Tycho
43.30° S · 11.22° W
Catalogue dimension: 85.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
100 landscapes.
A new way to see the Moon.
From vast maria to narrow rilles: choose a feature, locate it and keep a record of your observation.
The 100-feature challenge
An educational selection by the portal to discover over several lunar cycles. Check off only what you have actually identified. Objects near the limb and narrow rilles are more demanding.
0 / 100 features observed
Progress is stored only in this browser, on this site. Export a backup before changing devices or clearing browser data. Importing merges observations; existing entries are retained in a conflict.
Features on the real Moon
The LRO photographic mosaic shows the near side, north up. Feature centres are projected onto the lunar disc; dots do not represent their sizes. This reference background reproduces neither today’s phase nor libration.
Photographic background: NASA/Goddard/Arizona State University · Lunar Reconnaissance Orbiter. The near side is extracted for display from the mosaic of both hemispheres. Approximate positions, orthographic projection centred on 0° N / 0° E. Mosaic source
When zoomed in, scroll the map horizontally and vertically. Click a dot to open its fact sheet. The filters below also apply to the map.
Open the LROC QuickMap photographic map ↗ · NASA daily lunar guide ↗
Mission layer: 13 documented near-side sites. Discover missions and far-side sites →
Your log of lunar landscapes
100 features
Copernicus
9.62° N · 20.08° W
Catalogue dimension: 96.1 km
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Kepler
8.12° N · 38.01° W
Catalogue dimension: 29.5 km
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Aristarchus
23.73° N · 47.49° W
Catalogue dimension: 40 km
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Plato
51.62° N · 9.38° W
Catalogue dimension: 100.7 km
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Clavius
58.62° S · 14.73° W
Catalogue dimension: 230.8 km
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Ptolemaeus
9.16° S · 1.84° W
Catalogue dimension: 153.7 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Alphonsus
13.39° S · 2.85° W
Catalogue dimension: 110.5 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Arzachel
18.26° S · 1.93° W
Catalogue dimension: 97 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Eratosthenes
14.47° N · 11.32° W
Catalogue dimension: 58.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Archimedes
29.72° N · 3.99° W
Catalogue dimension: 81 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Aristillus
33.88° N · 1.21° E
Catalogue dimension: 54.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Autolycus
30.68° N · 1.49° E
Catalogue dimension: 38.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Cassini
40.25° N · 4.64° E
Catalogue dimension: 56.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Aristoteles
50.24° N · 17.32° E
Catalogue dimension: 87.6 km
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Eudoxus
44.27° N · 16.23° E
Catalogue dimension: 70.2 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Posidonius
31.88° N · 29.99° E
Catalogue dimension: 95.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Theophilus
11.45° S · 26.28° E
Catalogue dimension: 98.6 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Cyrillus
13.29° S · 24.07° E
Catalogue dimension: 98.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Catharina
17.98° S · 23.55° E
Catalogue dimension: 98.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Picard
14.57° N · 54.72° E
Catalogue dimension: 22.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Proclus
16.09° N · 46.89° E
Catalogue dimension: 26.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Langrenus
8.86° S · 61.04° E
Catalogue dimension: 132 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Petavius
25.39° S · 60.78° E
Catalogue dimension: 184.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Vendelinus
16.46° S · 61.55° E
Catalogue dimension: 141.2 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Furnerius
36.00° S · 60.54° E
Catalogue dimension: 135 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Gassendi
17.55° S · 39.96° W
Catalogue dimension: 111.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Schickard
44.38° S · 55.11° W
Catalogue dimension: 212.2 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Wargentin
49.53° S · 60.44° W
Catalogue dimension: 84.7 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Schiller
51.72° S · 39.78° W
Catalogue dimension: 179.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Bailly
66.82° S · 68.90° W
Catalogue dimension: 300.6 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Grimaldi
5.38° S · 68.36° W
Catalogue dimension: 235 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Riccioli
2.90° S · 74.42° W
Catalogue dimension: 155.7 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Hevelius
2.20° N · 67.46° W
Catalogue dimension: 113.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Cavalerius
5.10° N · 66.93° W
Catalogue dimension: 59.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Reiner
6.92° N · 54.98° W
Catalogue dimension: 29.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Marius
11.90° N · 50.84° W
Catalogue dimension: 40.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Herodotus
23.25° N · 49.84° W
Catalogue dimension: 35.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Guericke
11.57° S · 14.19° W
Catalogue dimension: 60.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Fra Mauro
6.06° S · 16.97° W
Catalogue dimension: 96.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Bonpland
8.38° S · 17.33° W
Catalogue dimension: 59.2 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Parry
7.88° S · 15.78° W
Catalogue dimension: 47.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Alpetragius
16.05° S · 4.51° W
Catalogue dimension: 40 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Herschel
5.69° S · 2.09° W
Catalogue dimension: 39.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Hipparchus
5.36° S · 4.91° E
Catalogue dimension: 143.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Albategnius
11.24° S · 4.01° E
Catalogue dimension: 130.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Purbach
25.51° S · 2.03° W
Catalogue dimension: 115 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Regiomontanus
28.28° S · 1.09° W
Catalogue dimension: 126.6 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Walter
28.04° N · 33.81° W
Catalogue dimension: 1.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Stöfler
41.24° S · 5.93° E
Catalogue dimension: 129.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Maurolycus
41.77° S · 13.92° E
Catalogue dimension: 115.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Maginus
50.03° S · 5.98° W
Catalogue dimension: 155.6 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Moretus
70.63° S · 5.95° W
Catalogue dimension: 114.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Schomberger
76.64° S · 24.69° E
Catalogue dimension: 85.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Newton
76.52° S · 17.44° W
Catalogue dimension: 83.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Longomontanus
49.55° S · 21.88° W
Catalogue dimension: 145.5 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Rheita
37.10° S · 47.17° E
Catalogue dimension: 70.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Janssen
44.96° S · 40.82° E
Catalogue dimension: 200.7 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Fabricius
42.75° S · 41.84° E
Catalogue dimension: 78.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Metius
40.42° S · 43.37° E
Catalogue dimension: 83.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Bürg
45.07° N · 28.21° E
Catalogue dimension: 41 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Lacus Mortis
45.13° N · 27.32° E
Catalogue dimension: 158.8 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Atlas
46.74° N · 44.38° E
Catalogue dimension: 88.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Hercules
46.82° N · 39.21° E
Catalogue dimension: 68.3 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Endymion
53.61° N · 56.48° E
Catalogue dimension: 122.1 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Cleomedes
27.60° N · 55.50° E
Catalogue dimension: 130.8 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Geminus
34.42° N · 56.66° E
Catalogue dimension: 82 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Messala
39.31° N · 60.06° E
Catalogue dimension: 122.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Franklin
38.73° N · 47.64° E
Catalogue dimension: 55.9 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Cepheus
40.68° N · 45.78° E
Catalogue dimension: 39.4 km
Look for the rim and shadows near the terminator. Return under different lighting to compare the floor and terrain.
Mare Imbrium
34.72° N · 14.91° W
Catalogue dimension: 1145.5 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Oceanus Procellarum
20.67° N · 56.68° W
Catalogue dimension: 2592.2 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Serenitatis
27.29° N · 18.36° E
Catalogue dimension: 674.3 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Tranquillitatis
8.35° N · 30.83° E
Catalogue dimension: 875.7 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Crisium
16.18° N · 59.10° E
Catalogue dimension: 555.9 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Fecunditatis
7.83° S · 53.67° E
Catalogue dimension: 840.4 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Nectaris
15.19° S · 34.60° E
Catalogue dimension: 339.4 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Nubium
20.59° S · 17.29° W
Catalogue dimension: 714.5 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Humorum
24.48° S · 38.57° W
Catalogue dimension: 419.7 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Frigoris
57.59° N · 0.01° W
Catalogue dimension: 1446.4 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Vaporum
13.20° N · 4.09° E
Catalogue dimension: 242.5 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Cognitum
10.53° S · 22.31° W
Catalogue dimension: 350 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Mare Insularum
7.79° N · 30.64° W
Catalogue dimension: 511.9 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Sinus Iridum
45.01° N · 31.67° W
Catalogue dimension: 249.3 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Sinus Medii
1.63° N · 1.03° E
Catalogue dimension: 286.7 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Sinus Roris
50.26° N · 50.86° W
Catalogue dimension: 195 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Palus Putredinis
27.36° N · 0.00° E
Catalogue dimension: 180.5 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Lacus Somniorum
37.56° N · 30.80° E
Catalogue dimension: 424.8 km
Compare the outline of this dark plain with the surrounding terrain. A mostly illuminated Moon helps identify large regions, even when shadows are less pronounced.
Montes Apenninus
19.87° N · 0.03° E
Catalogue dimension: 599.7 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Alpes
48.36° N · 0.58° W
Catalogue dimension: 334.5 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Caucasus
37.52° N · 9.93° E
Catalogue dimension: 443.5 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Carpatus
14.57° N · 23.62° W
Catalogue dimension: 333.6 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Jura
47.49° N · 36.11° W
Catalogue dimension: 420.8 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Haemus
17.11° N · 12.03° E
Catalogue dimension: 384.7 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Montes Riphaeus
7.48° S · 27.60° W
Catalogue dimension: 190.1 km
Follow the shadows of the peaks when the light is low. Compare the range with the neighbouring plains.
Vallis Alpes
49.21° N · 3.63° E
Catalogue dimension: 155.4 km
Find the valley’s edges under low-angle lighting; fine details require good conditions.
Rupes Recta
21.67° S · 7.70° W
Catalogue dimension: 115.9 km
Look for the shadow line or bright line, depending on the direction of illumination. A feature’s appearance can change greatly between lunar morning and evening.
Rupes Altai
24.32° S · 23.12° E
Catalogue dimension: 545.2 km
Look for the shadow line or bright line, depending on the direction of illumination. A feature’s appearance can change greatly between lunar morning and evening.
Rima Hyginus
7.62° N · 6.77° E
Catalogue dimension: 204 km
This rille requires steady air and low-angle lighting. First locate the large features nearby.
Rima Ariadaeus
6.48° N · 13.44° E
Catalogue dimension: 247.4 km
This rille requires steady air and low-angle lighting. First locate the large features nearby.
Start with the seven landmarks from volume II
Understanding the labels
Names follow the official nomenclature. Latitude is positive northwards; longitude is expressed east or west of the central meridian. Dimensions come from the catalogue: they do not indicate the terrain’s height and do not represent a crater diameter for other feature types.
This selection covers the near side. Actual visibility depends on phase, libration, the instrument and atmospheric turbulence. Near the terminator, shadows often help reveal terrain; more direct lighting better reveals some contrasts and rays. The advice is general and does not predict visibility.
Data: Gazetteer of Planetary Nomenclature, IAU/USGS, extracted on 18 October 2026, LOLA 2011 reference system. Coordinates are displayed to two decimal places, dimensions rounded to one tenth of a kilometre. Each fact sheet links to its official source.
From book to sky
Adapted from the “La Lune” chapter of Steve Cimolino’s volume II, Comprendre comment explorer le ciel, manuscript dated 17 October 2026. The plates come from the book and have been resized for the web.
Photographs of both sides: NASA/Goddard/Arizona State University (LRO), Synchronous rotation. Annotated map: NASA photograph, Moon Phases, book annotations and approximate markers. Phase diagram: educational plate from volume II. NASA image use guidelines.
To explore further: NASA observing advice · Craters and maria · Lunar eclipses.
Discover volume II →