Lionel:
Where are you from? <a href=" http://www.flyeauclaire.com/intagra-pill ">online intagra</a> The main star in HD 189733 also has a faint red companion, detected for the first time in X-rays with Chandra. The stars likely formed at the same time, but the main star appears to be 3 billion to 3 1/2 billion years younger than its companion star because it rotates faster, displays higher levels of magnetic activity and is about 30 times brighter in X-rays than its companion.
    Lionel写于2015/5/10 19:27:46