Difference between revisions of "Elger, 1895"

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=Elger: ''The Moon'' (1895)=
 
=Elger: ''The Moon'' (1895)=
 
  (glossary entry)<br /> <div id="toc">
 
  (glossary entry)<br /> <div id="toc">
=Table of Contents=
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<br />  
<div style="margin-left: 1em">[#Elger: The Moon (1895) Elger: The Moon (1895)]</div><div style="margin-left: 2em">[#Elger: The Moon (1895)-Description Description]</div><div style="margin-left: 2em">[#Elger: The Moon (1895)-Additional Information Additional Information]</div><div style="margin-left: 3em">[#Elger: The Moon (1895)-Additional Information-Antiquated Spellings Antiquated Spellings]</div><div style="margin-left: 3em">[#Elger: The Moon (1895)-Additional Information-Discontinued Names Discontinued Names]</div><div style="margin-left: 2em">[#Elger: The Moon (1895)-Description: Wikipedia Description: Wikipedia]</div><div style="margin-left: 2em">[#Elger: The Moon (1895)-LPOD Articles LPOD Articles]</div><div style="margin-left: 2em">[#Elger: The Moon (1895)-Bibliography Bibliography]</div></div><br />  
 
 
==Description==
 
==Description==
  Thomas Gwyn Elger's ''[http://www.gutenberg.org/files/17712/17712.txt The Moon: A Full Description And Map Of Its Principal Physical Features]'' is one of the little known classics from the [http://www.lpod.org/cwm/Timeline/1800s/timeline1800s.htm golden age] of visual lunar observing. Because it is in the public domain, and freely available through the kind services of [http://www.gutenberg.org/etext/17712 Project Gutenberg] and Steve Ridgway (who transcribed it electronically), Chuck has chosen to use it to add a historical perspective to the descriptions of lunar features on '''''the-Moon Wiki'''''. Elger was a careful observer, and if nothing else it gives a good impression of what can be observed by eye, through a small telescope, from Earth. In recognition of his accomplishments, a [/Elger 21-km diameter crater] on the Moon's nearside is named after him.<br /> <br />  
+
  Thomas Gwyn Elger's ''[http://www.gutenberg.org/files/17712/17712.txt The Moon: A Full Description And Map Of Its Principal Physical Features]'' is one of the little known classics from the [http://www.lpod.org/cwm/Timeline/1800s/timeline1800s.htm golden age] of visual lunar observing. Because it is in the public domain, and freely available through the kind services of [http://www.gutenberg.org/etext/17712 Project Gutenberg] and Steve Ridgway (who transcribed it electronically), Chuck has chosen to use it to add a historical perspective to the descriptions of lunar features on '''''the-Moon Wiki'''''. Elger was a careful observer, and if nothing else it gives a good impression of what can be observed by eye, through a small telescope, from Earth. In recognition of his accomplishments, a [[Elger|21-km diameter crater]] on the Moon's nearside is named after him.<br /> <br />  
 
==Additional Information==
 
==Additional Information==
 
* Two copies of Elger can also be viewed as a searchable on-line "flip-book" or PDF download at the Internet Archive: [http://www.archive.org/details/moonfulldescript00elgerich Copy 1] or [http://www.archive.org/details/moonfulldescript00elgeuoft Copy 2].
 
* Two copies of Elger can also be viewed as a searchable on-line "flip-book" or PDF download at the Internet Archive: [http://www.archive.org/details/moonfulldescript00elgerich Copy 1] or [http://www.archive.org/details/moonfulldescript00elgeuoft Copy 2].
<br />  In many cases Elger's terminology differs from that in modern use. In particular, Elger wrote his book in an era when the convention for what should be regarded as east and west on the Moon was the reverse of the [/IAU%20directions IAU directions] used today. For '''''the-Moon Wiki''''', the Easts and Wests in most of the entries from Elger have been converted to the modern IAU usage. So if a passage is marked ''IAU Directions'' it will be consistent with E being on the Crisium side of the Moon. A few older entries may be in Elger's original reversed E-W format.<br /> <br />  
+
<br />  In many cases Elger's terminology differs from that in modern use. In particular, Elger wrote his book in an era when the convention for what should be regarded as east and west on the Moon was the reverse of the [[IAU%20directions|IAU directions]] used today. For '''''the-Moon Wiki''''', the Easts and Wests in most of the entries from Elger have been converted to the modern IAU usage. So if a passage is marked ''IAU Directions'' it will be consistent with E being on the Crisium side of the Moon. A few older entries may be in Elger's original reversed E-W format.<br /> <br />  
 
===Antiquated Spellings===
 
===Antiquated Spellings===
 
<br />  You will also encounter a number of terms that are not in common use today. For example:<br /> <br />  
 
<br />  You will also encounter a number of terms that are not in common use today. For example:<br /> <br />  
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| '''ELGER'S SPELLING'''<br />
 
| '''ELGER'S SPELLING'''<br />
 
|
 
|
[/IAU%20Nomenclature IAU Spelling]<br />
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[[IAU%20nomenclature|IAU Spelling]]<br />
 
|-
 
|-
 
| ALPS<br />
 
| ALPS<br />
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<br />  
 
<br />  
 
===Discontinued Names===
 
===Discontinued Names===
<br />  Several names Elger used do not match any currently approved name in the [/IAU%20Nomenclature IAU Nomenclature]. Those features, of course, still exist, they are just no longer named:<br /> <br />  D'ALEMBERT MOUNTAINS<br />  DORFEL MOUNTAINS<br />  LEIBNITZ MOUNTAINS<br />  ORIANI<br />  PROM. AENARIUM<br />  THE HERCYNIAN MOUNTAINS<br />  THE HUMBOLDT MOUNTAINS<br />  THE NORTH POLAR RANGE<br />  THE PERCY MOUNTAINS<br />  THE SILBERSCHLAG RANGE<br />  THE SINUS IRIDUM HIGHLANDS<br />  THE STAG'S-HORN MOUNTAINS<br /> <br />  Finally, it appears that Elger did not stick strictly to the convention of referring to [/Satellite%20Feature satellite craters] with Roman letters and elevations (peaks) with Greek letters -- a practice that was used by many of his contemporaries. Although he frequently ''did'' use Greek letters in this way, his references to something like ''Fontinelle A'' may still be to a peak near '''Fontenelle''' rather than to the modern lettered crater of that name.<br /> <br /> <span class="membersnap">- [http://www.wikispaces.com/user/view/JimMosher [[Image:JimMosher-lg.jpg|16px|JimMosher]]] [http://www.wikispaces.com/user/view/JimMosher JimMosher]</span><br /> <br />  
+
<br />  Several names Elger used do not match any currently approved name in the [[IAU%20nomenclature|IAU Nomenclature]]. Those features, of course, still exist, they are just no longer named:<br /> <br />  D'ALEMBERT MOUNTAINS<br />  DORFEL MOUNTAINS<br />  LEIBNITZ MOUNTAINS<br />  ORIANI<br />  PROM. AENARIUM<br />  THE HERCYNIAN MOUNTAINS<br />  THE HUMBOLDT MOUNTAINS<br />  THE NORTH POLAR RANGE<br />  THE PERCY MOUNTAINS<br />  THE SILBERSCHLAG RANGE<br />  THE SINUS IRIDUM HIGHLANDS<br />  THE STAG'S-HORN MOUNTAINS<br /> <br />  Finally, it appears that Elger did not stick strictly to the convention of referring to [[Satellite%20feature|satellite craters]] with Roman letters and elevations (peaks) with Greek letters -- a practice that was used by many of his contemporaries. Although he frequently ''did'' use Greek letters in this way, his references to something like ''Fontinelle A'' may still be to a peak near '''Fontenelle''' rather than to the modern lettered crater of that name.<br /> <br /> <span class="membersnap">- JimMosher</span><br /> <br />  
 
==Description: Wikipedia==
 
==Description: Wikipedia==
 
[http://en.wikipedia.org/wiki/Thomas_Gwyn_Elger wikipedia]<br /> <br />  
 
[http://en.wikipedia.org/wiki/Thomas_Gwyn_Elger wikipedia]<br /> <br />  
 
==LPOD Articles==
 
==LPOD Articles==
[http://www.lpod.org/?m=20060227 Elger Reborn?] [http://www.lpod.org/archive/archive/2004/03/LPOD-2004-03-28.htm A Quadrant of Elger] [http://www.lpod.org/archive/archive/2004/05/LPOD-2004-05-11.htm Who Named that Crater?] [http://www.lpod.org/?page_id=391 Ray Systems]<br /> <br />  
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[http://www2.lpod.org/wiki/February_27,_2006 Elger Reborn?] [http://www2.lpod.org/wiki/March_28,_2004 A Quadrant of Elger] [http://www2.lpod.org/wiki/May_11,_2004 Who Named that Crater?] [http://www.lpod.org/?page_id=391 Ray Systems]<br /> <br />  
 
==Bibliography==
 
==Bibliography==
  
 
* Full Elger text with E-W directions in modern style:
 
* Full Elger text with E-W directions in modern style:
** <div class="objectEmbed">[/file/view/Elger_17712-converted_to_IAU_directions.txt/30779487/Elger_17712-converted_to_IAU_directions.txt [[Image:plain.png|32px|Elger_17712-converted_to_IAU_directions.txt]]]<div>[/file/view/Elger_17712-converted_to_IAU_directions.txt/30779487/Elger_17712-converted_to_IAU_directions.txt Elger_17712-converted_to_IAU_directions.txt]<br />
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** <div class="objectEmbed">[[media:Elger_17712-converted_to_IAU_directions.txt]]<br />
*** [/file/detail/Elger_17712-converted_to_IAU_directions.txt Details]
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</div>
*** [/file/view/Elger_17712-converted_to_IAU_directions.txt/30779487/Elger_17712-converted_to_IAU_directions.txt Download]
 
*** 425 KB</div></div>
 
 
* Fielder, Gilbert. 1963. Some Lunar Studies by T. G. Elger. ''Sky and Telescope'' Vol. 15, No. 4 (May issue), pp. 248-251. ''article illustrated by drawings made by Elger between 1884 and 1896, with particular emphasis on his depiction of "lineaments"''
 
* Fielder, Gilbert. 1963. Some Lunar Studies by T. G. Elger. ''Sky and Telescope'' Vol. 15, No. 4 (May issue), pp. 248-251. ''article illustrated by drawings made by Elger between 1884 and 1896, with particular emphasis on his depiction of "lineaments"''
 
<br /> <br />
 
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  This page has been edited 1 times. The last modification was made by <span class="membersnap">- [http://www.wikispaces.com/user/view/tychocrater [[Image:tychocrater-lg.jpg|16px|tychocrater]]] [http://www.wikispaces.com/user/view/tychocrater tychocrater]</span> on Jun 13, 2009 3:24 pm - ''mgx1''</div>
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  </div>

Latest revision as of 21:19, 22 April 2018

Elger: The Moon (1895)

(glossary entry)


Description

Thomas Gwyn Elger's The Moon: A Full Description And Map Of Its Principal Physical Features is one of the little known classics from the golden age of visual lunar observing. Because it is in the public domain, and freely available through the kind services of Project Gutenberg and Steve Ridgway (who transcribed it electronically), Chuck has chosen to use it to add a historical perspective to the descriptions of lunar features on the-Moon Wiki. Elger was a careful observer, and if nothing else it gives a good impression of what can be observed by eye, through a small telescope, from Earth. In recognition of his accomplishments, a 21-km diameter crater on the Moon's nearside is named after him.

Additional Information

  • Two copies of Elger can also be viewed as a searchable on-line "flip-book" or PDF download at the Internet Archive: Copy 1 or Copy 2.


In many cases Elger's terminology differs from that in modern use. In particular, Elger wrote his book in an era when the convention for what should be regarded as east and west on the Moon was the reverse of the IAU directions used today. For the-Moon Wiki, the Easts and Wests in most of the entries from Elger have been converted to the modern IAU usage. So if a passage is marked IAU Directions it will be consistent with E being on the Crisium side of the Moon. A few older entries may be in Elger's original reversed E-W format.

Antiquated Spellings


You will also encounter a number of terms that are not in common use today. For example:

ELGER'S TERM
Modern Term
walled plain or ring plain
crater
cleft
rille

(list to be expanded...)

Also, Elger used what are now antiquated names for a number of the lunar features. Some of these have been replaced by newer names, others have been dropped.

ELGER'S SPELLING

IAU Spelling

ALPS
Montes Alpes
ANAXIMINES
Anaximenes
APENNINES
Montes Apenninus
AZOUT
Auzout
BACON
Baco
BERNOUILLI
Bernoulli
BOND, G.P
G. Bond
BOUVARD
Vallis Bouvard
BURG
Bürg
BUSCHING
Büsching
CAPE AGARUM
Promontorium Agarum
CAROLINE HERSCHEL
C. Herschel
CARPATHIANS
Montes Carpatus
CATHERINA
Catharina
CAUCASUS
Montes Caucasus
CONDAMINE
La Condamine
CRUGER
Crüger
FONTINELLE
Fontenelle
GALILEO
Galilaei
GARTNER
Gärtner
GRUITHUISEN DELTA
Mons Gruithuisen Delta
GRUITHUISEN GAMMA
Mons Gruithuisen Gamma
GUERIKE
Guericke
GUTTEMBERG
Gutenberg
HAEMUS MOUNTAINS
Montes Haemus
HARBINGER MOUNTAINS
Montes Harbinger
HEVEL
Hevelius
ISODORUS
Isidorus
J.F.W. HERSCHEL
J. Herschel
KASTNER
Kästner
LA PEYROUSE
La Pérouse
LACAILLE
La Caille
LAHIRE
Mons La Hire
LANDSBERG
Lansberg
LEGENTIL
Le Gentil
LEVERRIER
Le Verrier
LINNE
Linné
LUBIENIEZKY
Lubiniezky
MACCLURE
McClure
MADLER
Mädler
MOSTING
Mösting
MOUNT ARGAEUS
Mons Argaeus
MOUNT BRADLEY
Mons Bradley
MOUNT HADLEY
Mons Hadley
MOUNT HUYGENS
Mons Huygens
MOUNT WOLF
Mons Wolff
OTTO STRUVE
Struve
OTTO STRUVE A
reference to the crater Eddington?
PICO
Mons Pico
PINGRE
Pingré
PITON
Mons Piton
PONTECOULANT
Pontécoulant
PROMONTORY ACHERUSIA
Promontorium Archerusia
REAUMUR
Réaumur
ROMER
Römer
SCHROTER
Schröter
SOMMERING
Sömmering
STOFLER
Stöfler
TAQUET
Tacquet
TAURUS MOUNTAINS
Montes Taurus
THE ALTAI MOUNTAINS
Rupes Altai
THE HERACLIDES PROMONTORY
Promontorium Heraclides
THE LAPLACE PROMONTORY
Promontorium Laplace
THE STRAIGHT RANGE
Montes Recti
THE STRAIGHT WALL
Rupes Recta
THE TENERIFFE MOUNTAINS
Montes Teneriffe
TOBIAS MAYER
T. Mayer
VASCO DE GAMA
Vasco da Gama
W. HUMBOLDT
Humboldt
W.C. BOND
W. Bond
WALTER
Walther
WILHELM I
Wilhelm
ZUCHIUS
Zucchius


Discontinued Names


Several names Elger used do not match any currently approved name in the IAU Nomenclature. Those features, of course, still exist, they are just no longer named:

D'ALEMBERT MOUNTAINS
DORFEL MOUNTAINS
LEIBNITZ MOUNTAINS
ORIANI
PROM. AENARIUM
THE HERCYNIAN MOUNTAINS
THE HUMBOLDT MOUNTAINS
THE NORTH POLAR RANGE
THE PERCY MOUNTAINS
THE SILBERSCHLAG RANGE
THE SINUS IRIDUM HIGHLANDS
THE STAG'S-HORN MOUNTAINS

Finally, it appears that Elger did not stick strictly to the convention of referring to satellite craters with Roman letters and elevations (peaks) with Greek letters -- a practice that was used by many of his contemporaries. Although he frequently did use Greek letters in this way, his references to something like Fontinelle A may still be to a peak near Fontenelle rather than to the modern lettered crater of that name.

- JimMosher

Description: Wikipedia

wikipedia

LPOD Articles

Elger Reborn? A Quadrant of Elger Who Named that Crater? Ray Systems

Bibliography

  • Fielder, Gilbert. 1963. Some Lunar Studies by T. G. Elger. Sky and Telescope Vol. 15, No. 4 (May issue), pp. 248-251. article illustrated by drawings made by Elger between 1884 and 1896, with particular emphasis on his depiction of "lineaments"