Ash Observatory Lunar 100 51-100

Click image for full size	L	Feature Name	Significance	Latitude Deg's	Longitude Deg's	Diameter (km)	Rükl Chart
	51	Davy Crater Chain	Result of comet fragment impact	11.1S	6.6W	50	43
	52	Crüger	Possible volcanic caldera	16.7S	66.8W	45	50
	53	Lamont	Possible buried basin	4.4N	23.7E	106	35
	54	Hippalus Rilles	Rilles concentric to Humorum basin	24.5S	29.0W	240	52, 53
	55	Baco	Unusally smooth crater floor & surrounding plains	51.0S	19.1E	69	74
	56	Australe Basin	Partially flooded ancient basin	49.8S	84.5E	880	76
	57	Reiner Gamma	Conspicuous swirl & magnetic anomaly	7.7N	59.2W	70	28
	58	Rheita Valley	Basin secondary-crater chain	42.5S	51.5E	445	68
	59	Schiller-Zucchius Basin	Badly degraded overlooked basin	56.0S	45.0W	335	70, 71
	60	Kies Pi	Volcanic dome	26.9S	24.2W	45	53
	61	Mösting A	Simple crater close to center of lunar near side	3.2S	5.2W	13	43
	62	Rümker	Large volcanic dome	40.8N	58.1W	70	8
	63	Imbrium Sculpture	Basin ejecta near & overlying Boscovich & Julius	11.0N	12.0E	-	34
	64	Descartes	Apollo 16 landing site; putative region of highland volcanism	11.7S	15.7W	48	45
	65	Hortensius Domes	Dome field north of Hortensius	7.6N	27.9W	10	30
	66	Hadley Rille	Lava channel near Apollo 15 landing site	25.0N	3.0E	-	22
	67	Fra Mauro Formation	Apollo 14 landing site on Imbrium ejecta	3.6S	17.5W	-	42
	68	Flamsteed P	Proposed young volcanic crater & Surveyor 1 landing site	3.0S	44.0W	112	40
	69	Copernicus Secondary Craters	Rays & craterlets near Pytheas	19.6N	19.1 W	4	20
	70	Humboldtianum Basin	Multi-ring impact basin	57.0N	80.0E	650	7
	71	Sulpicius Gallus Dark Mantle	Ash eruptions north of crater	19.6N	11.6E	12	23
	72	Atlas Dark-Halo Craters	Explosive volcanic pits on the floor of Atlas	46.7N	44.4E	87	15
	73	Smythii Basin	Difficult to observe scarp & mare	2.0S	87.0E	740	38, 49
	74	Copernicus H	Dark-Halo crater	6.9N	18.3W	5	31
	75	Ptolemaeus B	Saucer like depression on the floor of Ptolemaeus	8.0S	0.8W	16	44
	76	W. Bond	Large crater degraded by Imbrium ejecta	65.3N	3.7E	158	4
	77	Sirsalis Rille	Procellarum basin radial rilles	15.7S	61.7W	425	39, 50
	78	Lambert R	Buried ghost crater	23.8N	20.6W	54	20
	79	Sinus Aestuum	Eastern dark mantle volcanic deposit	12.0N	3.5W	90	33
	80	Orientale Basin	Youngest large impact basin	19.0S	95.0W	930	50
	81	Hesiodus A	Concentric crater	30.1S	17.0W	15	54
	82	Linné	Small crater once thought to have disappeared	27.7N	11.8E	2.4	23
	83	Plato Craterlets	Crater pits at limits of detection	51.6N	9.4W	101	3, 4
	84	Pitatus	Crater with concentric rilles	29.8S	13.5W	97	54
	85	Langrenus Rays	Aged ray system	8.9S	60.9E	132	49
	86	Prinz Rilles	Rille system near the crater Prinz	27.0N	43.0W	46	19
	87	Humboldt	Crater with central peaks & dark spots	27.0S	80.9E	207	60
	88	Peary	Difficult to observe polar crater	88.6N	33.0E	74	4, 11
	89	Valentine Dome	Volcanic dome	30.5N	10.1E	30	13
	90	Armstrong,Aldrin & Collins	Small craters near the Apollo 11 landing site	1.3N	23.7E	3	35
	91	De Gasparis Rilles	Area with many rilles	25.95S	50.7W	30	51
	92	Gylden Valley	Part of the Imbrium radial sculpture	5.1S	0.7E	47	44
	93	Dionysius Rays	Unusual & rare dark rays	2.8N	17.3E	18	35
	94	Drygalski	Large south pole region crater	79.35S	84.9W	162	72, VI
	95	Procellarum Basin	Moon's largest basin	23.0N	15.0W	3200	-
	96	Leibnitz Mountains	Rim of south pole-Aitken basin	85.0S	30.0E	-	73, V
	97	Inghirami Valley	Orientale basin ejecta	44.0S	73.0W	140	61
	98	Imbrium Lava Flows	Mare lava flow boundaries	32.8N	22.0W	-	10
	99	Ina	D-shaped volcanic caldera	18.6N	5.3E	3	22
	100	Mare Marginis Swirls	Possible magnetic field deposits	18.5N	88.0E	-	27, III
Click image for full size	L	Feature Name	Significance	Latitude Deg's	Longitude Deg's	Diameter (km)	Rükl Chart