... Tonight's Sky . ... Observing . ... solar system . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observe the Solar System . Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Solar corona revealed in super-high definition . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• NASA describes Hubble fix | Astronomy.com
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• cosmic microwave background | Astronomy.com

... Average effective wavelengths and band widths for various sp ectra Lyrae spectrum f flat k е 1014 Hz 5386 ± 18 4.66 ± 0.04 5714 ± 12 4.1 6234.5 ± 0.5 1.03 5372 ± 18 4.69 ± 0.04 eff 2 Optical Filter ID 1 2 3 4 a Fo c -6 10 erg/cm2 s 12.55 ± 0.10 11.04 ± 0.01 2.77 ± 0.004 12.63 ± 0.10 fo d 6 10 photons/cm2 s 3.40 ± 0.02 3.18 ± 0.004 0.87 ± 0.002 3.42 ± 0.02 Power-law eff f 2 е 5746 ± 317 6197 ± 253 6305 ± 31 5736 ± 316 spectra pl k 1014 Hz 3.70 ± 0.26 3.14 ± 0.16 0.88 ± 0.01 3.70 ± 0.27 Table 1. ...

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• The NMW survey homepage

. Name . Last modified . Size . Description . Parent Directory . - . astronomy_calendar/ . 2004-03-06 16:10 . - . etudes_about_scientists/ . 2001-12-24 15:21 . - . fire_enthusiasts/ . 2001-12-20 21:24 . - . galaxies/ . 2002-11-22 13:50 . - . making_telescope_at_home/ . 2001-12-20 21:07 . - . return_from_space/ . 2001-08-29 13:13 . - . telescopes_for_amateur_astronomers/ . 2001-01-09 11:45 . - .

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• Index of /archive/books/astronomy_calendar
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... 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. ...

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... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

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. Composition | Objectives | Capabilities and samples | Request for work | Back to main page . If you have any questions, please contact us: rp@iszf.irk.ru . http://esceir.iszf.irk.ru/lchmen/skhema4en.htm . Last modification: 2.06.01.

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To see a Russian version of this page, click here . ... Graduated from Moscow State University (MSU), Faculty of Physics in 1976. Ph.D. degree - 1988, MSU. Main field of scientific activities: photometric investigations of various stars, close binary stellar systems and other astronomical objects, including research with use of fast photoelectric photometry with a high time resolution till 1 millisecond. ... New portable photometer . ... Send your mail to: tem@sai.msu.ru ...

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On properties of metallicity function of F-stars in the galactic disk . Yu.Shevelev & V.Marsakov . ... MF of different age disk stars . ... Age-metallicity relation . ... Based on the complete sample from ( Marsakov & Shevelev, 1995a ) we determined in ( Shevelev & Marsakov, 1995 ) the vertical metallicity gradients of disk population stars in several narrow age ranges from the observed metallicity values and the calculated maximum distances of their orbits from the galactic plane. ...

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• URSI-99 Poster on Phase Structure Function
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... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

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• Astronomical Glossary - J thru M
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... Home Articles Observing Resources for Amateur Astronomers ? Part 1: Beginning Observers Observing Resources for Amateur Astronomers ? Part 3: Advanced Observers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . Observing Resources for Amateur Astronomers - Part 4: Magazines and Miscellany . ...

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• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
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Электронная библиотека астронома-любителя. ... Ru.Space.News: . Апрель 1998 . ... FOR RELEASE: 9:00 a.m. (EDT) April 9, 1998 CONTACT: Ray Villard Space Telescope Science Institute, Baltimore, MD (Phone: 410-338-4514) PRESS RELEASE NO.: ... Дата: 13 апреля 1998 (1998-04-13) От: Alexander Bondugin Тема: Full Data Sets From Galileo's First Six Orbits Now Available Привет всем! ... Дата: 13 апреля 1998 (1998-04-13) От: Alexander Bondugin Тема: Sky Telescope News Bulletin - April 10, 1998 Привет всем! ...

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• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 22 декабря

Name Last modified Size Description . Parent Directory - Ionosphere/ 06-May-2009 16:25 - Magnetosphere/ 30-Mar-2009 19:54 - Magnetospheric boundaries/ 30-Mar-2009 19:54 - Photo uchastnikov1.JPG 30-Mar-2009 19:54 1.3M Photo uchastnikov2.JPG 30-Mar-2009 19:54 1.2M Plasma physics theory/ 06-Apr-2009 14:56 - Solar wind/ 30-Mar-2009 19:54 - The Sun/ 06-Apr-2009 14:57 - Turbulence and chaos/ 08-Apr-2009 19:27 - .

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• Index of /txt/2010/presentations
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п'? . Date : 30/05/2014 . D partement : 24 . Coupole Scopedome achetГїe chez M42 optique, neuve, jamais montГїe. ComplГЕte, emballГїe. voir sur le site M42 optique la description. FAIRE OFFRE par mail ( m.p.balland@wanadoo.fr ) . PrГїvoir transport ( 3m de diamГЕtre en deux demi-sphГЕres, h 2,40 m) . Prix : . Contacts : . M. Marc Balland . 11 Rue Emile ZOLA / 24210 / THENON . 0553350206

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RECREATIONAL TELESCOPES . ... TELESCOPE ACCESSORIES . ... Astele™ 60, 70, 95, 133.5 . ... German Equatorial Mount for Astele™ 133.5, 150, 102MN . Astele™ 102MN, 133.5, 150 . ... German Equatorial Mount for Astele™ 180, 203,152MN, 203MN . ... Astele™ 95, 102MN, 133.5, 150, 152MN, 203MN . ... Photo Adapter for Astele™ 133.5,150,180, and 203 . Astele™ 133.5, 150, 180, 203 . ... Astele™ 60, 70, 95, 102MN, 133.5, 150, 152MN, 180, 203, 203MN . ... Eyepiece Adapter, 2" – 1.25", Astele™ 152MN, 203MN . ...

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• OEM Components
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... Parent Directory 05-Aug-2008 17:34 - 66ophN_1.eps 15-Apr-2008 13:18 187k 66ophN_2.eps 15-Apr-2008 13:18 188k 66ophN_3.eps 15-Apr-2008 13:18 193k 66ophN_4.eps 15-Apr-2008 13:18 182k 66ophN_5.eps 15-Apr-2008 13:18 147k 66ophS_art_1.eps 10-Jun-2009 05:08 91k 66ophS_art_2.eps 10-Jun-2009 05:08 97k 66ophS_art_3.eps 10-Jun-2009 05:08 97k 66ophS_art_4.eps 10-Jun-2009 05:09 100k 66ophS_art_5.eps 10-Jun-2009 05:09 102k 66ophS_art_6.eps ...

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• Index of /groups/cluster/gcvs/gcvs/nl

THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...

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• http://selena.sai.msu.ru/Pug/Publications/m44_70_pugacheva.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms083.pdf

Advances in Space Research 36 (2005) 1595­1603 www.elsevier.com/locate/asr Solar origins of intense geomagnetic storms in 2002 as seen by the CORONAS-F satellite O. Panasenco a,*, I.S. Veselovsky a,b, A.V. Dmitriev a,h, A.N. Zhukov a,i, O.S. Yakovchouk a, I.A. Zhitnik c, A.P. Ignatуev ... 2002; Huttunen et al., ... Event 279 This is a member of another vast recurrent series of geomagnetic storms observed during many solar rotations in the second half of 2002 and the spring of 2003. ...

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Клуб Скептиков] [Конференция] . ... Хеймдалль : re: Насчет материализма . ... Юрий Тихонравов Скептицизм и атеизм Alex re: Скептицизм и атеизм 23-Июн (10:02) Юрий Тихонравов re: Скептицизм и атеизм 23-Июн (10:20) Alex re: Скептицизм и атеизм 23-Июн (10:40) Юрий Тихонравов re: Скептицизм и атеизм 23-Июн (11:02) Alex re: Скептицизм и атеизм 23-Июн (12:06) Юрий Тихонравов re: Скептицизм и атеизм (+) 23-Июн (13:02) Alex re: Скептицизм и ...

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• ASTROLOGY IS AN EXCELLENT MEANS FOR BRAINWASHING

My colleagues and I have recently completed a series of observations of SN1999an. ... The telescope is located at Martin Observatory in Blacksburg, VA, and is operated by the Physics Department of Virginia Tech. Our IAU Minor Planet Center Observatory Code is 841. ... Attached you will find a copy of one of our images (in .jpg format) with the supernova indicated. ... Virginia Tech Department of Physics . Back to Bright Supernovae . Back to Supernova 1999an . ...

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• ASRAS HOME
• Supernova 1998ey in NGC 7080