Editing Lagrange point (section)

=== {{L1|nolink=yes}} point===
The {{L1|nolink=yes}} point lies on the line defined between the two large masses ''M''<sub>1</sub> and ''M''<sub>2</sub>. It is the point where the gravitational attraction of ''M''<sub>2</sub> and that of ''M''<sub>1</sub> combine to produce an equilibrium. An object that [[orbit]]s the [[Sun]] more closely than [[Earth]] would typically have a shorter orbital period than Earth, but that ignores the effect of Earth's gravitational pull. If the object is directly between Earth and the Sun, then [[Gravity of Earth|Earth's gravity]] counteracts some of the Sun's pull on the object, increasing the object's orbital period. The closer to Earth the object is, the greater this effect is. At the {{L1|nolink=yes}} point, the object's orbital period becomes exactly equal to Earth's orbital period. {{L1|nolink=yes}} is about 1.5&nbsp;million kilometers, or 0.01 [[Astronomical unit|au]], from Earth in the direction of the Sun.<ref name="Lagrange Cornish">{{cite web|last1=Cornish|first1=Neil J. |date=1998 |title=The Lagrange Points |publisher=WMAP Education and Outreach |url=http://www.physics.montana.edu/faculty/cornish/lagrange.pdf| archive-url     =https://web.archive.org/web/20150907090116/http://www.physics.montana.edu/faculty/cornish/lagrange.pdf|archive-date=7 September 2015|url-status=dead|access-date=15 December 2015}}</ref>