This is another confession. Continue reading “Quadrantids and Edot revisited”
Here is a space-picture of how the meteors of this stream cross Earth’s orbit.
In the night of Tuesday-to-Wednesday (November 17-18) our planet will meet the Leonid meteors, head-on.
That is to say, Continue reading “Relative Speed”
The Perseids are rising toward one of the best of their annual displays.