RDDM Index

Albedo Catena Cavus Chaos Chasma Collis Crater Dorsum Fluctus Fossa Labes Labyrinthus Lacus Lingula Macula Mare Mensa Mons Palus Patera Planitia Planum Regio Rupes Scopulus Serpens Sinus Sulcus Terra Tholus Unda Vallis Vastitas

List of terrae

Terra (plural terræ) is a word of Latin origin that designates the Earth, the soil. It is used for very large areas of land. It is used, for example, in connection with Mars to identify the old, highly cratered terrains that abound in the southern hemisphere. Most of the regions belonging to this type are the same as those of the nomenclature of Giovanni Schiaparelli.

The [names in grey and italics] in the tables are dropped or moved, referenced here because they may appear in older documents. Latitudes and longitudes in white are planetocentric. Those in orange use the older planetographic system.

Name	Entity	Type	Lat	Lon	Ø km	Quad	Origin
Aonia Terra	Mars	Terra	-60.20	262.95	3873.48	mc25	Classical albedo feature name.
Arabia Terra	Mars	Terra	21.25	5.72	4851.74	mc12	Classical albedo feature name.
Margaritifer Terra	Mars	Terra	-1.85	335.08	2733.22	mc19	Classical albedo feature name.
Noachis Terra	Mars	Terra	-50.41	354.84	5519.45	mc26	Classical albedo feature name.
Promethei Terra	Mars	Terra	-64.37	97.00	3244.30	mc28	Classical albedo feature name.
Tempe Terra	Mars	Terra	38.69	289.39	1954.94	mc03	From albedo feature at 40°N, 70°W.
Terra Cimmeria	Mars	Terra	-32.68	147.75	5855.87	mc29	Classical albedo feature name.
[Terra Meridiani]	Mars	Terra	-7.12	4.00	1622.00	mc20	Classical albedo feature name. Name dropped when new boundaries for regional features were defined in July, 2001.
Terra Sabaea	Mars	Terra	2.72	51.30	4688.44	mc13	Classical albedo feature name.
Terra Sirenum	Mars	Terra	-39.49	205.85	3635.18	mc24	Classical albedo feature name.
Tyrrhena Terra	Mars	Terra	-11.90	88.84	2470.14	mc21	Classical albedo feature name.
Xanthe Terra	Mars	Terra	1.60	311.95	1867.65	mc10	Classical albedo feature name.

T - Index by entity

List of tholi

Tholus (plural tholi) is the Latin name for a dome or cupola. On Mars, small dome-shaped mountains or hills (usually corresponding to the cone of a stratovolcano, mostly volcanoes with fairly steep slopes) smaller than mounts (often shield volcanoes)
are called tholi.

Name	Entity	Type	Lat	Lon	Ø km	Quad	Origin
Albor Tholus	Mars	Tholus	18.87	150.47	158.38	mc15	Classical albedo feature name.
Aonia Tholus	Mars	Tholus	-59.04	279.96	53.69	mc25	Classical albedo feature name.
Apollinaris Tholus	Mars	Tholus	-17.64	175.75	32.39	mc23	Albedo feature name.
[Australis Tholus]	Mars	Tholus	-58.70	37.00	40.00	mc27	Classical albedo feature name; dropped in 1978.
Biblis Tholus	Mars	Tholus	2.52	235.62	168.60	mc09	Classical albedo feature name.
Ceraunius Tholus	Mars	Tholus	24.00	262.75	128.58	mc09	Classical albedo feature name.
Cerberus Tholi	Mars	Tholus	4.48	164.41	698.00	mc15	Classical albedo feature name.
[Charitum Tholus]	Mars	Tholus	-54.68	319.00	0.00	mc26	Changed to Oceanidum Mons, 1984.
E. Mareotis Tholus	Mars	Tholus	35.92	274.87	4.60	mc03	Classical albedo name.
Hecates Tholus	Mars	Tholus	32.12	150.24	181.57	mc07	Classcial albedo feature name.
[Iaxartes Tholus]	Mars	Tholus	71.80	345.00	53.00	mc01	Classical albedo feature name; name dropped 1979.
Issedon Tholus	Mars	Tholus	36.05	265.17	54.53	mc03	Classical albedo name.
Jovis Tholus	Mars	Tholus	18.20	242.59	58.07	mc09	Classical albedo feature name.
[Kison Tholus]	Mars	Tholus	72.81	2.00	50.00	mc01	Classical albedo feature name; name dropped in 1979.
N. Mareotis Tholus	Mars	Tholus	36.38	273.79	3.58	mc03	Classical albedo name.
Nia Tholus	Mars	Tholus	-6.59	285.05	34.01	mc18	Classical albedo feature name.
Nili Tholus	Mars	Tholus	9.15	67.35	7.00	mc13	Classical albedo feature name.
Noctis Tholus	Mars	Tholus	-12.30	261.80	18.00	mc17	Classical albedo feature name, Noctis Lacus.
[Ortygia Tholus]	Mars	Tholus	69.78	352.00	100.00	mc01	Classical albedo feature name; dropped in 1979.
Scandia Tholi	Mars	Tholus	73.91	201.28	398.27	mc01	Named for classical albedo feature at 65°N, 150°W.
Sirenum Tholus	Mars	Tholus	-34.64	215.21	53.90	mc24	Classical albedo feature name.
Sisyphi Tholus	Mars	Tholus	-75.68	341.47	27.52	mc30	Classical albedo feature name.
Tharsis Tholus	Mars	Tholus	13.25	269.31	149.30	mc09	Classical albedo feature name.
Ulysses Tholus	Mars	Tholus	2.96	238.50	102.47	mc09	Classical albedo feature name.
Uranius Tholus	Mars	Tholus	26.25	262.43	61.39	mc09	Classical albedo feature name.
W. Mareotis Tholus	Mars	Tholus	35.56	272.04	13.19	mc03	Classical albedo name.
Zephyria Tholus	Mars	Tholus	-19.75	172.92	35.95	mc23	Albedo feature name.

U - Index by entity

List of undae

Unda (plural undae) is a Latin word meaning "wave"; it is used to refer to geological formations of undulating shape.

Latitudes and longitudes in white are planetocentric. Those in orange use the older planetographic system.

Name	Entity	Type	Lat	Lon	Ø km	Quad	Origin
Abalos Undae	Mars	Unda	78.52	272.50	442.74	mc01	Classical albedo feature at 72°N, 70°W.
Aspledon Undae	Mars	Unda	73.06	309.65	215.20	mc01	Classical albedo feature name.
Hyperboreae Undae	Mars	Unda	79.96	310.51	463.65	mc01	Classical albedo feature name.
Ogygis Undae	Mars	Unda	-49.66	293.79	87.70	mc25	Classical albedo feature name: Ogygis Regio.
Olympia Undae	Mars	Unda	81.16	178.48	1507.96	mc01	Classical albedo feature name.
Siton Undae	Mars	Unda	75.55	297.28	222.97	mc01	Classical albedo feature name.