IPB

Welcome Guest ( Log In | Register )

First Neptunian L5 Trojan Found
nprev
post Aug 13 2010, 07:55 AM
Post #1


Senior Member
****

Group: Moderator
Posts: 7141
Joined: 8-December 05
From: Los Angeles
Member No.: 602



2008 LC18.

http://www.dtm.ciw.edu/users/sheppard/L5trojan/2008LC18.html . From Subaru; note the extremely crowded starfield. Certainly illustrates the difficulties faced by NH's KBO target search in the same general line-of-sight region at this time.

It's a trailer, est. 60 km 'diameter', orbit apparently a bit inclined. Early reports indicate that NH won't get close enough to get a good look at it when it passes through this Lagrange point in a few years, but the search continues for others.


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
tanjent
post Aug 14 2010, 09:04 AM
Post #2


Member
***

Group: Members
Posts: 133
Joined: 30-December 05
Member No.: 628



The notion that there could be enough of these Lutetia-sized objects in the Neptunian LaGrange points to equal the combined mass of the main asteroid belt really sounds surprising, until you bring in the notion of outward migration. Observations up to this point seem to indicate that Saturn and Uranus have fewer LaGrangian companions than Jupiter and Neptune. If I am reading correctly between the lines of Emily's account, I guess Neptune had the first opportunity to sweep up the rubble as the big planets migrated outward. Jupiter, being so massive, probably had some advantage capturing the rest.
Go to the top of the page
 
+Quote Post

Posts in this topic


Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 21st November 2014 - 05:36 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.