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Posts by
Guy Ottewell
Oumuamua’s path in our solar system
You’ve probably read about this unprecedented visitor from interstellar space. Astronomer Guy Ottewell thought you’d like to see its trajectory through our solar system.
December 27, 2017
Sun on the sky’s equator
Another great explanation of Friday's equinox - plus beautiful graphics - from astronomer Guy Ottewell.
September 22, 2017
Moon on its way to the eclipse
Insights and a cool chart from astronomer Guy Ottewell. Plus, if you click in, you'll find photos of waning crescent moons from the past few mornings ...
August 17, 2017
A shadow-band project for August 21
Shadow bands are elusive ripples of alternate light and dark, flitting over the ground or the sides of buildings during a total solar eclipse. How to take part in an International Shadow Band Campaign during the August 21 eclipse.
July 20, 2017
The eclipse is just 2 lunations away
As we approach another new moon, astronomer Guy Ottewell shares his profound understanding of lunar cycles and the coming total solar eclipse.
June 23, 2017
Planet circus in May, with explanation
A beautiful spatial view of our solar system from Guy Ottewell, showing the planets’ paths along their orbits in approximately mid-May, 2017, with sightlines to them from the Earth.
May 15, 2017
Catch Comet Encke this evening!
The comet's orbital period is short - only 3.3 years - and the orbit is relatively close to Earth. Encke's Comet is now on its 63rd known visit to our part of space.
February 27, 2017
Vesta, brightest asteroid, brightest for 2017
If you've never spotted an asteroid, now would be a good time to try. Vesta's 2017 opposition is around now. Guy Ottewell provides charts and explains more.
January 16, 2017
