astronomy Newsletter


June 24 2018 Astronomy Newsletter

Hi everybody

Here is the latest article from the Astronomy site at

Delphinis the Dolphin
Delphinus (the Dolphin) sounds like one of the southern sea constellations invented by early European navigators. However it's an ancient northern constellation first catalogued by Ptolemy in the 2nd century. Small and made up of faint stars, its diamond is still easily visible in a clear dark sky.

*Royal Observatory Greenwich*
The observatory was founded on June 22, 1675. You can read more about it here: By international agreement Greenwich was chosen for the zero of longitude – the Prime Meridian – for navigation. However if you are on the Greenwich meridian and check your GPS it doesn't read zero. What's up?

*Birth anniversaries*
(1) June 25, 1894. Hermann Oberth – German physicist and engineer considered one of the founding fathers of rocketry and astronautics.
(2) June 26, 1730. Charles Messier – French astronomer who discovered so many comets that King Louis XV called him a "comet ferret".
(3) June 26, 1914. Lyman Spitzer, Jr. - American astronomer and theoretical physicist for whom the Spitzer Space Telescope is named.
(4) June 28, 1912. Ruby Payne-Scott – Australian radio astronomer, who was a pioneer in radiophysics, and the first female radio astronomer.
(5) June 29, 1868. George Ellery Hale – American solar astronomer and key figure in the construction of three of the world's biggest telescopes.

Please visit for even more great content about Astronomy. I hope to hear from you sometime soon, either in the forum or in response to this email message. I welcome your feedback!

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I wish you clear skies. 

Mona Evans, Astronomy Editor 

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