astrophotography by bill w

Caught a number of background quasars in the field of Abell 1367. quasars (quasi-stellar radio sources) look like faint blue stars but t...

when distances get very large, astronomers measure the "red shift" of light to determine distances: more distant objects are ...

factoid: Abell 1367 has more galaxies brighter than mag 14 than any other galaxy cluster the term "deep sky objects" is used by ...

a solar prominence is typically a structure seen on the edge of the sun against the black background of space.  it often looks like an ar...

what color are the Ha (hydrogen alpha) images of the sun? hydrogen alpha is red, but viewing thru my solar scope, it looks reddish orange t...

back in may i took a quick look at the sun and saw multiple prominences erupting around the disk.  one of which looked like it was lifting ...

more solar work first a prominence animation.   I've increased the imaging frequency and animation speed to give more fluid motion i...