User contributions for 66.135.173.139

29 November 2010

• 03:3303:33, 29 November 2010 diff hist +69‎ Barycentric Coordinate Time ‎ Added "See also" section

3 February 2010

• 00:2700:27, 3 February 2010 diff hist −52‎ Vis-viva equation ‎ The vis-viva equation gives the relative velocity, it is a function of the sum of the masses.

24 December 2009

• 01:5201:52, 24 December 2009 diff hist +2,438‎ Orbital mechanics ‎ Added solution of Kepler's Equation

17 December 2009

• 05:2805:28, 17 December 2009 diff hist +805‎ Free fall ‎ Added exact formulas for altitude Vs time

6 December 2009

• 04:4504:45, 6 December 2009 diff hist +245‎ Orbital eccentricity ‎ Added radial orbits

29 October 2009

• 02:4002:40, 29 October 2009 diff hist +419‎ User talk:JRSpriggs ‎ →‎Undid formula change for Levi-Civita Symbol (retained index notation changes).: new section
• 02:1702:17, 29 October 2009 diff hist 0‎ Levi-Civita symbol ‎ Undo recent changes to formula, original version was correct Kept notation corrections, however.

18 July 2009

• 00:2800:28, 18 July 2009 diff hist +241‎ Talk:Doppler effect ‎ Don't forget propagation delays
• 00:0200:02, 18 July 2009 diff hist +182‎ Talk:Doppler effect ‎No edit summary

24 February 2009

• 07:2307:23, 24 February 2009 diff hist +674‎ Reduced-gravity aircraft ‎ Parabola Vs Ellipse, The shape of a trajectory cannot be described without specifing a frame of reference.

13 February 2009

• 06:5006:50, 13 February 2009 diff hist +2,453‎ Talk:Aberration (astronomy) ‎ →‎A star on an ecliptic pole traces an ellipse, not a circle: new section

18 December 2008

• 01:0701:07, 18 December 2008 diff hist −4‎ Galactic tide ‎ The shape of the minimal energy surface is an ovoid, not an ellipsoid.

4 November 2008

• 14:0014:00, 4 November 2008 diff hist −2‎ Digamma function ‎ Corrected Gauss's Digamma Theorem, The summation ranges from 1 to ceil((k-1)/2), not from 1 to floor((k-1)/2)