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Sydney Observatory night sky map September 2012 A map for each month of the year, to help you learn about the night sky www.sydneyobservatory.com This star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Brisbane, Canberra, Hobart, Adelaide and Perth for September 2012 at about 7:30 pm (local standard time). For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while extra stars will be visible to the north. Stars down to a brightness or magnitude limit of 4.5 are shown. To use this chart, rotate it so that the direction you are facing (north, south, east or west) is shown at the bottom. The centre of the chart represents the point directly above your head, called the zenith, and the outer circular edge represents the horizon. North Star brightness Last quarter: New Moon: First quarter: Full Moon: LACERTA Deneb CYGNUS NE LYRA Vega 08th 16th 23rd 30th NW Zero or brighter 1st magnitude 2nd 3rd 4th Moon phase LYRA CORONA BOREALIS HERCULES BOOTES VULPECULA SAGITTA PEGASUS DELPHINUS Arcturus Altair EQUULEUS SERPENS AQUILA OPHIUCHUS SCUTUM PISCES Moon on 23rd SERPENS CAPRICORNUS East SAGITTARIUS LIBRA Centre of the Galaxy Antares SAGITTARIUS MICROSCOPIUM PISCES AUSTRINUS PISCIS AUSTRINUS CORONA AUSTRALIS Fomalhaut P Saturn P Mars SCORPIUS VIRGO Spica Centre of the Galaxy TELESCOPIUM LUPUS ARA NORMA GRUS GRUS INDUS INDUS CETUS Zubenelgenubi Antares SCORPIUS West Zubeneschamali AQUARIUS CORVUS PAVO SCULPTOR CIRCINUS CENTAURUS Alpha Alpha Centauri Centauri CENTAURUS Hadar Beta Centauri TRIANGULUM AUSTRALE PHOENIX TUCANA SMC Achernar POINTERS APUS Beta Crucis APUS OCTANS Mimosa Coalsack MUSCA South Celestial Pole MUSCA South Celestial Pole CHAMAELEON Jewel Box SOUTHERN CROSS CRUX CRUX HYDRUS Chart key MENSA SE FORNAX Bright star HOROLOGIUM LMC RETICULUM VOLANS Faint star DORADO Ecliptic Milky Way P Planet LMC or Large Magellanic Cloud South PICTOR SMC or Small Magellanic Cloud C SW CARINA VELA ANTLIA The spring equinox occurs on the 23rd when the length of day and night is almost equal, about 12 hours each. Saturn is visible low in the west in the constellation of Virgo. Mars is next to the star Zubenelgenubi in Libra. The best time to see the Moon using binoculars or a small telescope is a few days either side of the first quarter Moon on the 23rd. To the south-west is Crux (the Southern Cross) easily located using the two nearby stars called the Pointers. In the centre of the sky are the constellations of Scorpius (the Scorpion) and Sagittarius (the Archer). Sydney Observatory, with a magnificent view overlooking Sydney Harbour, is open 10am to 5pm daily – except closed Good Friday, Christmas Day and Boxing Day, and open 10am to noon on New Year’s Eve. Open Monday to Saturday for night sessions (times vary depending on the season) for sky viewing through one of our telescopes (cosy planetarium session if cloudy), and 3D movies about the Universe. Bookings are essential for night programs. For more information, check the website at www.sydneyobservatory.com or call (02) 9921 3485. Sydney Observatory is at Watson Road, Observatory Hill, in the historic Rocks area of Sydney. Sydney Observatory is part of the Powerhouse Museum. The Sydney Observatory night sky map is prepared by Dr M Anderson using the software TheSky. © 2012 Museum of Applied Arts and Sciences, Sydney.