Astronet Поиск по астрономическим сайтам English Russian
        Точная форма слов   О проекте   Сайты   Справка
Найдено документов: 269725 (181 сайтов) ---- Время поиска: 0.84сек.   

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | След.

Показаны документы, содержащие фрагменты текста из документа

1. Mercury
... Mercury is the closest planet to the Sun and the eighth largest. ... An account of the non-discovery of a planet inside Mercury's orbit. ... Heraclitus even believed that Mercury and Venus orbit the Sun, not the Earth. ... Until 1962 it was thought that Mercury's "day" was the same length as its "year" so as to keep that same face to the Sun much as the Moon does to the Earth. ... Actually Earth's density is due in part to gravitational compression; if not for this, Mercury would be denser than...
[ Сохраненная копия ]  Ссылки -- 14.2 Кб -- 01.10.2012
Похожие документы

2. Jupiter's Moon Amalthea
Amalthea . Jupiter V . Amalthea [am-al-THEE-uh] is one of Jupiter's smaller moons. ... These four images of Jupiter's moon, Amalthea, were taken by Galileo's solid state imaging system at various times between February and June 1997. ... Amalthea, whose longest dimension is approximately 247 kilometers (154 miles) across, is tidally locked so that the same side of the satellite always points towards Jupiter, similar to how the near side of our own Moon always points toward Earth. ...
[ Сохраненная копия ]  Ссылки -- 11.0 Кб -- 15.03.1998
Похожие документы

3. Across the Sun
Astronomy Picture of the Day . ... Credit Copyright: G ran Strand Explanation: A long solar filament stretches across the relatively calm surface of the Sun in this telescopic snap shot from April 27. ... How long is the solar filament? ... Tracking toward the right across the solar disk a day later the long filament erupted, lifting away from the Sun's surface. ... April . ... April 2015 . ... Publications with keywords: Sun - filament . Publications with words: Sun - filament . ...
[ Сохраненная копия ]  Ссылки -- 14.5 Кб -- 05.09.1970
Похожие документы
Еще в разделе: (Показать все результаты (>118627) - )

4. hydrocarbon lakes on Titan
ARECIBO, P.R. -- The smog-shrouded atmosphere of Titan, Saturn's largest moon, has been parted by Earth-based radar to reveal the first evidence of liquid hydrocarbon lakes on its surface. The observations are reported by a Cornell University-led astronomy team working with the world's largest radio/radar telescope at the National Science Foundation's (NSF) Arecibo Observatory. ... The piggybacking Huygens probe is scheduled to plunge into the hazy Titan atmosphere and land on the moon's surface. ...
[ Сохраненная копия ]  Ссылки -- 6.3 Кб -- 03.01.2005
Похожие документы

5. Главная - Астрономия и Телескопостроение
... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...
[ Сохраненная копия ]  Ссылки -- 31.6 Кб -- 09.04.2016
Похожие документы
Еще в разделе: (Показать все результаты (>3) - )

... Most sources say that this warming is due to friction between the meteoroid and the Earth's atmosphere, and that is partially true. ... Most meteoroids are smaller than a grain of rice" Meteors are the bright trails left by fragments of natural space debris called meteoroids (usually chunks of rock and iron) falling through the Earth's atmosphere. ... These are called meteorites. ... Belonging to a rare class of meteorite called pallasites, it was discovered locally by Steve Arnold. ...
[ Текст ]  Ссылки -- 156.6 Кб -- 20.09.2011
Похожие документы

7. Astronomers once thought Pluto's atmosphere would condense down to the surface
... Astronomers once thought Pluto's atmosphere would condense down to the surface as it moved away from the Sun. Can that still be true, and if so, is that causing the surface features we now see? ... This is almost certainly because the atmosphere which is nitrogen, like Earth s atmosphere is also frozen as ice on the surface. ... Get instant access to subscriber content on! ... If you are already registered on, please log in below. ...
[ Сохраненная копия ]  Ссылки -- 64.0 Кб -- 10.04.2016
Похожие документы

8. Venus
The Bringer of Peace V enus is the second planet from the Sun and the sixth largest. ... S ince Venus is an inferior planet, it shows phases when viewed with a telescope from the perspective of Earth. ... T he pressure of Venus' atmosphere at the surface is 90 atmospheres (about the same as the pressure at a depth of 1 km in Earth's oceans). ... Craters on Venus seem to come in bunches indicating that large meteoriods that do reach the surface usually break up in the atmosphere. ... Earth .. ...
[ Сохраненная копия ]  Ссылки -- 14.4 Кб -- 28.04.1999
Похожие документы
Еще в разделе: (Показать все результаты (>975) - )

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...
[ Текст ]  Ссылки -- 205.0 Кб -- 25.02.2009
Похожие документы
Еще в разделе: (Показать все результаты (>127) - )

10. ASP: Star Science in the Autumn Sky
Ganymede is the largest moon in our solar system, larger even than the planets Pluto and Mercury. ... Ganymede's surface consists of two main types of terrain: old, dark polygonal units, and young, bright valleys and ridges (see figure 11 ). ... In a similar way, hitting a large block of ice with a hammer makes white marks. ... Ganymede as seen by Voyager 2. ... Because Voyager couldn't spot any large impact craters, scientists have concluded that the moon's surface is young. ... Moon . ... Europa . ...
[ Сохраненная копия ]  Ссылки -- 15.4 Кб -- 02.10.2012
Похожие документы

11. Phil Plait's Bad Astronomy: Info
... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...
[ Сохраненная копия ]  Ссылки -- 22.3 Кб -- 09.04.2016
Похожие документы

12. This year's largest group of sunspots passes across the solar disk
... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...
[ Сохраненная копия ]  Ссылки -- 9.6 Кб -- 01.10.2012
Похожие документы
Еще в разделе: (Показать все результаты (>3980) - )

13. C.J. Butler, Research Astronomer
Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...
[ Сохраненная копия ]  Ссылки -- 10.7 Кб -- 05.05.2000
Похожие документы

14. (S-7a) The Black Hole at the Center of our Galaxy
... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...
[ Сохраненная копия ]  Ссылки -- 9.5 Кб -- 21.12.2007
[ Сохраненная копия ]  Ссылки -- 9.5 Кб -- 22.12.2007
Похожие документы

15. GOODS: The Great Observatories Origins Deep Survey
... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...
[ Сохраненная копия ]  Ссылки -- 16.1 Кб -- 19.05.2010
Похожие документы

16. Solar Bridge Across New York Harbor ? Amateur Astronomers Association of New
... Home Observing Solar Bridge Across New York Harbor . ... Clear Sky Chart . This Month's Sky . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... Get on board with the Amateurs Astronomers Association, Sunday, September 20th, 2015 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...
[ Сохраненная копия ]  Ссылки -- 96.3 Кб -- 10.04.2016
Похожие документы

17. Retrieval of surface from data across the MUSTANG field
... OOF . ... OOF Index . ... OOF software . ... Fits up to fifth order . ... These are experimental data currently being analysed, not final documentation of research. ... Only fitting for Zernike orders up to and including 3rd to concentrate on finding possible off-axis aberrations. ... The results below show that when fitting for all Zernikes up to and including fifth order, the output maps vary greatly between pixels. As above, but fitting up to fifth order Zernike polynomial. ...
[ Сохраненная копия ]  Ссылки -- 37.7 Кб -- 25.11.2009
Похожие документы

18. Spectroscopy
. Previous slide . Next slide . Back to first slide . View graphic version .
[ Сохраненная копия ]  Ссылки -- 2.3 Кб -- 17.03.2004
Похожие документы

19. AY2006 (contents)
... Contents . ... Sidereal time . ... Ephemeris of the Sun . ... Aberration, parallax, mean longitude of the Sun, obliquity of the ecliptic, nutation in obliquity . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ...
[ Сохраненная копия ]  Ссылки -- 14.7 Кб -- 10.04.2016
Похожие документы

20. Low Surface Brightness Galaxy Gallery
In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...
[ Сохраненная копия ]  Ссылки -- 4.8 Кб -- 26.05.2000
Похожие документы

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | След.

Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам

Комментарии, вопросы? Пишите: или сюда

Rambler's Top100 RFBR Яндекс цитирования