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HD 164349
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93 Herculis (HD 164349) is a magnitude +4.67 orange giant star located 656 light-years away in the constellation Hercules. Date: 18.04.15 Look for the nice snaking trail of stars that contains two striking blue-orange stars nearby. 10 x 4 second frames captured with a 8" f5 reflector and Ca...
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Zeta Cygni
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The yellow giant star Zeta Cygni (HD 202109) is located in the constellation Cygnus. Zeta Cygni is a binary star, the secondary is a white dwarf. The pair orbit each other every 6,489 days (17.8 years), Date: 18.04.15 The pleasantly contrasting blue star (upper right) is HD 201490. 32 x 4 second fra...
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Alpha Vulpeculae
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The magnitude +4.44.red giant Alpha Vulpeculae is approximately 297 light years from Earth. It forms a wide optical binary with 8 Vulpeculae. Date: 18.04.15 7 x 4 second frames captured with a 8" f5 reflector and Canon EOS 350D. Motorised EQ5 Mount. Prime focus.
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BD+30 3639
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X-ray image of the Planetary Nebula BD+30 3639 (also Campbell's Star, Hen 2-438 and HD 184738) The Chandra image shows a hot bubble of 3 million degree Celsius gas surrounding a dying, Sun-like star that is about 5000 light years from Earth. The distance across the bubble is roughly 100 times the di...
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DK Cygni
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Title: The Physical Nature and Orbital Behavior of the Eclipsing System DK Cygni Author: Jae Woo Lee, Jae-Hyuck Youn, Jang-Ho Park, Marek Wolf New CCD photometry is presented for the hot overcontact binary DK Cyg, together with reasonable explanations for the light and period variations. Histor...
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Zeta Lyrae
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Zeta 1 and 2 (HD 173648 and HD 173649) Lyrae is a wide double star, of magnitudes +4.3 and +5.7, located 156 light-years away in the constellation Lyra. RA 18:44:46, Dec +37:36:18 Blobs Lyra observing highlightsGoogle earth file: Lyra.kmz (7kb, kmz)
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IRAS 18059-3211
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Title: Very Large Telescope observations of Gomez's Hamburger: Insights into a young protoplanet candidate Author: O. Berne, A. Fuente, E. Pantin, V. Bujarrabal, C. Baruteau, P. Pilleri, E. Habart, F. Menard, J. Cernicharo, A. Tielens, C. Joblin Planets are thought to form in the gas and dust dis...
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WISE J061213.85-303612.5
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Title: WISE J061213.85-303612.5: a new T-dwarf binary candidate Author: N. Huélamo, V.D. Ivanov, R. Kurtev, J.H. Girard, J. Borissova, D. Mawet, K. Muzic, C. Cáceres, C.H.F. Melo, M. F. Sterzik, D. Minniti T and Y-dwarfs are among the coolest and least luminous objects detected, and they can help...
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Nova Ophiuchi 2015
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ATel 7339: Optical Spectroscopy of Nova Ophiuchi 2015 (PNV J17291350-1846120)
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XX Triangulum
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Title: Spot evolution on the red giant star XX Triangulum. A starspot-decay analysis based on time-series Doppler imaging Author: A. Künstler, T. A. Carroll, K. G. Strassmeier Solar spots appear to decay linearly proportional to their size. The decay rate of solar spots is directly related to mag...
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ASASSN-15fd
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ATel 7313: ASASSN-15fd: A Possible Nova in the LMC
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V4046 Sagitarii
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Title: The close T Tauri binary system V4046 Sgr: Rotationally modulated X-ray emission from accretion shocks Authors: C. Argiroffi (1,2), A. Maggio (2), T. Montmerle (3), D. P. Huenemoerder (4), E. Alecian (5), M. Audard (6,7), J. Bouvier (8), F. Damiani (2), J.-F. Donati (9), S. G. Gregory (10),...
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Kappa Andromedae
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Title: Direct Imaging Discovery of a 'Super-Jupiter' Around the late B-Type Star Kappa And Authors: J. Carson, C. Thalmann, M. Janson, T. Kozakis, M. Bonnefoy, B. Biller, J. Schlieder, T. Currie, M. McElwain, M. Goto, T. Henning, W. Brandner, M. Feldt, R. Kandori, M. Kuzuhara, L. Stevens, P. Wong,...
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Swift J201424.9+152930
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Title: Swift J201424.9+152930: discovery of a new deeply-eclipsing binary with 491 s and 3.4 h modulations Author: P. Esposito, G. L. Israel, D. de Martino, P. D'Avanzo, V. Testa, L. Sidoli, R. Di Stefano A. Belfiore, M. Mapelli, S. Piranomonte, G. A. Rodríguez Castillo, A. Moretti, V. D'Elia, F. V...
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HD 94509
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Title: The Puzzling Spectrum of HD 94509 Author: C. R. Cowley, N. Przybilla, S. Hubrig The spectral features of HD 94509 are highly unusual, adding an extreme to the zoo of Be and shell stars. The shell dominates the spectrum, showing lines typical for spectral types mid-A to early-F, while the prese...
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