August 2019 Night Sky

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TheSky (c) Astronomy Software 1984-1998 URSA MINOR Night sky mapDRACO August 2019 North STAR BRIGHTNESS Zero or brighter Deneb 1st magnitude nd CYGNUS 2 NE CANES VENATICI rd Vega 3 LYRA NW 4th CORONA BOREALIS HERCULES BOOTES VULPECULA Arcturus SAGITTA COMA BERENICES DELPHINUS SERPENS Altair Barnard’s star EQUULEUS OPHIUCHUS First quarter AQUILA Moon on 8th SCUTUM SERPENS VIRGO LIBRA Saturn Jupiter Zubenelgenubi Spica P East P Antares SAGITTARIUS Centre of the Galaxy M6 CORVUS M7 CAPRICORNUS SCORPIUS Teapot NGC 6231 CRATER West LUPUS AQUARIUS CORONA AUSTRALIS MICROSCOPIUM NORMA Centaurus A ARA Omega Centauri TELESCOPIUM CENTAURUS CIRCINUS PISCIS AUSTRINUS Alpha Centauri Hadar POINTERS INDUS Jewel Box Mimosa PAVO TRIANGULUM AUSTRALE SOUTHERN CROSS HYDRA Coalsac CRUX APUS GRUS MUSCA ANTLIA OCTANS South Celestial Pole 47 Tucanae CHAMAELEON VELA TUCANA SMC SCULPTOR CHART KEY MENSA CARINA PYXIS SE PHOENIX HYDRUS VOLANS Bright star SW Faint star Achernar LMC MOON PHASE Ecliptic Milky Way New Moon 01st DORADO Celestial Equator RETICULUM First quarter 08th P Planet PUPPIS Full Moon 15th LMC or Large Magellanic Cloud HOROLOGIUM Canopus Last quarter 24th SMC or Small Magellanic Cloud South New Moon 30th PICTOR THE CHART HIGHLIGHTS IN AUGUST 2019 Adhara The star chart shows the starsFORNAX and constellations visible in The best time to look at the moon with a small the night sky for Sydney, Melbourne, Canberra, Hobart telescope or binoculars is a few days either side of its CAELUM CANIS MAJOR and Adelaide for August at about 7:30 pm (local standard first quarterCOLUMBA phase, which falls on the 8th. This month time). For Darwin and similar northerly locations, the chart there are two bright planets in the evening sky: Jupiter will still apply, but some stars will be lost off the southern high in the north in the constellation Ophiuchus and edge while extra stars will be visible to the north. Stars Saturn in the northeast in the constellation of down to a brightness or magnitude limit of 4.5 are shown Sagittarius. High in the sky are the constellations on the star chart. To use this star chart, rotate the chart so Sagittarius (the Archer), Scorpius (the Scorpion) and that the direction you are facing (north, south, east or west) Crux (the Southern Cross). When viewing the night is shown at the bottom. The centre of the chart represents sky from a dark location, it may be possible to see the the point directly above your head, called the zenith point, white glow of our own galaxy, the Milky Way. and the outer circular edge represents the horizon. Sydney Observatory is part of the Museum of Applied Arts and Sciences. The Sydney Observatory night sky map was created by Dr M. Anderson using the TheSky software. This month’s edition was prepared by Melissa Hulbert. © 2019 Museum of Applied Arts and Sciences, Sydney. .

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The Dunhuang Chinese Sky: a Comprehensive Study of the Oldest Known Star Atlas
25/02/09JAHH/v4 1 THE DUNHUANG CHINESE SKY: A COMPREHENSIVE STUDY OF THE OLDEST KNOWN STAR ATLAS JEAN-MARC BONNET-BIDAUD Commissariat à l’Energie Atomique ,Centre de Saclay, F-91191 Gif-sur-Yvette, France E-mail: [email protected] FRANÇOISE PRADERIE Observatoire de Paris, 61 Avenue de l’Observatoire, F- 75014 Paris, France E-mail: [email protected] and SUSAN WHITFIELD The British Library, 96 Euston Road, London NW1 2DB, UK E-mail: [email protected] Abstract: This paper presents an analysis of the star atlas included in the medieval Chinese manuscript (Or.8210/S.3326), discovered in 1907 by the archaeologist Aurel Stein at the Silk Road town of Dunhuang and now held in the British Library. Although partially studied by a few Chinese scholars, it has never been fully displayed and discussed in the Western world. This set of sky maps (12 hour angle maps in quasi-cylindrical projection and a circumpolar map in azimuthal projection), displaying the full sky visible from the Northern hemisphere, is up to now the oldest complete preserved star atlas from any civilisation. It is also the first known pictorial representation of the quasi-totality of the Chinese constellations. This paper describes the history of the physical object – a roll of thin paper drawn with ink. We analyse the stellar content of each map (1339 stars, 257 asterisms) and the texts associated with the maps. We establish the precision with which the maps are drawn (1.5 to 4° for the brightest stars) and examine the type of projections used.
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Arxiv:2004.14050V1 [Astro-Ph.SR] 29 Apr 2020
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