IAU 1964

( the following is excerpted from the book published by Academic Press in 1966)


Edited by
General Secretary of the Union

from pp. 202-205


D. W. G. Arthur

The lunar nomenclature proposed by the Lunar and Planetary Laboratory of thc University of Arizona is a revised and extended form of that of Blagg and Müller, which was authorized by the Union in 1932. We have attempted to eliminate certain illogical and inconvenient situations in the Blagg and Müller scheme, but all major changes are restricted to the extreme limb regions where the Blagg and Müller scheme, and for that matter, all previous maps, are somewhat unrealistic. The scheme is based on a lengthy and thorough survey of the best available photographs and is embodied in the following documents.

(i) The System of Lunar Craters, Communications of the Lunar and Planetary Laboratory. This work is in four parts with a catalog and map for each of the four lunar quadrants.

(ii) Lunar and Planetary Designations, Arthur and Agnieray, University of Arizona Press. A two-color map in four parts.

(iii) The Rectified Lunar Atlas, Whitaker et al. University of Arizona Press. This gives the names but not the letters.

(iv) The L.A.C. lunar topographic maps at 1: 1 000 000 of the Aeronautical Chart and Information Center of the U.S. Air Force. These are available by subscription.

The above indicates that the proposed scheme is not subject to the drawback of limited distribution, which somewhat hampered the diffusion and acceptance of the Blagg and Müller nomenclature.

As already stated, no major changes were made in the central areas of the disk, except the deletion of a few names which were duplicated elsewhere. In these areas we merely intensified the existing scheme by adding additional letters. The situation near the limb is basically different in that recent intensive cartographic work, coupled with a changeover to conformal projection, makes the Blagg and Müller scheme quite inadequate for contemporary lunar cartography. To eliminate some serious and widespread difficulties, some 6o new names were added in the extreme limb regions. Almost all of these fall in areas which are very poorly represented in all the older maps.

The demands of tradition and continuity were given full weight throughout, even though these often prevented the development of a completely logical scheme of lunar nomenclature.

Table I : New names


Name Approximate position of center Diameter (Unit 0.001 R) Previous identifications
Abel 85.5 E 34.5 S 50 Abel (Franz 225)
Amundsen 93.0 E 84.0 S 55 Amundsen (Wilkins and Moore)
Aston 87.5 W 33.0 N 25 Ulugh Beigh E (IAU 1897a) = (Franz 795)
Baade 82.5 W 45.0 S 26 Inghirami D (IAU 2251) = Hall (Franz
Balboa 83.5 W 19.0 N 40
Balmer 70.0 E 20.0 S 75
Banachiewicz 80.5 E 5.5 N 63
Barnard 86.5 E 29.5 S 60
Belkovich 87.0 E 61.5 N 105
Bohr 86.5 W 12.5 N 50
Boltzmann 96.0 W 75.5 S 40
Boole 85.0 W 64.0 N 37
Boss 89.5 E 46.0 N 27
Brianchon 85.0 W 74.5 N 72 Carpenter C (IAU 1695) = Anaximander d (Franz 547)
Bunsen 85.5 W 41.0 N 44
Byrd 10.0 E 85.0 N 52 Gioja A (IAU 1018a)
Cannon 81.5 E 20.0 N 31 Alhazen F (IAU 25)
Cremona 86.0 W 67.5 N 55
Dalton 84.5 W 17.0 N 35
Desargues 73.5 W 70.5 N 55 Anaximander C (IAU 1693) (misprinted? as Anaximander) = Anaximander p (Franz 555)
De Sitter 38.0 E 79.5 N 37 Euctemon J (IAU 999c)
Drygalski 82.0 W 79.5 S 97 Casatus G (IAU 3294a) = Drygalski (Fauth) = Cabeus (Franz 839)= Casatus (Schr.)
Dubiago 70.0 E 4.5 N 21 Neper A (IAU 7)
Eddington 72.0 W 22.0 N 77 Otto Struve A (IAU 1902)
Einstein 88.5 W 16.5 N 100
Fermi 89 .5 W 7.5 N 48
Gibbs 84.5 E 18.5 S 40 Hecataeus D (IAU 4752)
Gilbert 76.5 E 3.5 S 63
Gill 77.0 E 63.5 S 35
Goddard 89.0 E 15.0 N 43 Mare Marginis k (Franz 1274)
Hale 90.0 E 74.5 S 48
Hamilton 84.0 E 42.5 S 32 Marinus K (IAU 4559a) = Kelvin (Franz
Hartwig 80.5 W 6.5 S 50 Possibly Riccioli E (IAU 1964)
Hayn 84.0 E 64.5 N 46 Strabo G (IAU 424e)
Hedin 76.5 W 3.0 N 74 Sven Hedin (Fauth)
Hermite 80.0 W 86.0 N 65
Hubble 86.5 E 22.0 N 42 Plutarch A (IAU 26a) = Plutarch (Franz
Jansky 90.0 E 8.5 N 35
Jeans 94.0 E 57.0 S So Mare Australe q (Franz 1357)
Kapteyn 70.5 E 10.5 S 29 Lapeyrouse B (lAU 4769)
Krasnov 80.0 W 30.0 S 23 Lagrange F (IAU 2228)=(Franz 837)
Lamarck 70.0 W 22.5 S 55 Southern part of Darwin (lAU 2081)
Lamé 64.5 E 14.5 S 46 Vendelinus C (IAU 4699)
Langley 86.5 W 51.0 N 37 Regnault (Schm.)
Liapunov 90.0E 26.5 N 36 Timoleon (Schm.)
Lyot 84.0 E 50.5 S 63 Brisbane G (IAU 4540b)
Markov 62.5 W 53.5 N 24 Oenopides A (IAU 1713)
Moseley 91.0 W 21.0 N 45
Nansen 88.0 E 80.5 N 60 Contains Franz’s points 468 and 469
Pascal 68.5 W 74.5 N 63 Carpenter D (IAU 1361 and 1694) =
Anaximander c (Franz 546)
Peary 20.0 E 87.5 N 50 Gioja B (IAU 1018b)
Planck 87.0 W 8.0 N 45
Poncelet 54.0 W 75.5 N 40 Anaximenes F (IAU 1359a) = (Franz 562)
Rayleigh 89.5 E 29.0 N 52
Riemann 87.5 E 39.5 N 60
Rontgen 89.0 W 33.0 N 56
Russell 75.5 W 26.5 N 55 Northern part of Otto Struve (IAU 1901)
Schlüter 83.5 W 6.0 S So Malvasia (Schr.) Floor contains Mare Hiemis (lAU 1975a). Possibly=Riccioli A (IAU 1962)
Scott 47.0 E 82.5 S 6o Scott (Wilkins and Moore)
Shaler 85.0 W 33.0 S 22
Stefan* 94.0 W 72.0 S 78
Stokes 89.0 W 72.0 N 35
Sylvester 79.5 W 82.5 N 35 Philolaus p (Franz 730)
Volta 85.0 W 53.5 N 65
Wright 86.5 W 31.5 S 22
Joliot-Curie 93.0 E 25.5 N 82 Note: Floor contains Mare Novum (IAU 140a}, which is Joliot-Curie of the Soviet Lunik III photography.

*Possibly not a true formation.

Explanation of symbols

IAU : Blagg and Müller, Named Lunar Formations, 1935
Schm. Schmidt, J., Charte der Gebirge des Mondes, 1878
Schr. Schröter, Selenotopographische Fragmente, 1791 and 1802
R = lunar radius

Table 2 : Nomenclature revisions



J. Cassini, Mare Novum, W. Pickering, Schneckenberg


Montes Rook

Additions (see also Table I)

Rupes Cauchy, Rupes Kelvin, Rupes Liebig, Vallis Baade, Vallis Inghirami, Mare Cognitum

Changed outlines

Anaximander, Darwin, Hecateus, Meton, Struve

Changed identifications

Brisbane, Regnault, Ulugh Beigh

Spelling changes etc.

La Caille, La Condamine, La Hire, La Pérouse, Le Gentil, Le Monnier, Le Verrier, Regnault, Mare Struve, Struve


Mons Argaeus, Montes Apenninus, Montes Carpatus, Montes Caucasus, Montes Cordillera, Montes D’Alembert, Montes Doerfel, Montes Haemus, Montes Harbinger, Montes Hercynii, Montes Jura, Montes Leibnitz, Montes Pyrenaeus, Montes Recti, Montes Riphaeus, Montes Rook, Montes Taurus, Montes Teneriffe, Vallis Alpes, Vallis Rheita, Vallis Schröteri, Rupes Altai, Rupes Cauchy, Rupes Recta, Rima Ariadaeus, Rima Byrgius, Rima Hyginus, Rima Sirsalis, Prom. Fresnel, Prom. Kelvin.

Une discussion genérale à lieu a laquelie participent notamment MM. Arthur, Dollfus, le Père Hoyden, Hopman, Kopal, Martynov, Menzel, Rackham, Rösch, Shoemaker, Tombaugh, Wildt.

Ii est recornmandé d’éviter de faire précéder les noms propres par les initailes de prénoms lorsque cellos-ci ne sont pas nécessaires.

Le rapport précédent est adopté.

L’impact de la sonde spatiale Range VII dans la région sombre lunaire elliptique comprise entre les cratères Guéricke, Bompland, Darney et Montes Riphaeus a attiré l’attention sur le fait quo cette mer n’était pas clairement dénommée.
Le Professeur Kuiper propose deux noms possibles: Mare Exploratum ou Mare Cognitum.

Apres one attentive discussion, la désignation Mare Cognitum est retenue.

Le comité `Nomenclature et Cartographic de la Surface Lunaire’ est maintenu avec sa composition initiale complétée par le Dr Arthur.


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