astronomy Newsletter


June 4 2015 Astronomy Newsletter

Hi everybody

Here's the latest article from the Astronomy site at

ABC of Astronomy – C Is for Cosmic Rays
Hundreds of cosmic rays zip through your body every minute. They're a danger to astronauts, and may damage the electronics of satellites and spacecraft. Some aren't cosmic, none are rays, and a few seem to be impossible. What are they and where do they come from?

*Einstein's eclipse *
When "Einstein's eclipse" occurred on May 29, 1919, the background stars were in a particular position. Francisco Diego at University College London worked out when the Sun and background stars would be in the same positions and got the image from the SOHO website. SOHO is an orbiting solar observatory. Here are the images he caught:
(1) a digital image of the photograph plate exposed by Eddington during the eclipse:
(2) a SOHO image from the morning of May 30, 2015:

*Bright spots on Ceres*
NASA is asking for guesses about what's creating those bright spots on Ceres. Certainly until Dawn gets a closer look over the next few months, it's anyone's guess what those spots could be. What do you think they are? Cast your vote here.

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I wish you clear skies.

Mona Evans, Astronomy Editor

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