Starship Asterisk*

Thanks for the responses! Sorry for the dumb question... I did a little more research on Wikipedia and learned (actually I was reminded) that star color is indicative of the temperature. I had forgotten this and was simply enamored by the image of blue, yellow, and red stars in the foreground and wa...

Does the July 12 image represent blue shift and red shift star motion? If not how is this detected and are there any images in the archives? Thank you, Ed... ref... http://apod.nasa.gov/apod/ap070712.html