Title: HD 135344B: a young star has reached its rotational limit Authors: André Müller (ESO, MPIA), Mario van den Ancker (ESO), Ralf Launhardt (MPIA), Jörg-Uwe Pott (MPIA), Davide Fedele (Johns Hopkins University), Thomas Henning (MPIA) We search for periodic variations in the radial velocity...
Title: The young binary HD 102077: Orbit, spectral type, kinematics, and moving group membership Author: Maria Wöllert, Wolfgang Brandner, Sabine Reffert, Joshua E. Schlieder, Maren Mohler-Fischer, Rainer Köhler, Thomas Henning The K-type binary star HD 102077 was proposed as a candidate me...
A team led by a Yale University astronomer has discovered the least luminous, most dark matter-filled galaxy known to exist. The galaxy, called Segue 1, is one of about two dozen small satellite galaxies orbiting our own Milky Way galaxy. The ultra-faint galaxy is a billion times less bright than th...
The 32 - 71 metre wide asteroid 2014 DF23 made a close pass (17.9 lunar distances, 0.0459 AU), travelling at 6.18 km/second, to the Earth-Moon system on the 27th February, 2014 @ 16:47 UT ±00:05. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 A...
Archaeological researchers at the University of Groningen have discovered that the aurochs, the predecessor of our present-day cow, lived in the Netherlands for longer than originally assumed. Remains of bones recently retrieved from a horn core found in Holwerd (Friesland), show that the au...
NGC 2817 (also IRAS 09146-0432, MCG -1-24-6 and PGC 26223) is a magnitude +13.0 barred spiral galaxy located 162 million light-years away in the constellation Hydra. The galaxy was discovered by American astronomer Lewis Swift using a 40.6 cm (16 inch) Alvan Clark and Sons refractor at the Warner...
NGC 2821 (also ESO 497-34, IRAS 09145-2636, MCG -4-22-7 and PGC 26192) is a magnitude +13.1 barred spiral galaxy located 112 million light-years away in the constellation Pyxis. The galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at t...
NGC 3312 (also IC 629, ESO 501-43, IRAS 10346-2718, MCG -4-25-39 and PGC 31513) is a magnitude +11.9 spiral galaxy located 133 million light-years away in the constellation Hydra. The galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at...
NGC 3316 (also NGC 3316-1, ESO 501-54, MCG -4-25-46 and PGC 31571) is a magnitude +12.7 barred spiral galaxy located 181 million light-years away in the constellation Hydra. The galaxy lies close to NGC 3316-2 The galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch)...
NGC 3542 (also IRAS 11071+3712, MCG 6-25-13 and PGC 33868) is a magnitude +14.2 barred spiral galaxy located 418 million light-years away in the constellation Ursa Major. The galaxy was discovered by French astronomer Édouard Jean-Marie Stephan using a 80.01 cm (31.5 inch) reflector at the Mars...
NGC 3545 (also NGC 3545A, MCG 6-25-17 and PGC 33894) is a magnitude +13.8 elliptical galaxy located 398 million light-years away in the constellation Ursa Major. The galaxy lies close to NGC 3545B The galaxy was discovered by French astronomer Edouard Jean-Marie Stephan using a 80.01 cm (31.5 inc...
NGC 5085 (also ESO 508-50, IRAS 13175-2410, MCG -4-32-5, UGCA 349 and PGC 46531) is a magnitude +11.7 spiral galaxy located 90 million light-years away in the constellation Hydra. The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum r...
NGC 6174 (also MCG 7-34-82 and PGC 58334) is a magnitude +14.0 elliptical galaxy located 379 million light-years away in the constellation Hercules. The galaxy was discovered by astronomer George Johnstone Stoney, assistant to Irish astronomer William Parsons using a 182.88 cm (72 inch) specul...
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