New Names for Mercury features |
New Names for Mercury features |
Apr 10 2008, 05:39 PM
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
This is just the first of what will presumably be many new sets of names for features on Mercury produced by MESSENGER's imaging:
QUOTE Twelve New Names and a New Theme for Fossae Approved for Use on Mercury The following new names have been approved by the IAU for use on Mercury. Craters: Apollodorus, Atget, Cunningham, Eminescu, Kertész, Neruda, Raditladi, Sander, Sveinsdóttir, Xiao Zhao Rupes: Beagle Rupes Fossae: Pantheon Fossae The newly approved theme for fossae on Mercury is "Significant works of architecture." Beagle Rupes is the big curvy rupes near the western terminator on the outbound images. Pantheon Fossae is the "spider." Apollodorus is the crater that sits on the spider. Anyone care to try your hand at mapping out the locations of the other craters? They all seem to be on the outbound images, no surprise there. Name Lat Lon Diameter Raditladi 27.28 240.93 257 Xiao Zhao 10.64 236.21 23 Atget 25.65 193.93 100 Sander 42.59 205.6 50 Apollodorus 30.58 197.01 41 Sveinsdóttir -2.58 259.96 220 Eminescu 10.79 245.87 125 Cunningham 30.48 203.07 37 Kertész 27.44 214.06 33 Neruda -52.47 234.55 110 --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Apr 21 2008, 09:41 PM
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Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
I was wondering when somebody would mention those "secondary crater chains". I would like to see the textbook that depicts them. I find it hard to imagine that a series of ejecta blocks from the large crater would land one-after-another along those nearly-perfectly linear tracks, without at least an occasional block landing to one side or the other of the line. That's what I always see in the textbook chains on the Moon or elsewhere, but not here around "Eminescu".
These particular chains are impossibly continuous and co-linear to be formed by flying ejecta blocks. They are primarily radial to Eminescu but not always. I am prepared to wager that they comprise series of sinkholes formed above linear fractures in an underlying basement rock. The fractures would have formed as a result of the Eminescu impact, but the sinkholes would represent a later modification, as deposited regolith sifted down into the cracks. I don't think I have ever seen this kind of pattern on the Moon or other planets, and wonder if it is unique here. It implies a pretty remarkable substructure to the Mercurean crust. I can't believe no one else has commented on this. Emily? -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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Lo-Fi Version | Time is now: 1st May 2024 - 04:25 AM |
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