L
Leovinus
Guest
Today's SPACE Page A Day calendar has an image of NGC 7635 (The Bubble Nebula) which is simlar to what I'm posting here. The caption reads: <br /><br /><i>Having the mass of 40 Suns, the central star within NGC 7635 -- the Bubble Nebula -- is powering a stellar wind of particles moving at 4 million mph (7 million kph). This wind is blowing a "bubble" within the surrounding cloud of gas and dust. The bubble's surface forms at the boundary where the wind is slowed down as it blasts into denser cloud material. NGC 7635 is 7,100 light-years away in the constellation Cassiopea.</i><br /><br />To me, 4 million mph is insanely fast. I was wondering if the particles travelling at that speed have any noticible relativistic effects or is that still too slow for that? <div class="Discussion_UserSignature"> </div>