Difference between revisions of "November 20, 2006"

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=A Southeast Backwater=
 
=A Southeast Backwater=
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<p>image by[mailto:ocanales@able.es  Oscar Canales Moreno], Pinsoro, Spain</p>
 
<p>image by[mailto:ocanales@able.es  Oscar Canales Moreno], Pinsoro, Spain</p>
 
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Only one crater here is well enough known to be recognizable - Piccolomini, the Tycho-like crater striding the southeast end of the Altai Scarp. Piccolomini is a relatively fresh crater but lacks rays and secondary craters so is old enough to have had its smallest features erased by meteoritic bombardment. The three largest relatively fresh craters south and west of Piccolomini - Stibborius, Rothmann and Lindenau - are all 40-50 km diameter look-alikes with small central peaks and slumped walls. The rest of this scene is relatively non-descript older craters on top of each other. Some are probably secondaries from the formation of the Nectaris Basin and others are just random older impacts. A line of smaller secondaries south of Piccolomini appear to come from Stibborius, making it perhaps the youngest large crater in this area. In fact, this southeast quardrant of the Moon has few large to medium size young craters - rays are [http://www.lpi.usra.edu/resources/cla/info/y842/ rare], except for the [http://www.lpod.org/?m=20061008 headlights] near Stevinus.
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Only one crater here is well enough known to be recognizable - Piccolomini, the Tycho-like crater striding the southeast end of the Altai Scarp. Piccolomini is a relatively fresh crater but lacks rays and secondary craters so is old enough to have had its smallest features erased by meteoritic bombardment. The three largest relatively fresh craters south and west of Piccolomini - Stibborius, Rothmann and Lindenau - are all 40-50 km diameter look-alikes with small central peaks and slumped walls. The rest of this scene is relatively non-descript older craters on top of each other. Some are probably secondaries from the formation of the Nectaris Basin and others are just random older impacts. A line of smaller secondaries south of Piccolomini appear to come from Stibborius, making it perhaps the youngest large crater in this area. In fact, this southeast quardrant of the Moon has few large to medium size young craters - rays are [http://www.lpi.usra.edu/resources/cla/info/y842/ rare], except for the [[October_8,_2006|headlights]] near Stevinus.
 
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<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
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Rükl plates 67 &#038; 58<br />
 
Rükl plates 67 &#038; 58<br />
 
[http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_076_h3.jpg Lunar Orbiter IV view]</p>
 
[http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_076_h3.jpg Lunar Orbiter IV view]</p>
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<p><b>Yesterday's LPOD:</b> [[November 19, 2006|Where's Clavius?]] </p>
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<i>Now you can support LPOD when you buy ANY book from Amazon thru [http://www.lpod.org/?page_id=102  LPOD!]</i></p>
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<p><b>Tomorrow's LPOD:</b> [[November 21, 2006|A Basin to Study]] </p>
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===COMMENTS?===
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Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 

Latest revision as of 16:57, 22 March 2015

A Southeast Backwater

LPOD_Piccolomini_Canales.jpg

image byOscar Canales Moreno, Pinsoro, Spain

Only one crater here is well enough known to be recognizable - Piccolomini, the Tycho-like crater striding the southeast end of the Altai Scarp. Piccolomini is a relatively fresh crater but lacks rays and secondary craters so is old enough to have had its smallest features erased by meteoritic bombardment. The three largest relatively fresh craters south and west of Piccolomini - Stibborius, Rothmann and Lindenau - are all 40-50 km diameter look-alikes with small central peaks and slumped walls. The rest of this scene is relatively non-descript older craters on top of each other. Some are probably secondaries from the formation of the Nectaris Basin and others are just random older impacts. A line of smaller secondaries south of Piccolomini appear to come from Stibborius, making it perhaps the youngest large crater in this area. In fact, this southeast quardrant of the Moon has few large to medium size young craters - rays are rare, except for the headlights near Stevinus.

Chuck Wood

Technical Details:
Nov 9, 2006. Skywatcher Newtonian 250mm + Mintron 12v6-EX; VirtualDub for deinterlace and video capture + Registax 4 + Photoshop.

Related Links:
Rükl plates 67 & 58
Lunar Orbiter IV view

Yesterday's LPOD: Where's Clavius?

Tomorrow's LPOD: A Basin to Study

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