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AG Pegasi
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AG Pegasi is a symbiotic binary star in the constellation Pegasus. It is a close binary composed of a red giant and white dwarf, estimated to be around 2.5 and 0.6 times the mass of the Sun respectively. Initially a magnitude 9 star, AG Pegasi brightened and peaked at an apparent magnitude of 6.0 around...
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48 Persei
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48 Persei (also known as c Persei, 48 Per, HR 1273, HIP 19343, or HD 25940) is a Be star in the constellation Perseus, Read more
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V850 Centauri
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Title: Optical spectroscopy of the Be/X-ray Binary V850 Cen/GX 304-1 during faint X-ray periodical activity Author: C. Malacaria, W. Kollatschny, E. Whelan, A. Santangelo, D. Klochkov, V. McBride, L. Ducci Be/X-ray binaries are the most populous class of High Mass X-ray Binaries. Their X-ray d...
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EPIC 203926424
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On the Origin of the Spiral Morphology in the Elias 227 Circumstellar Disk Read more (PDF)
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RX J0103.6-7201
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Title: Discovery of a 26.2 day period in the long-term X-ray light curve of SXP 1323: a very short orbital period for a long spin period pulsar Author: Stefania Carpano, Frank Haberl, Richard Sturm Context. About 120 Be/X-ray binaries (BeXBs) are known in the Small Magellanic Cloud (SMC); about hal...
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HESS J1616-508
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Title: Chandra Observations of the field containing HESS J1616-508 Author: Jeremy Hare, Oleg Kargaltsev, George G. Pavlov, Blagoy Rangelov, Igor Volkov We report the results of three Chandra observations covering most of the extent of the TeV gamma-ray source HESS J1616-508 and a search for a lo...
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Nova Cen 2013
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Bright star explosion near the Southern Cross Australian amateur astronomer John Seach who lives on Chatsworth Island, which is between Grafton and Lismore in northern NSW, has discovered a star explosion known as a nova near one of the pointers to the Southern Cross. At last report Nova Cen 2013 wa...
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Swift J1357.2-0933
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Simulation of the vertical obscuring structure in Swift J1357.2--0933
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LHS 1140
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Newly Discovered Exoplanet May be Best Candidate in Search for Signs of Life An exoplanet orbiting a red dwarf star 40 light-years from Earth may be the new holder of the title "best place to look for signs of life beyond the Solar System". Using ESO's HARPS instrument at La Silla, and other telescopes...
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HH 212
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The onset of an extra-solar system - feeding a baby star with a dusty hamburger An international research team, led by Chin-Fei Lee in Academia Sinica Institute of Astronomy and Astrophysics (ASIAA, Taiwan), has made a new high-fidelity image with the Atacama Large Millimeter/submillimeter Arr...
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PNV J09551279+6900093
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ATel 10290: Discovery of a Probable Nova in M81
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KIC 9832227
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Double star may light up the sky as rare red nova in six years A dim binary star is behaving exactly as expected if it is about to explode as a "red nova". If that happens, in 2022 or so it could shine as brightly as the North Star. Dozens of ordinary novae - the temporary flare-ups of white dwarf stars steali...
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Corona Borealis
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Corona Borealis and Bootes
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Messier 39
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Messier 39 (also M39, NGC 7092, Collinder 438, Melotte 236 and OCL 211) is a magnitude +4.6 open star cluster located 824.4 light-years away in the constellation Cygnus. The first discovery was made by Aristotle 325 BC. With good observing conditions the 30 stars comprising the cluster can be seen...
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MASTER OT J104028.45-460838.8
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ATel 10278: MASTER-SAAO: PSN in PGC141503
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