I am new to Sydney Observatory, as I only started interning in the beginning of January. I hail from Chicago,Illinois right in the middle of Midwest America. Directly west of Chicago is the Mississippi River, on which sits my university, Augustana College (Augie). I’m here studying/working abroad in Sydney, and frankly, I am loving life. Right now, normally I would be in the middle of winter, walking to class through snow in -20° Celsius (-5° Fahrenheit in my terms) weather with biting winds. Needless to say, I much prefer the (somewhat) sunny Australian summer weather this time of year.
Three views of sunspot group AR1146. Image and copyright Harry Roberts ©, all rights reserved AR 11416 first appeared in the sun’s SE quadrant on Feb 8 around 16:00 UT, as a small grey pore with a magnetic field of 1500G; just 24h later it was a cluster of maybe a dozen spots with two compact penumbral spots preceding (p) – an impressive rate of development.
The orbits of Venus and the Earth looking from above. Drawing Nick Lomb Lionel asks: Congratulations on your Venus book. Excellent. I notice that there is a 243 year cycle for Transits of Venus 243 x 365.242 = 224.7 x 395 So far so good.
The ‘Leviathan of Ballarat’, now known as ‘The Baker’, is a 66-cm (26-inch) reflecting telescope completed in 1888. Photo Nick Lomb Recently, on 10 February 2012, I visited the Ballarat Municipal Observatory at Mt Pleasant, Ballarat to give a talk on the transit of Venus.
The prime spectrum (the linear spectrum seen when the broadening optic is removed, giving a brighter spectrum) of Eta Carinae. Top- prime spectrum with emission bands absent (speculative). Below – the usual appearance.
In this photograph from the early 1900s, the stone survey marker in front of Sydney Observatory is surrounded by what appears to be an uncompleted wooden platform. The white thermometer shed is adjacent to the survey marker while the Observatory's meteorological instruments can be seen on the lawn behind it.
A photograph of the Eta Carinae Nebula with the location of two Wolf-Rayet stars and other features marked. Image and copyright Harry Roberts ©, all rights reserved Wolf-Rayet stars are rare - but we have two close to the enigmatic hyper-star Eta Carinae.
A sextant built by the English instrument maker Matthew Berge. Courtesy Powerhouse Museum I have received a letter from Jonathan Milne-Fowler, Lieutenant-Commander RANR (Retired) regarding my book Transit of Venus: 1631 to the present.
6-7:30pm, Tuesday 17 April
Dr Paul Payne presents the amazing history of the telescope in stunning 3D imagery.
Like most museums the Powerhouse collection is larger than we could possibly display. The Powerhouse Discovery Centre (PDC) at Castle Hill contains shelves full of historical 'treasure' - and this includes clocks & telescopes once used at Sydney Observatory.
An Australian Post Office film about the arrival of the first automatic speaking clocks in Sydney and Melbourne in 1954. Thank you to vk3ase for finding and posting this film on YouTube Today everything is small and electronic.
Toner Stevenson, Manager Sydney Observatory, reports from Western Australia. My recent visit to Perth included visiting the Observatory at Bickley.
To help you learn about the southern night sky, Sydney Observatory provides an audio guide/podcast, transcript of that audio, and a sky map or chart each month. This month's guide is presented by Melissa Hulbert, an Astronomy Educator at Sydney Observatory.
HC Russell’s observations at the end of the transit as seen from Sydney Observatory. Photo lithograph from Observations of the Transit of Venus, 9 December, 1874. Powerhouse Museum Research Library In the previous post I considered the preparations of Henry Chamberlain Russell, the director of Sydney Observatory, for the 1874 transit and the magnificent illustrated book that he published on the event.
The dome of the 46-cm (18-inch) telescope at Mt Burnett Observatory. Image and copyright Nick Lomb ©, all rights reserved On Saturday evening 21 January 2012 I found myself at the opening of Mt Burnett Observatory as a public and amateur observatory.