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1. A Spectacular View of the Lagoon Nebula | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...
[ Сохраненная копия ]  Ссылки http://www.armaghplanet.com/blog/a-spectacular-view-of-the-lagoon-nebula.html -- 45.4 Кб -- 09.04.2016
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2. How do light pollution filters work? Do they actually help? | Astronomy.com
... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How do light pollution filters work? Do they actually help? ... Light pollution reduction (LPR) filters work because many outdoor lighting sources do not shine evenly across the visible spectrum. ... 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/magazine/ask-astro/2012/05/under-light-polluted-skies -- 63.2 Кб -- 10.04.2016
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3. http://www.wro.org/neumann/RNGC_by_Constellation-CMa.pdf
... F,L,IRREGULARSHAPE,R=F Dec 19 2006 31 Dec 19 2006 31 Nov 22 2006 8 IC 2163 17mmT4 11mmT6 R,PL, OVAL ,NND,R=F VF,VS,EL,NND,AV,R=F Galaxy SB(rs)c pec Dec 19 2006 31 Feb 10 2005 8 IC 2165 17mmT4 Planetary Neb 3b VB,PS,R=G, NO CENTRAL STAR Dec 19 2006 31 IC 2171 17mmT4 PF,CS, OVAL ,NND,R=F Galaxy IB(s)m: Dec 19 2006 31 NGC 2204 ... OIII FILTER PB,EL,PATCH,R=E,HINT-NEBULOSITY,NO FILTER NGC 2360 19mmW 12x50 25mmPL H12-7 Open Cluster 10.4 I 3 r CL,VL,RI,PC,ST9.. ...
[ Текст ]  Ссылки http://www.wro.org/neumann/RNGC_by_Constellation-CMa.pdf -- 10.7 Кб -- 28.02.2016
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4. Светофильтры - Celestron LPR (Light Pollution Reduction), Baader UHC-S
... Обзор LPR фильтра. Впечатления от наблюдений с LPR фильтром. ... Характеристики цветных фильтров Baader-Planetarium . Мой перевод pdf- файла о фильтрах с сайта Baader-Planetarium (379 кб) . ...
[ Сохраненная копия ]  Ссылки http://www.shvedun.ru/filters.htm -- 33.2 Кб -- 09.04.2016
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5. Astronomy HyperText Book: Interstellar Medium
Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/textbook/ism.html -- 4.2 Кб -- 23.01.1998
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6. Emission Nebula IC 1396
Astronomy Picture of the Day . Emission Nebula IC 1396 . ... 5.08.2004 . ... Credit: Richard Crisp Explanation: Sprawling across hundreds of light-years, emission nebula IC 1396 mixes glowing cosmic gas and dark dust clouds . ... Emission from sulfur atoms is shown in red, hydrogen atoms green, and oxygen in blue. ... August . ... August 2004 . ... Publications with keywords: emission nebula - star formation - hydrogen . Publications with words: emission nebula - star formation - hydrogen . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1198884 -- 14.5 Кб -- 05.08.2004
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7. Meade Series 4000 Broadband Nebular Filters
... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...
[ Сохраненная копия ]  Ссылки http://www.meade.com/catalog/meade_4000/meade_series_4000_nebular_filters.htm -- 29.2 Кб -- 06.10.2007
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8. The star cluster and nebula NGC 371 | ESO
... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... ESO Acronyms . ... Survey Telescopes . ... Galaxy Clusters . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... This picture of the star cluster and surrounding nebula NGC 371 was taken using the FORS1 instrument on ESOтАЩs Very Large Telescope, at the Paranal Observatory in Chile. ... NGC 371 . ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/public/images/eso1111a/ -- 94.7 Кб -- 10.04.2016
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9. http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_03_04_94
HUBBLE SPACE TELESCOPE DAILY REPORT #1089 PERIOD COVERED: 0700 EST Daily Status Report as of 066/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed FOC/96 5146 (Ultraviolet Observations of Globular Clusters) The Faint Object Camera (f/96) was used to make ultraviolet observations of the core region of globular cluster NGC-6397. ... The images were reported to be nominal, and no anomalies were noted. ... 3.5 Complete WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_03_04_94 -- 7.7 Кб -- 07.03.1994
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10. Продам фильтр Baader UHC-S Nebula Filter 1,25" - 2100 руб. - Общая
Общая Астрономическая Конференция > Товары для астрономов > Барахолка . Продам фильтр Baader UHC-S Nebula Filter 1,25" - 2100 руб. ... Лунные феномены (редкие, необычные явления) Жизнь астрономов-любителей Анонсы астрономических мероприятий Астрономические клубы Наш "Старлаб" . ... Продам фильтры Baader 1,25" H-a (35 нм) и OIII . ... Применение фильтров. ... De Ch. ?20 - отражательная туманность Messier 17 Omega Nebula / Swan Nebula (NGC 6618) в созвездии Стрелец (Sagittarius) + . ...
[ Сохраненная копия ]  Ссылки http://www.starlab.ru/showthread.php?t=24922 -- 43.0 Кб -- 11.04.2016
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11. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/NGC4881.txt
COLOR PRINT OF NGC 4881 AND PART OF THE SURROUNDING FIELD This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. ... It is a 13th-magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. ... We must find that peak ("turnover") in NGC 4881 in order to judge the distance. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/NGC4881.txt -- 4.1 Кб -- 04.03.2001
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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
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13. ASP: NGC Images on the Net
... Non-NGC Images . ... Globular cluster in Scorpius (M80)..... image ..... caption . ... Globular cluster in Scorpius (M4)..... image ..... caption . ... Globular cluster in Oph (M107)..... image ..... caption . ... Nebula..... image . ... Globular cluster in Hercules (M13)..... image ..... caption . ... Globular cluster in Ophiuchus (M12)..... image ..... caption . ... Infrared-bright galaxy in Ophiuchus..... image ..... caption . ... Globular cluster in Ophiuchus (M10)..... image ..... caption . ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/resources/ngc4.html -- 48.3 Кб -- 03.01.2012
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14. Types of Nebulae
... We sometimes use the word "nebula" to refer to galaxies, various types of star clusters and various kinds of interstellar dust/gas clouds. ... Early in this century, there was a great debate as to the nature of the nebulae like this one which at that time could not be resolved into individual stars. ... A typical galaxy is 100,000 light-years in diameter. ... M 42 shown) Reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. ... M 1 shown) . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/twn/types.html -- 7.8 Кб -- 01.10.2012
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15. University of Louisville Wide Field and Planetary Telescopes
... In typical nightly use, the wide field and planetary telescope and cameras record images of favorably placed objects in the sky, including constellations, bright variable stars, nebulae through narrow-band filters, comets, the Moon, and planets. ... Shared Skies telescopes are available for use by students at the University of Louisville and the University of Southern Queensland, and by teachers and students in middle and high schools mentored by faculty at the universities. ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/moore/wide_field/index.html -- 4.4 Кб -- 07.12.2013
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16. Combining Region and Table Filters
This document discusses the conventions for combining region and table filters, especially with regards to the comma operator. Filter specifications consist of a series of boolean expressions, separated by commas. ... Region and table filters can be combined: foo.fits[circle(10,10,3),pi=1:5] or even: foo.fits[pha==1 (10,10,3),pi==2 (20,20,8,5)] In these cases, it is not obvious whether the command should utilize an or or and operator. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/RD/funtools/combo.html -- 4.3 Кб -- 01.10.2012
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17. Amateur Telescope Makers of Boston
... NGC 281 (Sharpless 184) is a bustling cradle of star formation about 10,000 light years away. ... The central stars are being formed from the surrounding gas, which emits a large amount of hydrogen alpha (Ha) light after being excited by stellar radiation. ... The dark areas overlaying the brighter ones in the middle of the image are dense clouds of gas known as Bok Globules. ... 4) Image registration . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
[ Сохраненная копия ]  Ссылки http://www.atmob.org/gallery/showimage.php?id=793 -- 5.6 Кб -- 09.04.2016
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18. Automated Globular Cluster Photometry with DASHA
... We describe a tool in the PCIPS environment for finishing the job of globular cluster photometry started by DAOPHOT II: starting with the instrumental magnitudes derived by DAOPHOT II, DASHA can automatically produce final color-magnitude diagrams. ... DASHA can automate the whole process of globular cluster photometry, from instrumental magnitude lists produced by DAOPHOT II, to final color-magnitude diagrams. ... DASHA is oriented towards star lists produced by DAOPHOT II as source data. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/smirnovo2.html -- 13.1 Кб -- 03.11.2000
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19. Stage Three: ``filter''
... The third processing stage filters the combined event list to produce the filtered event list, which contains the collection of node-specific exposure maps. ... Combining the event filtering with exposure map construction in one step assures mutual consistency. ... If the original combined event list is missing (as, for example, in the PPS) the original filtered event list is acceptable as a substitute if no changes have been made to the original attitude and housekeeping GTI. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/rgsproc/node19.html -- 6.4 Кб -- 15.11.2007
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20. SCORPIO: IFP Gallery
IFP gallery SCORPIO (since 2000). Here some data observed on the 6m telescope with IFP installed in the SCORPIO focal reducer are presented. ... Velocity field . Mkn 1157 was observed 1 Sep. 2002 in the Ha emission line. Texp =32x240 sec, seeing 1.5", IFP260. ... This galaxy was observed September, 23 2000 in the Ha emission line, Texp=32x120 sec, seeing 2.5", IFP260. ... PV Cep was observed at the 6m telescope in May, 25 2003 in the [SII] 6716A with IFP501, Texp=36x200 sec, seeing 1.0". ...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/lsfvo/devices/scorpio/galleries/gal_ifpnew.html -- 7.0 Кб -- 28.12.2007
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/lsfvo/devices/scorpio/galleries/gal_ifpnew.html -- 7.0 Кб -- 11.09.2010
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/lsfvo/devices/scorpio/galleries/gal_ifpnew.html -- 7.0 Кб -- 02.10.2012
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