Astronet Поиск по астрономическим сайтам English Russian
       
        Точная форма слов   О проекте   Сайты   Справка
Найдено документов: 332401 (164 сайтов) ---- Время поиска: 0.57сек.   

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

Показаны документы, содержащие фрагменты текста из документа
http://www.armaghplanet.com/blog/moonlight-wonders-in-the-may-night-sky.html.

1. XWare > APOD
... Cataloged as IC 5146, the beautiful nebula is nearly 15 light-years wide, located some 4,000 light years away toward the northern constellation Cygnus. ... Of the over 200 globular star clusters that orbit the center of our Milky Way Galaxy, 47 Tucanae is the second brightest globular cluster (behind Omega Centauri). ... NGC 7008: The Fetus Nebula . ... Active Galaxy NGC 1275 . ... Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/apod.html?page=95&d=2011-03 -- 14.8 Кб -- 12.04.2016
Похожие документы
Еще в разделе: (Показать все результаты (>117189) - www.astronet.ru/ )

2. APOD: August 23, 1996 - NGC 3293: A Bright Young Open Cluster
... August 23, 1996 . NGC 3293: A Bright Young Open Cluster . ... Explanation: Hot Blue stars shine brightly in this beautiful, recently formed galactic or "open" star cluster. Open cluster NGC 3293 is located in the constellation Carina , lies at a distance of about 8000 light years, and has a particularly high abundance of these young bright stars. ... If true, star formation in this open cluster took at least 15 million years. ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap960823.html -- 4.7 Кб -- 02.10.2012
Похожие документы

4. M55 globular cluster seen by ESO | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...
[ Сохраненная копия ]  Ссылки http://www.armaghplanet.com/blog/m55-a-glorious-globular.html -- 47.4 Кб -- 09.04.2016
Похожие документы

5. APOD: 2000 August 4 - M15: Dense Globular Star Cluster
... 2000 August 4 . M15: Dense Globular Star Cluster . ... In fact, only 40,000 light-years away in the constellation Pegasus, M15 is one of the most densely packed globular star clusters in our Milky Way Galaxy. This stunning Hubble Space Telescope image of M15 shows thousands of individual stars across the central 10 or so light-years of the cluster, also cataloged as NGC 7078. ... Globular star clusters harbor from a hundred thousand up to a million stars and roam the Milky Way halo. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap000804.html -- 5.0 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ViaLattea/m15_hstheritage_big1.html -- 4.9 Кб -- 02.03.2001
Похожие документы

6. Globular Cluster NGC 5986
NGC 5986, a little-studied southern-hemisphere globular cluster, is remarkable in containing two very luminous A-F type stars, discovered by me in the 1970's. These objects are probably in their final evolution off the asymptotic giant branch. ... Determining the distance to NGC 5986 will help calibrate the absolute brightnesses of post-AGB A-F stars. ... NGC 5986: last updated 2001 December 20 . Mike Siegel and I have found a post-AGB star in the globular cluster M79 (NGC 1904). ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~bond/ngc5986/ngc5986.html -- 4.4 Кб -- 07.12.2007
Похожие документы

7. Bright planets meet at dusk | Astronomy.com
... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/News-Observing/Sky%20this%20Month/2013/03/Bright%20planets%20meet%20at%20dusk.aspx -- 63.7 Кб -- 10.04.2016
Похожие документы

8. Terry Mosely's Bulletins
... MOON OCCULTS PLEIADES, 23-24 FEBRUARY. ... known by different designations - don't worry if your PC programme or Atlas shows some of them with other Catalogue numbers STAR Mag Time V 624 Tau 8.2 E22.10 V 1187 Tau 8.3 E22.23 TYC 1803-188 E 8.1 E22.29 16 Tau 5.5 22.44 19 Tau 4.3 22.50 TYC 1799-306 E 8.5 E22.57 TYC 1803-104 E 8.9 E22.59 TYC 1799-184 E 7.2 E23.05 20 Tau 3.9 23.08 21 Tau 5.7 23.09 22 Tau 6.4 23.12 TYC 1804-2081 6.8 23.35 ... Clear Skies, Terry Moseley . ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/nibulletin/2007/Feb-17.html -- 7.6 Кб -- 19.02.2007
Похожие документы

9. http://www.atmob.org/about/observing/awards/files/messier_catalog_2011-02-01.pdf
ATMoB Awards Program - Messier Marathon Worksheet Observer: Date: Instrument(s) Used: Location: Messier Observing Catalog/Worksheet Observing Order 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 32 33 Messier Number M 77 M 74 M 33 M 31 M 32 M110 M 52 M103 M 76 M 34 M 45 M 79 M 42 M 43 M 78 M1 M 35 M 37 M 36 M 38 M 41 M 93 M 47 M 46 M 50 ...
[ Текст ]  Ссылки http://www.atmob.org/about/observing/awards/files/messier_catalog_2011-02-01.pdf -- 23.7 Кб -- 21.02.2011
Похожие документы

10. Astronomy HyperText Book: Stellar Clusters
Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/textbook/sc.html -- 3.5 Кб -- 23.01.1998
Похожие документы

11. Pulsar Highlights - A Dozen new MSPs in Globular Clusters
A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~pulsar/highlights/highlights_AOGC.shtml -- 7.6 Кб -- 03.02.2013
Похожие документы
Еще в разделе: (Показать все результаты (>1071) - www.naic.edu/ )

12. http://www.mso.anu.edu.au/~bessell/thumbnails/images.txt
GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~bessell/thumbnails/images.txt -- 8.7 Кб -- 27.01.2004
Похожие документы

13. You Can Make Stellar Images Brighter - an Astronomy Net Article
You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/articles/30/ -- 17.5 Кб -- 09.04.2016
Похожие документы

14. Clusters of Galaxies
... Radio source identifications . The Web-server of the Astronomical Institute of the St.-Petersburg University opens the experimental service on assignment of clusters data. At present only the data about radio sources in ACO clusters of galaxies are reasonably complete, while only restricted optical information is in our database. Later on, we also intend to include X-ray data and data about brightest cluster galaxies (BCG). ... ACO: radio optic ( for example, A0690 and " optic "), . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/cats/~CLUSTERS/CLUSTERS/ -- 3.6 Кб -- 18.04.2001
Похожие документы

15. ASP: Eclipse Watching: Making a Solar Filter
adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/41/filter.html -- 10.0 Кб -- 02.10.2012
Похожие документы

16. Southern SHARC survey
... This paper ( Burke et al. 2003 ) describes the creation of one such catalogue - the Southern Serendipitous High-redshift Archival ROSAT Cluster (SHARC) survey - which covers an area of 17.7 deg 2 and consists of 32 clusters with redshifts between 0.05 and 0.7 and X-ray luminosities between 7 x 10 42 and 4 x 10 44 erg/s: the high-redshift subsample contains 16 clusters with = 0.3 and X-ray luminosities greater than 2 x 10 43 erg/s (luminosities are quoted for the 0.5 - 2.0 keV energy band). ... 1997 ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/~dburke/southern_sharc/ -- 7.8 Кб -- 01.10.2012
Похожие документы

17. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The next step up are true clusters, called open clusters . Open clusters (sometimes misleadingly called "galactic clusters") are groups of stars ranging in size from a few dozen stars up to tens of thousands. ... The youngest is about 1 or 2 million years old, while the oldest is about 6 or 7 billion years, making it just older than our own solar system. ... So by looking at the stars in the cluster we can tell pretty well how old they are. ...
[ Сохраненная копия ]  Ссылки http://www.badastronomy.com/bitesize/openclusters.html -- 20.2 Кб -- 09.04.2016
Похожие документы
Еще в разделе: (Показать все результаты (>222) - www.badastronomy.com/ )

18. http://edu.zelenogorsk.ru/astron/keyadcg.txt
ADC CATALOG HOLDINGS SHORT TITLE LIST March 29, 2002 (adapted from ftp://adc.gsfc.nasa.gov/pub/adc/archives/catalogs/key) Category 1: Astrometric and Positional Data - March 29, 2002 1090 Positions of 502 Stars in Pleiades Region (Eichhorn+ 1970) 1107A Washington Cat Visual Double Stars 1984.0 (Worley, Douglass 1984) 1131A SAO Star ...
[ Сохраненная копия ]  Ссылки http://edu.zelenogorsk.ru/astron/keyadcg.txt -- 10.4 Кб -- 26.05.2002
Похожие документы

19. ULXs
... Ultraluminous X-ray sources (ULXs) are located in external galaxies, their X-ray luminosities (10 39 - 10 41 erg/s) are thousand times greater than those of brightest black holes in the Galaxy. ULXs may be supercritical accretion disks around black holes of stellar masses (~10 Solar masses) like that in SS433, or they may be a hypothetical intermediate-mass black holes (hundreds - thousands Solar masses) with standard accretion disks. ... 2) The ULX progenitors were ejected from the star clusters. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/Doc-en/SciNews/2012/ULXs/ -- 5.5 Кб -- 03.02.2013
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/Doc-en/SciNews/2012/ULXs/ -- 5.5 Кб -- 03.02.2013
Похожие документы

20. eclipsing_binary_pics.html
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... ATCA . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... CSIRO's Parkes radio telescope . ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/news/press/images/binary_pulsar/index.html -- 50.8 Кб -- 08.04.2016
Похожие документы

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


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

Комментарии, вопросы? Пишите: info@astronet.ru или сюда

Rambler's Top100 RFBR Яндекс цитирования