Difference between revisions of "Bjerknes"
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| − | [http://lpod.org/coppermine/displayimage.php?pid=4186&fullsize=1 [[Image: | + | [http://lpod.org/coppermine/displayimage.php?pid=4186&fullsize=1 [[Image:Normal_bjerknes-large.jpg|external image normal_bjerknes-large.jpg]]]<br /> |
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'''Left:''' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117_lo.pdf Lunar Orbiter LAC 117] '''Right:''' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117.pdf Color-coded LAC 117] -- both images from the [http://the-moon.us/wiki/USGS%20Digital%20Atlas USGS Digital Atlas].<div id="toc"> | '''Left:''' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117_lo.pdf Lunar Orbiter LAC 117] '''Right:''' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117.pdf Color-coded LAC 117] -- both images from the [http://the-moon.us/wiki/USGS%20Digital%20Atlas USGS Digital Atlas].<div id="toc"> | ||
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''([http://the-moon.us/wiki/LAC%20zone LAC zone] 117A3)'' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117.pdf USGS Digital Atlas PDF]<br /> <br /> | ''([http://the-moon.us/wiki/LAC%20zone LAC zone] 117A3)'' [http://planetarynames.wr.usgs.gov/images/Lunar/lac_117.pdf USGS Digital Atlas PDF]<br /> <br /> | ||
==Description== | ==Description== | ||
| − | Aged as [http://the-moon.us/wiki/Stratigraphy Late Imbrium] (~ 3.85 to 3.8 bn years), '''Bjerknes''' more than likely formed on ejecta deposits from the [http://the-moon.us/wiki/Mare%20Australe Australe Basin] - a 880 kilometre-wide basin of the [http://the-moon.us/wiki/Stratigraphy pre-Nectarian] period (~ 4.6 to 3.92 bn years) whose outer rim lies just ~ 150 kilimetres away to its south-west. The crater has a somewhat sharp-ish rim for its age, but on closer examination signatures of inner wall-collapse, terracing and an infilled centre suggest '''Bjerknes''' has been through the time-mill. Only one or two small craters dot its centre and south-western rim. <span class="membersnap">- | + | Aged as [http://the-moon.us/wiki/Stratigraphy Late Imbrium] (~ 3.85 to 3.8 bn years), '''Bjerknes''' more than likely formed on ejecta deposits from the [http://the-moon.us/wiki/Mare%20Australe Australe Basin] - a 880 kilometre-wide basin of the [http://the-moon.us/wiki/Stratigraphy pre-Nectarian] period (~ 4.6 to 3.92 bn years) whose outer rim lies just ~ 150 kilimetres away to its south-west. The crater has a somewhat sharp-ish rim for its age, but on closer examination signatures of inner wall-collapse, terracing and an infilled centre suggest '''Bjerknes''' has been through the time-mill. Only one or two small craters dot its centre and south-western rim. <span class="membersnap">- JohnMoore2</span><br /> <br /> |
==Description: Wikipedia== | ==Description: Wikipedia== | ||
[http://en.wikipedia.org/wiki/Bjerknes_(crater) Bjerknes]<br /> <br /> | [http://en.wikipedia.org/wiki/Bjerknes_(crater) Bjerknes]<br /> <br /> | ||
Latest revision as of 20:02, 16 April 2018
Contents
Bjerknes
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Lat: 38.4°S, Long: 113.0°E, Diam: 48 km, Depth: km, Rükl: (farside), Upper Imbrian | |
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Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Bjerknes was captured near the upper right corner of Apollo 17's Fairchild-camera photograph AS17-M-3183, which was made during Trans Earth Coast (TEC).
Research: Danny Caes
Maps
(LAC zone 117A3) USGS Digital Atlas PDF
Description
Aged as Late Imbrium (~ 3.85 to 3.8 bn years), Bjerknes more than likely formed on ejecta deposits from the Australe Basin - a 880 kilometre-wide basin of the pre-Nectarian period (~ 4.6 to 3.92 bn years) whose outer rim lies just ~ 150 kilimetres away to its south-west. The crater has a somewhat sharp-ish rim for its age, but on closer examination signatures of inner wall-collapse, terracing and an infilled centre suggest Bjerknes has been through the time-mill. Only one or two small craters dot its centre and south-western rim. - JohnMoore2
Description: Wikipedia
Additional Information
- TSI = 25, CPI = 15, FI = 10; MI =50 Smith and Hartnell, 1973
Nomenclature
Vilhelm Friman Koren; Norwegian physicist (1862-1951).
LPOD Articles
Bibliography
