R
R1
Guest
Is it possible that Andromeda and The milky way are in some oblong binary orbit.<br /><br />the most recent redshift for Andromeda is around -300, but wouldn't that strictly mean that the<br />spacetime between us is contracting and still be possible that we're in some kind of fast oblong<br />binary orbit since redshift doesn't tell us anything precise about 3D movement except for recession vs. approaching?<br /><br />I thought about parallax but wouldn't we need to look at it from 2 somewhat separated parts in the Milky way to get accurate (if we use parallax)?<br /> <div class="Discussion_UserSignature"> </div>