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1. APOD: October 4, 1995 - The Sun Spews X-rays
... October 4, 1995 . The Sun Spews X-rays . Credit: Yohkoh Soft X-ray Telescope , ISAS , Japan . Explanation: Our Sun is really very hot. The Sun's outer atmosphere is so hot that it emits much light in the X-ray band, which was unexpected. X-rays are usually emitted from objects having a temperature in the millions of degrees, not the mere thousands of degrees of the Sun's surface. The above X-ray picture shows the Sun one particularly active day in August of 1992. ...
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Ссылки http://www.sai.msu.su/apod/ap951004.html -- 4.4 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sun/x-ray-sun.html -- 4.2 Кб -- 28.12.2000
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[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sun/x-ray-sun.html -- 4.2 Кб -- 28.12.2000
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2. 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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3. Impact Hazard
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...
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Ссылки http://star.arm.ac.uk/impact-hazard/ -- 11.3 Кб -- 29.06.2012
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4. The Sun Spews X-rays
Astronomy Picture of the Day . The Sun Spews X-rays . ... Credit: Yohkoh Soft X-ray Telescope , ISAS , Japan Explanation: Our Sun is really very hot. The Sun's outer atmosphere is so hot that it emits much light in the X-ray band, which was unexpected. X-rays are usually emitted from objects having a temperature in the millions of degrees, not the mere thousands of degrees of the Sun's surface. The above X-ray picture shows the Sun one particularly active day in August of 1992. ...
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Ссылки http://www.astronet.ru/db/xware/msg/apod/1995-10-04 -- 14.2 Кб -- 22.08.2002
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5. APOD: 2001 November 12 - Is Mystery Object an Orphan Afterglow
... 2001 November 12 . Is Mystery Object an Orphan Afterglow? ... SDSS , DOE , NSF , NASA . Explanation: What is that unusual object? ... Attributes of the object include that it has unusual colors , appears to be fading as months go by, and appears to be associated with a distant galaxy . ... A bit of caution might be merited, however, as the last well-publicized mystery object turned out not to be a new member of the astronomical zoo , but rather an unusual type of quasar . ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap011112.html -- 5.2 Кб -- 01.10.2012
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6. High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)
... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...
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Ссылки http://www.eso.org/~ohainaut/nice/pluto.html -- 8.5 Кб -- 18.08.2004
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7. The Mystery Object of M82 | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Our Galaxy . ... Stars . ... Space Flight . ... This activity is believed to be promoting the unusually high rate of star formation seen in M82. ... Radio image of M82 made with the MERLIN and VLA telescopes. Insets show MERLIN images from April 25th and May 3rd 2009 demonstrating the sudden appearance of the mystery object.€а All images are at a frequency of 5 GHz. ... Mystery object in Starburst Galaxy M82 . ...
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Ссылки http://www.armaghplanet.com/blog/the-mystery-object-of-m82.html -- 44.9 Кб -- 09.04.2016
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8. Terrestrial Silicates Compared to Astronomical Silicates
The silicates that produce the 10 and 18 micron features appear to be broadly similar to terrestrial minerals such as Forsterite and Enstatite. ... Where pre-solar silicate dust grains can be isolated from meteorite material, these also tend to be Mg-rich silicates rather than Fe-rich silicates. ... It has been suggested that the interstellar silicate grains have a different 10 micron feature profile than what is observed for the silicates around evolved stars. ...
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Ссылки http://www.stsci.edu/~volk/features1a.html -- 7.8 Кб -- 27.05.2014
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9. Very Low Mass PMS Objects
... Since the reddening found for the stars in Table 13 was small, no reddening correction was attempted. ... These diamonds indicate the positions of very low mass, 3 Myr old, objects from the work of Burrows et al. ... This optical V versus R - I scheme is a very powerful method of detecting very low mass (VLM) objects. ... Because of this, young brown dwarfs are intrinsically no more difficult to observe in the optical than low mass stars at the age of Orionis. ...
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Ссылки http://hea-www.harvard.edu/~swolk/thesis/optical/node11.html -- 8.5 Кб -- 02.10.2012
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10. IV International Astronomy Olympiad, Problems to solve
IV International Astronomy Olympiad . ... Text of these problems is available also . ... To solve every problem you may use constants and well-known values you know by heart. ... The apparent diameter of the Moon, as seen from the Earth, is 31'. ... Can you observe a star with magnitude . ... Consider the stars as black bodies. ... Estimate the diameter of a black hole constructed using this patent from a ship with the mass of 5000 tn (1 tn = 1000 kg). ... What stars would you observe this nigth? ...
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Ссылки http://www.issp.ac.ru/iao/1999/problems/vi99us_e.html -- 11.5 Кб -- 15.04.2011
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11. casacore: casa::LELCoordinates Class Reference
... casa::LELCoordinates . ... LELCoordinates ( LELLattCoordBase *coordinates) . Construct the object from the given letter class. ... This is via the LELCoordinates member function coordinates which returns a reference to the letter base class LELLattCoordBase . For example, if the actual letter class object was LELImageCoord , one has to then cast the reference returned by LELCoordinates::coordinates() to an LELImageCoord . ... const LELLattCoordBase & casa::LELCoordinates::coordinates . ...
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Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1LELCoordinates.html -- 27.6 Кб -- 14.02.2011
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12. Sky subtraction and object extraction
Next: About this document Up: Multi-Object Spectroscopy Previous: Rebinning . To define your object's and sky regions use DEFINE/MOS . By default it automatically averages ( 20 ) columns around the position ( center of frame ) of the frame and searches for objects in this averaged frame that have an intensity above ( -0.04 ) when compared to a median over ( 5 ) pixels. can be absolute ( > 0) or relative to the median intensity ( < 0). ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node692.html -- 5.2 Кб -- 23.02.1996
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13. Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology
... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...
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Ссылки http://www.sao.ru/Doc-en/SciNews/2016/Makarov/ -- 7.5 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2016/Makarov/ -- 7.5 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2016/Makarov/ -- 7.5 Кб -- 10.04.2016
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14. ASP: More About Deep Space Objects and Cosmic Terms
... SEARCH ASP SITE: Match ALL words Match ANY word . ... Astronomy . ... Hubble Space Telescope Images: http://hubblesite.org/newscenter/newsdesk/archive/releases/image_category/ . ... The Chandra x-ray telescope (in orbit around Earth) has been sending back a wide range of images of what deep space objects would look like if seen with "x-ray sensitive" eyes. ... Web Sites for Asking Astronomy Questions . ... Ask an Astronomer for Kids: http://coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/index.shtml...
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Ссылки http://www.astrosociety.org/edu/family/resources/deepspace2.html -- 25.7 Кб -- 02.10.2012
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15. 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. ...
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Ссылки http://www.badastronomy.com/info/whois.html -- 22.3 Кб -- 09.04.2016
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16. On the problem of high spectral resolution observations of faint objects
... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...
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Ссылки http://mavr.sao.ru/hq/ssl/PFES/pan2.html -- 4.1 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/PFES/pan2.html -- 4.1 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/PFES/pan2.html -- 4.1 Кб -- 01.10.2012
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17. Classification of Objects in the Guide Star Catalog
... Next: Object Detection Using Up: Object Detection and Previous: Automated Classification of . ... A status report of the The GSC Object Classifier (GOC) project is presented. ... The GSC contains multiple entries for some objects due to plate overlap. It classifies objects as stars, non-stars, galaxies, blends and potential artifacts; the latter three classifications are rare, and only exist in GSC version 1.1, to which they were added manually. ... star, . ... non-star, . ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/malkovo1.html -- 10.6 Кб -- 03.11.2000
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18. AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 ? Amateur
... Home Education Classes AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ...
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Ссылки http://www.aaa.org/education/classes/aaaa-fall-astronomy-class-astronomy-basics-october-november-2015/ -- 99.8 Кб -- 10.04.2016
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19. http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200610/Plucinsky.pdf
Chandra X-Ray Observatory CXC 1. ... BI CCD CTI Correction for ACIS Paul Plucinsky, Dan Dewey, & Joseph DePasquale 1 Paul Plucinsky EPIC Cal October 2006 Chandra X-Ray Observatory Gratuitous Pretty Pictures of E0102 S3 Summed Data ~100 ks CXC RGS Spectrum (Pollock 2006) Objective: develop a spectral model which can be used by RGS, HETG, EPIC & ACIS, etc. Paul Plucinsky 2 EPIC Cal October 2006 Chandra X-Ray Observatory What's New Since the Iceland 2006 Meeting? ...
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Ссылки http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200610/Plucinsky.pdf -- 1174.9 Кб -- 14.05.2014
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20. Index of /shared_skies/archive/select/unusual/hoags_object
Name Last modified Size Description . Parent Directory - 20110412/ 2013-04-22 17:18 - 20130412/ 2013-04-22 17:07 - . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80
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Ссылки http://www.astro.louisville.edu/shared_skies/archive/select/unusual/hoags_object/ -- 2.0 Кб -- 10.04.2016
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