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The Astronomers' Bulletin Oct - Dec 2021
In this Issue: The Einstein Ring; Presidential Address at AGM; Secretary's report; Solar Observations; Observing Double Stars; SC25. You...
Janette Brennan
Oct 29, 20211 min read
In this month: January
Happy New Year! Elizabeth Cocking continues this astronomical blog post sequence in 2023. Each month she looks back on astronomical...
Elizabeth Cocking
Dec 31, 20203 min read
In this month: December
23rd December 1672 Rhea, the second-largest moon of Saturn and the ninth-largest moon in the Solar System, is discovered by Giovanni...
Elizabeth Cocking
Nov 30, 20202 min read
Guinness World Record Attempt
Sydney City Skywatchers combined with Sydney Observatory and thousands of others at Centennial Park on Wednesday 23rd May 2018, 7:00...
Elizabeth Cocking
May 22, 20181 min read
Did you know? - size and density
Kepler 7B, a newly found giant exoplanet, has the density of a styrofoam cup. Betelgeuse, a star in the Orion Nebula (photo above) which...
Elizabeth Cocking
Feb 1, 20181 min read
Looking forward to an astronomical 2018
What a year 2017 has been with a total solar eclipse viewed by millions across North America, and a partial Lunar Eclipse seen from...
Dr Toner Stevenson
Dec 27, 20172 min read
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