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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Mean Time Astronomical Clock by Shelton. ... Typical substantial ' Shelton ' style movement with six latched pillars, but now with a number of 19th century alterations.The movement now has a four wheel, 8 day train, a jewelled dead beat escapement and Harrison's maintaining power.The movement was originally month going with a five wheel train, the great/winding arbor positioned where the centre of the hour ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...

... S. Beckwith ( STScI ), Hubble Heritage Team , (STScI/ AURA ), ESA , NASA . Additional Processing: Robert Gendler Explanation: The 51st entry in Charles Messier's famous catalog is perhaps the original spiral nebula - a large galaxy with a well defined spiral structure also cataloged as NGC 5194. Over 60,000 light-years across, M51's spiral arms and dust lanes clearly sweep in front of its companion galaxy (right), NGC 5195 . ... Publications with keywords: M 51 - spiral galaxy . ...

... Historical Background VizieR was first presented at the AAS meeting in early 1996 (Ochsenbein et al. 1995), as the result of a joint e#ort between CDS 2 and ESA­ESRIN 3 (the European Space Agency's Information Systems division) in order to provide the astronomical community with a dedicated tool for retrieving astronomical data listed in published catalogs and tables --- a follow­up of the ESIS (European Space Information System) project. ... Locate the interesting catalogs in the VizieR Service 5 ....