 28 сентября 2015 года, является повторением через сарос (цикл повторений затмений равный 6585 дней или 18 лет 11 дней) полного лунного затмения от 16 сентября 1997 года с максимальной фазой 1,20.....

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... Standard Commands . ... TwistedActor.Actor is core code for writing an actor: an instrument control computer (ICC) or hub-based script that does something useful. This manual describes the standard commands and keywords that any actor based on TwistedActor.Actor will support. All actors based on TwistedActor typically support the following standard commands (plus additional device-specific commands documented in that actor's manual). ... Connect one or more devices (if not already connected). ...

... Сегодня: 10 апреля 2016 г. В онлайновом магазине TheSpacestore.com выставлена на продажу спускаемая капсула корабля "Союз ТМ-26", на которой в феврале 1998 года вернулся на Землю экипаж 24 основной экспедиции на станцию "Мир", - сообщает Associated Press. ... До этого - в 1998 году - американскому музею продали космический аппарат "Бор-5". ... Интернет-магазин, продающий российский спускаемый аппарат, принадлежит американской компании Spacehab, производящей космические аппараты. ...

... Appunti Linux . ... FTP . ftp://genius.allnet.it/pub/mirror/AppuntiLinux/ . ... ftp://ftp.pluto.linux.it/pub/pluto/ildp/AppuntiLinux/ . ... ftp://pluto.psy.unipd.it/pub/pluto/ildp/AppuntiLinux/ . ftp://ftp.linux.it/pub/mirrors/pluto/ildp/AppuntiLinux/ . ftp://freedom.dicea.unifi.it/pub/linux/pluto/ildp/AppuntiLinux/ . ftp://ftp.appuntilinux.prosa.it/pub/AppuntiLinux/ . ... http://www.pluto.linux.it/ildp/AppuntiLinux/ . ... http://freedom.dicea.unifi.it/pub/pluto/ildp/AppuntiLinux/ . ...

... Archives . ... His foremost knowledge and historic account on statistical models related to errors may benefit astronomers. Although I didn?t study history of astronomy and statistics, I?m very much aware of how astronomy innovated statistical thinking, particularly the area of large sample theory. ... On the history and use of some standard statistical models . ... The particular reason for this paper into the slog is the following sentences: . ... Chandra Blog . ML Theory . ...

... Standard magnitudes can only be computed for the U, B and V filters and hence the only standard colours that can be calculated are U-B, B-V and U-V. An important point to note, is that these standard colours can be computed using the following instrumental colours - U-B, B-V, U-V, (UVW1-U), (UVW1-B), (UVW1-V), (UVW2-B) and (UVW2-V). ... The program loops through these colours and if the relevant instrumental magnitudes are present computes the standard magnitudes and standard colour. ...

Bridge World Standard Bridge World Standard (BWS) is a system based on the majority preferences of approximately 125 leading experts and thousands of Bridge World readers. ... Jacoby transfers (splinter rebids; game raise is slam try; two diamonds plus two spades forcing only one round); two spades shows minors; three hearts invitational, major two-suiter; Texas transfers; Stayman (two-spade rebid invitational; two-heart rebid weak; minor rebid forcing); Smolen; three of a minor invitational; Gerber. ...

... The New 1997 IEEE Standards Products Catalog features the complete listing of standards publica-tions and services IEEE Standards offers, along with the information you need to place your order. ... Books and Other Products on Standards - contains a detailed listing of informative print and electronic publications relevant to standards and their implementation in areas of electrical engineering, electronics and computer technology. ... IEEE Standards Products Listing 22 . ... Power Electronics 41 . ...

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

. To redirect the standard input for a command use the < (less than) character followed by the name of the input file. For example: mail tony < memo . This redirects the standard input to the mail command so that it comes from the file memo . The effect of this is to mail the contents of this file to the user tony .

... Фаза луны = 9% . ... Солнечная система . ... Луна . Марс . ... Сравнение планет . ... Карты поверхности планет . ... Об астрономии . ... Галактики . ... Космос . ... Новости космоса . ... События в астрономии . ... Нужны ли Вам книги по астрономии . ... Фото космоса . ... Библиотека . ... Луна ON-LINE . ... Космос видео . ... Хронология астрономии . ... Периодическая система . ... Частушки о космосе . ... Фото дня . ... Символы планет . ...