Reverend Bob Evans with his telescope at Linden Observatory - picture Nick Lomb Last weekend Nick together with a Sydney Observatory colleague and with the president of Sydney City Skywatchers had a rare opportunity to get away from Sydney's bright sky at Linden Observatory in the Blue Mountains.
Supernova 2005df in NGC 1559, discovered by Bob Evans. Photo Credit: ESO If you want to observe a supernova with a telescope, you have to be keen, or lucky! The best way is to keep an eye out here for a new discovery that is visible with your sized telescope.
Mira (Omicron Ceti). Photo Credit: Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) and NASAAdam Block/NOAO/AURA/NSF An important anniversary in the history of science is passing almost unnoticed.
The light curve of Z CMa from the AAVSO international data base, including the observations of the VSS RASNZ, and the ASAS. The latter is in green. In the constellation of Canis Major, close in the sky to Sirius but far beyond, a so called ‘young stellar object’ (YSO) is brightening.
Some of these data points could be your contribution to science. The AAVSO light curve of the star R Carinae, observable from light polluted skies with binoculars. This year marks the founding of Variable Stars South (VSS); an organization dedicated to instigating observing and research projects for the benefit of the world wide astronomical community.
An artists' conception of a dwarf nova system. Matter is transferred from the secondary - a main sequence dwarf star - to the white dwarf primary, forming an accretion disk. Image credit: A. Beardmore, University of Leicester, UK, courtesy AAVSO I am continually surprised at the contributions that an amateur astronomer can make with a cheap telescope, publicly available archived data, and curiosity.
A recent prominence on the Sun photographed by Monty Leventhal. Monty comments: "this is a typical type of prominence during solar minimum. This one reached a height of 61,000 km and was faint as usual with this type."
Edge on spiral galaxy NGC4565, image Gerry Aarts Gerry Aarts, the president of Western Sydney Amateur Astronomy Group, WSAAG, reports: Imaged this beautiful edge on spiral galaxy after Bob Evans (Supernova Hunter) showed it to me through the big 30 inch Dobsonian Telescope at the Linden Observatory.
The Parkes Radio Telescope. Astronomy can be done in many ways: Gamma rays, X-rays, ultraviolet, visual light, infra-red and radio waves all carry information about the universe. Photograph by John Sarkissian, ATNF.
The Sculptor Galaxy from Linden Observatory, image by Gerry Aarts Recently Gerry Aarts, the president of the Western Sydney Amateur Astronomy Group (WSAAG), acquired a new lens for his Celestron GPS11 telescope.
Helix Nebula, image by Gerry Aarts at Linden Observatory on 16 September 2007 The colourful Helix Nebula is the closest example in the sky of a planetary nebula. These are somewhat misleadingly named as they have little to do with planets.
The Horsehead Nebula in Orion, image by Gerry Aarts, WSAAG, Linden Observatory 14 October 2007 Recently Gerry Aarts, the president of the Western Sydney Amateur Astronomy Group (WSAAG), acquired a new lens for his Celestron GPS11 telescope.
The brightest star in the constellation of Piscis Australis (the Southern Fish), Fomalhaut can be easily found with the Australian Sky Guide. Fomalhaut image from the Aladin Sky Atlas Several nearby stars have been found to have disks of stuff around them: Fomalhaut, Vega, Beta Pictoris, and AU Microscopii among them.
NGC 5530. The star on the center of the galaxy is a foreground star; the indicated star is the far-distant supernova. Image courtesy of Gerry Aarts of the Western Sydney Amateur Astronomical Group During the evening of Thursday the 13th of September Bob Evans of Hazelbrook in the Blue Mountains discovered his 41st supernova.
Lepus the Rabbit, drawn by Alan Plummer The 2nd century Roman author Hyginus told a story that could have changed Australian history. According to his book Poetic Astronomy: “At one time there were no hares on the island of Leros, until one man bought in a pregnant female.