|About the Perth Observatory
Western Australia's oldest observatory is located 25km east of Perth in Bickley. The Observatory has served the state of WA for over 100 years and remains actively involved in the service of public education. In recognition of its scientific, cultural and historical significance, the Observatory was entered on the state's Heritage Register in 2005. The Perth Observatory is part of the Department of Parks and Wildlife.
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|Night Sky Report: 22 July 2014
Been watching Mars in the evenings? It’s very high up in the north at dusk, near to the star Spica (Alpha Virginis) which is the brightest star in Virgo. If you look at Mars and Spica with binoculars – don’t get a crick in your neck – you’ll see that Mars has an orange colour while Spica has a blue tinge. Among stars, blue means hot. The surface temperature of Spica is about 22,000°C compared with our Sun’s moderate 5,500°C. In coming days and weeks you’ll find that the position of Mars relative to Spica will change noticeably. Spica's the reference point; Mars is the wanderer. The word planet comes from the Greek for wanderer. Mars is quite near and you can see its movement, even in a couple of days. Spica might as well be at infinity. The waning crescent moon is the dominant object in the morning skies now. New moon, signaling the end of Ramadan, occurs next Sunday July 27th. Venus is still visible low in the NE at dawn. On Friday morning the crescent moon will be near to Venus.
Follow our blog at: http://www.perthobservatory.wa.gov.au/nightskyblog.htm
| ONLINE TOURS CALENDAR
Find out what you might see on a night tour with our online tours calendar for 2013-14. Includes starting times for tours as well. A great tool to help you plan your visit.
| ASTRONOMICAL EVENTS
Significant astronomical events are included in our online astronomical events calendar. A handy reference tool to help you understand the night sky.
| SOLAR, LUNAR & TWILIGHT
Rise and set times for the Sun, Moon and twilight for Western Australia until the year 2026 can be found in our:
online solar, lunar and twilight calendar.
337 Walnut Rd, BICKLEY WA 6076
Tel: (08) 9293 8255
Fax: (08) 9293 8138
Online museum coming soon.
We have been busy creating an online version of the Perth Observatory Museum. It's an integral part of our tour program and we're making it more accessible - watch this space!
The Perth Observatory cannot provide the following information for use in statutory declarations for evidence in a court of law: natural lighting, rise/set phenomena, lunar phases and illumination.