Linné (crater): Difference between revisions

| image = [[File:Linné crater moon.jpg|300px]]

| diameter = 2.4 km (1.5 miles)

| depth = 0.6 km (0.3 miles)

| eponym = [[Carl Linnaeus|Carl von Linné]]

'''Linné''' is a small [[Lunar craters|lunar]] [[impact crater]] located in the western [[Mare Serenitatis]]. It was named after Swedish botanist [[Carl Linnaeus]].<ref>{{gpn|3413}}</ref> The [[Lunar mare|mare]] around this feature is virtually devoid of other features of interest. The nearest named crater is [[Banting (crater)|Banting]] to the east-southeast.

The estimated age of this [[Copernican period|copernican]] crater is only a few tens of millions of years. It was earlier believed to have a bowl shape, but data <ref>[http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2063.pdf "Linne: Simple Lunar Mare crater geometry from LRO observations", ''42nd Lunar and Planetary Science Conference (2011)'']</ref> from the [[Lunar Reconnaissance Orbiter|LRO]] showed that it has a shape of a flattened, inverted cone. The crater is surrounded by a blanket of ejecta formed during the original impact. This ejecta has a relatively high [[albedo]], making the feature appear bright.

[[File:NASA's Planetary CSI - Crater Science Investigations.ogv|thumb|300px|Learn what [[Lunar Reconnaissance Orbiter|LRO]] has learned about Linne Crater in this video.]][[Image:Linne crater 4098 h1.jpg|thumb|right|240px|[[Lunar Orbiter 4]] image]]

In 1824 Wilhelm Lohrmann (1786-1840) of Dresden had drawn Linné as an 8&nbsp;km diameter crater in his acclaimed lunar atlas, and in 1837 [[Wilhelm Beer]] and [[Johann Heinrich Mädler]] had described Linne in ''Der Mond'' as a 10&nbsp;km crater.<ref>David Leverington, Babylon to Voyager and Beyond: A History of Planetary Astronomy, Cambridge University Press, 2003</ref> In 1866, the experienced lunar observer and mapmaker [[Johann Friedrich Julius Schmidt]] made the surprising claim that Linné had changed its appearance. Instead of a normal, somewhat deep crater it had become a mere white patch. A controversy arose that continued for many decades. However, this crater size tests the limit of visual perception of Earth-based telescopes. In conditions of poor seeingvisibility this feature can appear to vanish from sight <ref>[http://www.astrosurf.com/lunascan/Linncont.htm "The Linne' crater {{sic|nolink=y|controversey}}", ''The Lunascan Project'']</ref> (see also [[transient lunar phenomenon]]).

[[File:Linné crater color coded shaded relief map detail.png|thumb|right|200px|Color coded shaded relief map of Linné crater]]

==Notes References ==

==References Bibliography ==

| publisher = [[Cambridge University Press]]

| publisher = [[Jonathan's Space Report]]

| accessdateaccess-date = 2007-10-24

* {{cite journal| last1 = Menzel| first1 = D. H.| last2 = Minnaert| first2 = M.| last3 = Levin| first3 = B.| last4 = Dollfus| first4 = A.| last5 = Bell| first5 = B.| title = Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU| doi = 10.1007/BF00171763| journal = Space Science Reviews| volume = 12| issue = 2| pages = 136–186| date = 1971| bibcode = 1971SSRv...12..136M| refs2cid = harv122125855}}

| publisher = [[Sterling Publishing Co.]]

| publisher = [[Kalmbach Books]]