Posted on Tuesday, April 07, 2015
By Kadri Tinn |
The Lyrid meteor shower will be active this year from April 16th to April 25 th with the best time for observations is on around April 23rd.

The beginning of the active time for this meteor shower happens to be when the Moon is just a thin crescent and sets early, and during the culmination of the meteor shower it sets a more than an hour after midnight - so it's a great time for seeing some meteors weather permitting.

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Posted on Tuesday, April 07, 2015
By Kadri Tinn |

Electricity and Magnetism: New Formulation by Introduction of Superconductivity by Teruo Matsushita

Electricity and Magnetism is a crucial part of any undergraduate physics course at colleges and universities and one that often times separates the students into who will graduate and who will not.

Electricity and magnetism is fascinating if you spend enough time actually learning it - just a lecture course normally wouldn't be enough, and you have to work hard with a textbook. Although there are probably few lecture courses that teach electricity and magnetism with this formulation, students would benefit from looking at the subject from a different angle, where you get a better understanding of the interplay between electric and magnetic fields.

The textbook is quite interesting right from the beginning, various exercises and worked examples help set in the topics covered and if needed you can consult the appendix for some of the mathematics you might need if you get stuck with something you've forgotten.

If you've previously gone through an electricity and magnetism textbook that uses the more classical formulation, then this one will either seem like too much or like a fresh new breeze and very exciting.
Posted on Tuesday, April 07, 2015
By Kadri Tinn |
Did you miss the total lunar eclipse on the weekend? Here's a chance to see it in video:


Posted on Thursday, March 26, 2015
By Kadri Tinn |

Myths, Symbols and Legends of Solar System Bodies by Rachel Alexander

There are several books out there that deal with the mythological background of the names for celestial objects starting with all the books on various constellation myths and ending pretty much with books like this - that explains the legendary heroes in Greco-Roman mythology after whom objects in the Solar System have been named.

In addition to the ancient Greek myths, this book has  quite a bit more to offer, as it also dips into Celtic and Scandinavian mythology, as there are objects that aren't named after characters you might find in a work by Homer, some other interesting stories from all across the world can be found as well.

The book is interesting in its extent and the way it looks at the symbols - for example the representation of the Sun in different cultures, but also in the extent it goes to in looking at the names given to surface features on various planets and on the Moon - if you've ever wondered after whom or what craters or volcanoes are named on Venus or Mars, this book gives a good overview.


Posted on Sunday, March 15, 2015
By Kadri Tinn |

Sun in H-Alpha on March 14th, 2015


Posted on Wednesday, March 11, 2015
By Kadri Tinn |
Have you already made your observation plans for the solar eclipse on March 20th?
Here's a map of where you can see it.
Eclipse predictions by Fred Espenak, NASA's GSFC
In my location there are several observation events that will be taking place to observe the partial eclipse, where the Moon will cover up to 73% of the solar disks surface area. Hopefull all will go well, and the weather will cooperate. The solar eclipse will start at 9 GMT (11 EST) and finishes by 11.
If you take any images of the eclipsed sun, share them with us!

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Posted on Friday, March 06, 2015
By Kadri Tinn |
NASA's Dawn mission will be arriving at Ceres today, March 6 th, 2015

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