New Horizons: Approach Phase, OpsNav - 25 January 15 to 28 June 15 |
New Horizons: Approach Phase, OpsNav - 25 January 15 to 28 June 15 |
Feb 3 2015, 06:45 PM
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Member Group: Members Posts: 105 Joined: 27-August 05 Member No.: 479 |
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Feb 4 2015, 09:22 PM
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
The LORRI image release for today is up at :
http://pluto.jhuapl.edu/News-Center/News-A...p?page=20150204 |
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May 14 2015, 04:12 PM
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Newbie Group: Members Posts: 18 Joined: 4-January 07 Member No.: 1558 |
I've been straining my brain over tanjent's idea. In rough numbers, Pluto is moving at about 5km/s towards the point where closest approach will occur. NH is moving towards the same point at about 14km/s. Imagining the third side of the triangle as the line joining NH to Pluto, the three sides will shrink in proportion to each other so that the direction of the line joining NH to Pluto stays approximately constant. I say approximately because the paths are curved, they aren't really aiming at exactly the same point etc. Imagining myself riding along with NH, I'm not surprised that Gerald finds a very small drift for the barycentre - the apparent motion of Pluto relative to the background stars as seen from NH would be much less than that seen from the Sun.
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