Proper Motion
When discovered, it had the highest proper motion of any star known, replacing 61 Cygni in that department. Later it dropped to second place after the discovery of Kapteyn's Star, and still later to third place after the discovery of Barnard's Star. It is considerably farther away than either of those stars, however, which means its transverse velocity is greater.
Actually, it is the Sun which is following the motion of galaxy rotation by revolving around the center of the Milky Way; halo stars like Groombridge 1830 do not follow this galaxy rotation and thus are "standing still" and appear to be moving in "retrograde direction" at high speed.
Read more about this topic: Groombridge 1830
Famous quotes containing the words proper and/or motion:
“As an individual, I myself feel impelled to fancy ... a limitless succession of Universes.... Each exists, apart and independently, in the bosom of its proper and particular God.”
—Edgar Allan Poe (1809–1849)
“Thence, flow! conceit and motion to rehearse
Pastoral terrors of youth still in the man,
Torsions of sleep, in emblematic verse
Rattling like dice unless the verse shall scan
All chance away....”
—Allen Tate (1899–1979)