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Gamma Cassiopeiae
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Title: Rotational and Cyclical Variability in gamma Cassiopeiae. II. Fifteen Seasons Authors: Gregory W. Henry, Myron A. Smith The B0.5IVe star gam Cas is of great interest because it is the prototype of a small group of classical Be stars having hard X-ray emission of unknown origin. We discuss re...
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Gaia14aat
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ATel 6581: Spectroscopic classification of Gaia14aat: Hydrogen-rich Dwarf Nova
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NGC 18
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NGC 18 is a magnitude +13.4 and +13.6 double star located near to NGC 16 in the constellation Pegasus. The double star was discovered by Swedish astronomer Per Magnus Herman Schultz using a 24.38 cm (9.6 inch) f/17.7 Steinheil refractor at the Uppsala Observatory, Sweden on the 15th October 1866. R...
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NGC 7076
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NGC 7076 (also Abell 75 and PK 101+08.1) is a magnitude +13.5 planetary nebula located in the constellation Cepheus. The planetary nebula was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Windsor Road in Slough, Berkshire on the 1...
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G11.92-0.61-MM2
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Title: G11.92-0.61-MM2: A Bonafide Massive Prestellar Core? Author: C. J. Cyganowski, C. L. Brogan, T. R. Hunter, D. Graninger, K. I. Oberg, A. Vasyunin, Q. Zhang, R. Friesen, S. Schnee Core accretion models of massive star formation require the existence of stable massive starless cores, but ro...
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OGLE-BLG182.1.162852
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Title: OGLE-BLG182.1.162852: An Eclipsing Binary with a Circumstellar Disk Author: N. J. Rattenbury, L. Wyrzykowski, Z. Kostrzewa-Rutkowska, A. Udalski, S. Kozlowski, M. K. Szymanski, G. Pietrzynski, I. Soszynski, R. Poleski, K. Ulaczyk, J. Skowron, P. Pietrukowicz, P. Mróz, D. Skowron We p...
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X Persei
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Title: The hard X-ray emission of X Per Authors: V. Doroshenko, A. Santangelo, I. Kreykenbohm, R. Doroshenko We present an analysis of the spectral properties of the peculiar X-ray pulsar X Per based on INTEGRAL observations. We show that the source exhibits an unusually hard spectrum and is confi...
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NGC 733
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NGC 733 is a magnitude +15.3 star located in the constellation Triangulum. The star was discovered by Irish astronomer Bindon Blood Stoney, assistant to William Parsons 3rd Earl of Rosse, using the 'Parsonstown Leviathan' 182.88 cm (72 inch) reflector at Birr Castle on the 11th October 1850. Righ...
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NGC 737
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NGC 737 is a magnitude +12.2 line of three stars north of NGC 736 located in the constellation Triangulum. The asterism was discovered by Irish astronomer Bindon Blood Stoney, assistant to William Parsons 3rd Earl of Rosse, using the 'Parsonstown Leviathan' 182.88 cm (72 inch) reflector at Birr Ca...
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NGC 32
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NGC 32 (also GC 16) is a magnitude +13.5 optical double star located 400(?) light-years away in the constellation Pegasus. Some sources classify NGC 32 as a double star; the second component is a slightly fainter neighbouring star. The asterism was discovered by German astronomer Johann Friedric...
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NGC 402
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NGC 402 is a magnitude +13.6 star located in the constellation of Pisces. The star was discovered by Irish astronomer Lawrence Parsons, 4th Lord Rosse using a 182.88 cm (72 inch) speculum reflector at Birr Castle on the 7th October 1874. Right Ascension 01h 09m 13.4s, Declination +32° 48' 21"...
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NGC 7326
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NGC 7326 is a magnitude +14.0 pair of stars located in the constellation of Pegasus. The double star was discovered by Irish astronomer Lawrence Parsons, 4th Lord Rosse using a 182.88 cm (72 inch) speculum reflector at Birr Castle on the 7th October 1874. Right Ascension 22h 36m 52.1s, Declination...
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NGC 7564
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NGC 7564 is a magnitude +14.3 star located in the constellation Pisces. The star was discovered by French astronomer Guillaume Bigourdan using a 30.48 cm (12 inch) refractor at the Paris Observatory on the 7th October 1885. Right Ascension 23h 16m 01.1s, Declination +07° 20' 54"
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Y dwarf
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Title: The Luminosities of the Coldest Brown Dwarfs Author: C. G. Tinney, Jacqueline K. Faherty, J. Davy Kirkpatrick, Mike Cushing, Caroline V. Morley, Edward L. Wright In recent years brown dwarfs have been extended to a new Y-dwarf class with effective temperatures colder than 500K and masses i...
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IGR J17451-3022
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ATel 6533: Chandra Localization of IGR J17451-3022
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