Year: 2011

Les catches a sundog with an iPhone

February 28, 2011

I captured this image of a parhelion (sundog) on 24th February 2011 with the camera in my iPhone 3GS at Engadine. The Sun is seen shining through the eucalyptus tree at right in the frame (with a red internal reflection within the camera lens beside it).

March 2011 night sky guide and podcast

February 28, 2011

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 audio sky guide is presented by Geoffrey Wyatt, Astronomy Educator at Sydney Observatory.

March 2011 audio monthly sky guide transcript

February 28, 2011

This is a transcript of a podcast of the March 2011 night sky guide presented by Geoffrey Wyatt. Download and listen to the podcast as you gaze up at the night sky. Hello, my name is Geoffrey Wyatt. I’m the Senior Astronomy Educator at Sydney Observatory.

Harry manages to see the faint companion of the bright star Sirius, the white dwarf Sirius B, through a small telescope

February 15, 2011

Sketch of the bright star Sirius and its white dwarf companion Sirius B, as seen in a four-inch (10-cm) Maksutov-type telescope. Image and copyright Harry Roberts ©, all rights reserved Sky-watchers today are having a ‘good run’ – a second transit of Venus is due soon, we’ve seen comets collide with Jupiter (more than once), supernovae have burst forth - and big ‘scopes can now be had for less than a week’s income.

Know your constellations: Hydra the female water snake

February 8, 2011

The main stars of Hydra the female Water Snake with a few neighbours as seen from Australia looking east at about 10 pm AEDT in mid February. Image and copyright Nick Lomb ©, all rights reserved Recently on this blog we wrote about Hydrus the Male Water Snake.

Harry sees fireworks when big sunspot AR11147 appears on the Sun

February 2, 2011

The evolution of sunspots AR11147 and AR11149 over three days in January 2011. Image and copyright Harry Roberts ©, all rights reserved Given the current dearth of big sunspots AR11147 was a welcome sight as it rounded the sun’s east limb, in brief cloud gaps– a large single spot with penumbra.

February 2011 night sky guide and podcast

January 28, 2011

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 audio sky guide is presented by Melissa Hulbert, Astronomy Educator at Sydney Observatory.

February 2011 audio monthly sky guide transcript

January 28, 2011

This is a transcript of a podcast of the February 2011 night sky guide presented by Melissa Hulbert. Download and listen to the podcast as you gaze up at the night sky. Hello and welcome to the night sky for February.

Know your constellations: is Hydrus the Male Water Snake angry?

January 19, 2011

The main stars of Hydrus the Male Water Snake with a few neighbours. Image and copyright Nick Lomb ©, all rights reserved With floods affecting large parts of Queensland, NSW and Victoria, one of the problems faced by returning residents is that of snakes.