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1. APOD: 2002 March 19 - Breaking Distant Light
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 March 19 . Breaking Distant Light . ... Explanation: In the distant universe, time appears to run slow. ... Above , the light from distant galaxies has been broken up into its constituent colors ( spectra ), allowing astronomers to measure the redshift of known spectral lines . ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap020319.html -- 5.0 Кб -- 01.10.2012
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2. Weak Lensing Distorts the Universe
... Intervening dark matter , which is normally invisible, might show its presence by distorting images originating in the distant universe , much the way an old window distorts images originating on the other side. By noting the degree to which background galaxies appear unusually flat and unusually similar to neighbors, the dark matter distribution producing these weak gravitational lensing distortions can be estimated. ... Galaxy and Cluster Create Four Images of Distant Supernova . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1162685 -- 16.0 Кб -- 08.11.2006
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3. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/jetplane.html -- 21.9 Кб -- 09.04.2016
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4. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/0104a-b-c.txt
... STScI-PRC01-04 HUBBLE'S ULTRAVIOLET VIEWS OF NEARBY GALAXIES YIELD CLUES TO EARLY UNIVERSE Astronomers are using these three NASA Hubble Space Telescope images to help tackle the question of why distant galaxies have such odd shapes, appearing markedly different from the typical elliptical and spiral galaxies seen in the nearby universe. ... Light from these galaxies travels great distances (billions of light-years) to reach Earth. ... These stars emit mostly ultraviolet light. ...
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Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/0104a-b-c.txt -- 5.5 Кб -- 04.03.2001
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5. http://www.stsci.edu/~jkalirai/PressStarClustersAstronomy.pdf
Astronomy.com - A star cluster hides star clusters 4/2/08 11:35 AM News A star cluster hides star clusters Deep Hubble images of NGC 6397 reveal the most distant star clusters ever seen. Francis Reddy January 10, 2007 W hile exploring deep Hubble Space Telescope images of a globular star cluster called NGC 6397, astronomers stumbled on a distant background galaxy harboring hundreds of similar clusters. Each is so distant, it appears only as a faint point of light, even to Hubble's keen eye. ...
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Ссылки http://www.stsci.edu/~jkalirai/PressStarClustersAstronomy.pdf -- 120.8 Кб -- 19.09.2008
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6. 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" . ...
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7. Search for distant radio galaxies in SAO
... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...
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Ссылки http://mavr.sao.ru/hq/lran/vo/hzrgE.html -- 9.3 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lran/vo/hzrgE.html -- 9.3 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lran/vo/hzrgE.html -- 9.3 Кб -- 01.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lran/vo/hzrgE.html -- 9.3 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lran/vo/hzrgE.html -- 9.3 Кб -- 01.10.2012
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8. The Galaxy Gallery: Messier Objects
M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...
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Ссылки http://zebu.uoregon.edu/messier.html -- 7.0 Кб -- 23.07.2004
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9. HISTORICAL BACKGROUND
Next: BASIC PROPERTIES Up: R CORONAE BOREALIS STARS Previous: INTRODUCTION . RCB stars are named after a star just visible to the naked eye in the constellation of Corona Borealis. RCrB was discovered by Edward Pigott (1797), an English amateur astronomer, who had been observing a star in the `Northern Crown' for over a decade. ... Since 1795, other RCB stars have been discovered and their properties have been carefully observed. ...
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Ссылки http://star.arm.ac.uk/~csj/research/rcb_review/node2.html -- 5.4 Кб -- 25.01.2002
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10. Image: Dreaming about things on display. After checking, they appeared to be
. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 17/08 Kyoto streets. Maruyama park . Up . << Prev . Dreaming about things on display. After checking, they appeared to be not that tasty compared to how they look. Next >> . Created with the tool album generator from David's MarginalHacks on Wed Jun 5 20:38:34 2013 .
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Ссылки http://crydee.sai.msu.ru/album/trips/1997.08.Japan/17.Maruyama/tn/a12l.jpg.index.html -- 5.4 Кб -- 05.06.2013
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11. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B627F7BE8-4538-49D0-BB88-AA77C2E78F80%7D
. This montage combines data from ALMA with images from the NASA/ESA Hubble Space Telescope, for five distant galaxies. The ALMA images, represented in red, show the distant background galaxies being distorted by the gravitational lens effect produced by the galaxies in the foreground, depicted in the Hubble data in blue. The background galaxies appear warped into rings of light known as Einstein rings, which encircle the foreground galaxies. // ALMA (ESO/NRAO/NAOJ)/J. Vieira et al.
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Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B627F7BE8-4538-49D0-BB88-AA77C2E78F80%7D -- 3.8 Кб -- 10.04.2016
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- http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B5481ED71-E902-40B6-9F1D-D613CF0D7395%7D
- http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BB42005DF-EAF2-4359-9A0D-D9987CE5310A%7D
- http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B1D9CCD4E-CDE4-4B91-897F-535B924AC5BE%7D
12. Supernova spotted by Irish astronomer | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... As example you have only to look at the recent discovery of a supernova by Irish astronomer David Grennan . ... The last confirmed supernova in the Milky Way to be observed was in 1604 (known to history as Kepler ?s Star; it was bright enough to be seen in the daytime sky). €а Ever since then all supernovae examined by astronomers have been denizens of other galaxies. ... Tweets that mention Supernova spotted by Irish astronomer -- Topsy.com . ...
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Ссылки http://www.armaghplanet.com/blog/supernova-spotted-by-irish-astronomer.html -- 43.4 Кб -- 09.04.2016
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13. What is HISA?
... self-absorption - the absorption of light shining on an object by a process similar to that which produced the light originally; if a cloud emits less light than it absorbs from other clouds behind it, this net loss of light, termed self-absorption , causes the foreground cloud to appear darker than the background field (the term is from spectroscopy, where small absorption dips sometimes occur in larger emission lines, making the latter look as if it is absorbing part of itself) . ... HISA Main ...
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Ссылки http://www.naic.edu/~gibson/hisa/hisa_expl.html -- 8.6 Кб -- 26.02.2005
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14. http://www.eso.org/public/news/eso1246/kids/
... Makemake, a dwarf planet in our Solar System, appears to have no atmosphere; it is bald! ... Until a few years ago, Pluto was considered to be the most distant planet, until it was downgraded to a dwarf planet like Makemake. ... If there was an atmosphere around Makemake, the star would have slowly faded away as the dwarf planet blocked it. ... Cool fact: Beside Makemake there are four other known dwarf planets in our Solar System: Pluto, Ceres, Haumea and Eris. ...
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Ссылки http://www.eso.org/public/news/eso1246/kids/ -- 10.5 Кб -- 11.04.2016
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15. ASP: Star Science in the Autumn Sky
In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/32/starscience3.html -- 13.5 Кб -- 02.10.2012
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16. What’s this got to do with velocities?
. Previous slide . Next slide . Back to first slide . View graphic version .
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Ссылки http://www.mso.anu.edu.au/pfrancis/roleplay/MysteryPlanet/doppler/tsld007.htm -- 2.3 Кб -- 17.03.2004
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17. X--ray Quiet PMS Candidates
... There are several explanations for these X--ray quiet PMS stars. To examine the explanations, it is proper to divide the PMS stars into three groups: those bluer than R - I = 0.7, those redder than the X--ray sources (R - I > 1.25) and those with colors similar to the X--ray sources. ... A total of 26 of the non--X--ray detected PMS candidates had spectra taken. ... Between V=14 and V=16, I find 25 stars which are X--ray sources and estimate 19 non--X--ray PMS stars. ...
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Ссылки http://hea-www.harvard.edu/~swolk/thesis/optical/node10.html -- 7.7 Кб -- 02.10.2012
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18. How Distant is the Moon?--lesson plan #14
This section describes the calculation by which Aristarchus used the duration of a total lunar eclipse to deduce the distance of the Moon. ... This lesson plan supplements: "How Distant is the Moon--1", section #8c: on disk Shipprc2.htm , on the web . ... The shadow of the Earth at the Moon's distance is narrower than the Earth, because the Sun is seen not as a point but as a disk 0.5 degrees wide. ... An eclipse of the Moon is the passage of the Moon through the shadow of the Earth. ...
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Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Lhipprc2.htm -- 9.8 Кб -- 21.12.2007
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Lhipprc2.htm -- 9.8 Кб -- 22.12.2007
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Lhipprc2.htm -- 9.8 Кб -- 22.12.2007
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19. Comet Introduction
... Comet Animation . ... Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of diffuse material, called a coma, that usually grows in size and brightness as the comet approaches the Sun. ... As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilometers from the head, away from the Sun. ... The evaporated molecules boil off and carry small solid particles with them, forming the comet's coma of gas and dust. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/comet.htm -- 10.8 Кб -- 15.10.1997
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20. Doppler Shift
... Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looking at an approaching source see light that is shifted to shorter wavelength (a blueshift). ... By measuring the amount of the shift to the red, we can determine that the bright galaxy is moving away at 3,000 km/sec, which is 1 percent of the speed of light, because its lines are shifted in wavelength by 1 percent to the red. ... Part 2...
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Ссылки http://www.sao.ru/cats/~satr/cosmo/doppler.htm -- 3.7 Кб -- 17.10.2000
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