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1. Sunspots and active regions September 09, 2009
... Sun images . ... Sun flares . ... Active areas . September : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates . ... Coordinates and other characteristics of active regions are issued for September 09, 2009 00:31 UT . Last updated: September 10, 2009 00:00 UT . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...
[ Сохраненная копия ]  Ссылки http://www.tesis.lebedev.ru/en/active_areas.html?m=9&d=9&y=2009 -- 17.0 Кб -- 11.04.2016
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2. The Active Algol Binary KZ Pavonis
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Active Algol Binary KZ Pavonis . ... The Algol type eclipsing binary KZ Pav has been observed over one complete orbit (0.95 days) with the Australia Telescope Compact Array. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/pasa/18_2/budding/paper/index.html -- 51.8 Кб -- 08.04.2016
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3. http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20141110.en.txt
Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 03 - 09.11.2014, Forecast on 10 - 17.11.2014, Carrington Rotations 2156, 2157 (15,00.10; 11.30.11.2014) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL. ... NEXT WEEK THE AVERAGE LEVELS OF SUNSPOT FORMING ACTIVITY IS EX- PECTED. ... FLARE ACTIVITY WAS AT THE HIGH LEVEL AT 3, 5-7.11, MIDDLE LEVEL - 4 AND 9.11, AND THE LOW - 8.11. ... IN CASE OF EMERGENCE OF THE NEW MAGNETIC FLUX LARGT FLARES ARE POSSIBLE IN AR12205. ...
[ Сохраненная копия ]  Ссылки http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20141110.en.txt -- 6.6 Кб -- 10.11.2014
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4. Centaurus A: X-Rays from an Active Galaxy
Astronomy Picture of the Day . Centaurus A: X-Rays from an Active Galaxy . ... The diffuse high-energy glow represents gas throughout the galaxy heated to temperatures of millions of degrees C. At 11 million light-years distant in the constellation Centaurus , Centaurus A (NGC 5128) is the closest active galaxy . ... Publications with keywords: Centaurus A - NGC 5128 - active galaxy . Publications with words: Centaurus A - NGC 5128 - active galaxy . ... Hubble Remix: Active Galaxy NGC 1275 . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1191425 -- 15.8 Кб -- 05.07.2003
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5. Active galaxies and black holes
Black holes . ... Black holes are objects for which the gravitational attraction is so strong that nothing, not even light, can escape from it. ... The material inside a black hole is concentrated into a singularity: a single point of infinitely high density where space and time are infinitely distorted. ... The existence of such black holes has been inferred in cases where the black hole pulls gas of a companion star that orbits around it. ... Gravity's Fatal Atraction: Black Holes in The Universe. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~marel/abstracts/abs_L4.html -- 5.8 Кб -- 02.04.2001
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6. Visiting with an Old and Active Friend (ESO PR Photos 07a-b/01)
... ESO PR Photo 07a/01 . ... ESO PR Photo 07b/01 . ... Caption : PR Photo 07a/01 shows Comet Hale-Bopp , still active at a distance of nearly 2,000 million kilometres from the Sun. ... This is quite unusual for a comet and is clearly confirmed on the present photo ( PR Photo 07a/01 ) from the WFI camera on the MPG/ESO 2.2-m telescope at La Silla, obtained a few days ago. ... ESO-Chile . ... ESO PR Photos 07a-b/01 may be reproduced, if credit is given to the European Southern Observatory (ESO). ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~ohainaut/nice/hb_2001mar.html -- 13.0 Кб -- 07.03.2001
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7. APOD: 2003 July 5 - Centaurus A: X-Rays from an Active Galaxy
... 2003 July 5 . Centaurus A: X-Rays from an Active Galaxy . ... CXO , NASA . ... Astronomers were not disappointed, as Centaurus A's appearance in x-rays makes its classification as an active galaxy easy to appreciate. ... Blasting toward the upper left corner of the picture, the jet seems to arise from the galaxy's bright central x-ray source -- suspected of harboring a black hole with a million or so times the mass of the Sun. ... About APOD | ... NASA Official: Jay Norris. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap030705.html -- 5.4 Кб -- 02.10.2012
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8. http://www.iki.rssi.ru/apetruko/forecast/data/RSGA.txt
Product: Report of Solar-Geophysical Activity :Issued: 2016 Apr 08 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. ... Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. ... Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/apetruko/forecast/data/RSGA.txt -- 2.9 Кб -- 08.04.2016
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/forecast/data/RSGA.txt -- 2.9 Кб -- 08.04.2016
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9. Armagh Observatory
... Data is taken from Hilton (2011): Active M3-M5, 332 hours on 4 stars observing 157 flares; Active M6-M8, 59 hours on 4 stars observing 39 flares; Less Active M3тАУM5, 147 hrs on 8 stars observing 28 flares; Inactive M0-M2, 256 hours on 16 stars observing 9 flares; Inactive M3-M5, 153 hours on 6 stars observing 3 flares; Active M0-M1, data from Moffett (1974), Doyle Mathiouidakis (1990) and Dal Evren (2011), 156 hours on 2 stars observing 63 flares. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/highlights/2015/666.html -- 6.4 Кб -- 18.03.2015
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10. active galactic nuclei | Astronomy.com
... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... active galactic nuclei . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/tags/active-galactic-nuclei -- 56.5 Кб -- 09.04.2016
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11. Relations
... Mindful of these biases, I can now explore the relations between the measured rotation periods and various other observables. The hypothesis behind monitoring stellar variability is that active stars have asymmetric spot distributions on their photospheres. ... They found that only stars with rotation periods greater than seven days show variations greater than 0.4 magnitudes at I. Bouvier et al . ... 1993a) demonstrated a relation between X--ray flux and spectral type in ZAMS stars. ...