Difference between revisions of "October 28, 2004"

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=Britannic Moon=
 
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<img src="archive/2004/10/images/LPOD-2004-10-28.jpeg" border="0">
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    <tr><td><div align="center" class="main_sm">Image Credit: Ian at Aquatint
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<tr><td><div align="center" class="main_sm">Image Credit: Ian at Aquatint
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<p align="center"><b>Britannic Moon</b></p>
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<p align="center"><b>Britannic Moon</b></p>
<p align="left">The <i>Encyclopedia Britannica </i>has been the undisputed leader of English-language encyclopedias since it first appeared in 1768. Its articles were and are authoritative and often exhaustive. Thus, this engraving from the 1797 edition should be expected to show the Moon as it was currently known. But like the 1826 lunar map of an earlier [http://www.lpod.org/LPOD-2004-10-18.htm LPOD,]  this map harkens back to the 1600s for its inspiration. The author claims no more, for the chart is labeled, <i> The Moon in her mean libration, with the Spots according to Riccioli, Cassini & c.</i> The overall positioning and depiction of features is derived from Grimaldi's map (which Riccioli supplied names to), and the Greek letter <i>phi</i> in Serenitatis is characteristic of Cassini's full Moon map of 1692. Somehow, the best lunar map produced by that time, Mayer's 1775 chart -  the first based on measured positions - was unknown to Britannica's editors. </p>
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<p align="left">The <i>Encyclopedia Britannica </i>has been the undisputed leader of English-language encyclopedias since it first appeared in 1768. Its articles were and are authoritative and often exhaustive. Thus, this engraving from the 1797 edition should be expected to show the Moon as it was currently known. But like the 1826 lunar map of an earlier [http://www.lpod.org/LPOD-2004-10-18.htm LPOD,]  this map harkens back to the 1600s for its inspiration. The author claims no more, for the chart is labeled, <i> The Moon in her mean libration, with the Spots according to Riccioli, Cassini & c.</i> The overall positioning and depiction of features is derived from Grimaldi's map (which Riccioli supplied names to), and the Greek letter <i>phi</i> in Serenitatis is characteristic of Cassini's full Moon map of 1692. Somehow, the best lunar map produced by that time, Mayer's 1775 chart -  the first based on measured positions - was unknown to Britannica's editors. </p>
<blockquote><p align="right">&#8212; [mailto:chuck@observingthesky.org Chuck Wood]</blockquote>
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<blockquote><p align="right">&#8212; [mailto:tychocrater@yahoo.com Chuck Wood]</blockquote>
 
<p align="left"><p><b>Technical Details:</b><br>
 
<p align="left"><p><b>Technical Details:</b><br>
 
This map recently sold on eBay for $222. I thank the seller, Ian of Acquatint, for permission to use it for LPOD.</p>
 
This map recently sold on eBay for $222. I thank the seller, Ian of Acquatint, for permission to use it for LPOD.</p>
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<br>[http://www.lhl.lib.mo.us/events_exhib/exhibit/exhi Cassini Moon Map]
 
<br>[http://www.lhl.lib.mo.us/events_exhib/exhibit/exhi Cassini Moon Map]
 
<p align="left"><b>Tomorrow's LPOD: </b> Unscrunching Orientale</p>
 
<p align="left"><b>Tomorrow's LPOD: </b> Unscrunching Orientale</p>
<p><img src="MainPage/spacer.gif" width="640" height="1"></p></td>
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<p align="center" class="main_titles"><b>Author &amp; Editor:</b><br>  
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<p align="center" class="main_titles"><b>Author &amp; Editor:</b><br>  
[mailto:chuck@observingthesky.org Charles A. Wood]</p>
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[mailto:tychocrater@yahoo.com Charles A. Wood]</p>
<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
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<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
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[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
<p align="center" class="main_titles"><b>Contact Translator:</b><br>
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<p align="center" class="main_titles"><b>Contact Translator:</b><br>
[mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey]  (Es)<br>
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[mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey]  (Es)<br>
[mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p>
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[mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p>
<p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p>
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<p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p>
<p align="center" class="main_titles"><b>A service of:</b><br>
+
<p align="center" class="main_titles"><b>A service of:</b><br>
[http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p>
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[http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p>
<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
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<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
[http://antwrp.gsfc.nasa.gov/apod/astropix.html" class="one Astronomy] | [http://www.msss.com/" class="one Mars] | [http://epod.usra.edu/" class="one Earth]</p>
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[http://antwrp.gsfc.nasa.gov/apod/astropix.html" class="one Astronomy] | [http://www.msss.com/" class="one Mars] | [http://epod.usra.edu/" class="one Earth]</p>
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<p>&nbsp;</p>
 
<p>&nbsp;</p>
 
 
 
 
 
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===COMMENTS?===  
 
===COMMENTS?===  
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.

Revision as of 18:26, 4 January 2015

Britannic Moon

<nobr>Britannic Moon</nobr>

<img src="archive/2004/10/images/LPOD-2004-10-28.jpeg" border="0">

Image Credit: Ian at Aquatint


Britannic Moon

The Encyclopedia Britannica has been the undisputed leader of English-language encyclopedias since it first appeared in 1768. Its articles were and are authoritative and often exhaustive. Thus, this engraving from the 1797 edition should be expected to show the Moon as it was currently known. But like the 1826 lunar map of an earlier LPOD, this map harkens back to the 1600s for its inspiration. The author claims no more, for the chart is labeled, The Moon in her mean libration, with the Spots according to Riccioli, Cassini & c. The overall positioning and depiction of features is derived from Grimaldi's map (which Riccioli supplied names to), and the Greek letter phi in Serenitatis is characteristic of Cassini's full Moon map of 1692. Somehow, the best lunar map produced by that time, Mayer's 1775 chart - the first based on measured positions - was unknown to Britannica's editors.

Chuck Wood

Technical Details:
This map recently sold on eBay for $222. I thank the seller, Ian of Acquatint, for permission to use it for LPOD.

Related Links:
Riccioli Moon Map
Cassini Moon Map

Tomorrow's LPOD: Unscrunching Orientale



Author & Editor:
Charles A. Wood

Technical Consultant:
Anthony Ayiomamitis

Contact Translator:
" class="one Pablo Lonnie Pacheco Railey (Es)
" class="one Christian Legrand (Fr)

Contact Webmaster

A service of:
" class="one ObservingTheSky.Org

Visit these other PODs:
" class="one Astronomy | " class="one Mars | " class="one Earth

 


COMMENTS?

Click on this icon File:PostIcon.jpg at the upper right to post a comment.