Occult occultations, computed
Location

You can also tap anywhere on the map, or a city dot.

The Moon occults Mars — 17 August 2028

Lunar occultation of the planet Mars · Thursday 17 August 2028 · World

Watch from (UTC)
—
0 of 44 listed cities see it
Mars hidden for
up to 0 min

The Moon hides Mars, but from no large city — the map shows where.

Closest approach 18:41 UTC (geocentric, 0.35° centre to centre) · Moon 26.7 days old, 10% lit, 37° from the Sun

Where it can be seen

Mexico City, MX: misses — Mars passes 21.0′ from the limb Tokyo, JP: misses — Mars passes 30.0′ from the limb New York City, US: misses — Mars passes 45.9′ from the limb Lima, PE: misses — Mars passes 5.2′ from the limb Bogotá, CO: misses — Mars passes 21.3′ from the limb Harbin, CN: misses — Mars passes 41.0′ from the limb Los Angeles, US: misses — Mars passes 22.5′ from the limb Yokohama, JP: misses — Mars passes 29.8′ from the limb Caracas, VE: misses — Mars passes 28.9′ from the limb Toronto, CA: misses — Mars passes 45.4′ from the limb Quito, EC: misses — Mars passes 15.3′ from the limb Brooklyn, US: misses — Mars passes 45.8′ from the limb Guayaquil, EC: misses — Mars passes 13.0′ from the limb Chicago, US: misses — Mars passes 41.4′ from the limb Cali, CO: misses — Mars passes 19.3′ from the limb Queens, US: misses — Mars passes 45.9′ from the limb Houston, US: misses — Mars passes 30.4′ from the limb Santo Domingo, DO: misses — Mars passes 33.8′ from the limb Havana, CU: misses — Mars passes 32.0′ from the limb Medellín, CO: misses — Mars passes 22.1′ from the limb Sapporo, JP: misses — Mars passes 34.9′ from the limb Tijuana, MX: misses — Mars passes 21.8′ from the limb Iztapalapa, MX: misses — Mars passes 21.0′ from the limb Montréal, CA: misses — Mars passes 48.3′ from the limb Maracaibo, VE: misses — Mars passes 27.2′ from the limb Puebla, MX: misses — Mars passes 21.2′ from the limb Phoenix, US: misses — Mars passes 24.9′ from the limb Ecatepec de Morelos, MX: misses — Mars passes 21.2′ from the limb Valencia, VE: misses — Mars passes 28.2′ from the limb Santiago de Querétaro, MX: misses — Mars passes 21.2′ from the limb León de los Aldama, MX: misses — Mars passes 20.9′ from the limb Philadelphia, US: misses — Mars passes 45.1′ from the limb Auckland, NZ: misses — Mars passes 12.5′ from the limb Kawasaki, JP: misses — Mars passes 29.8′ from the limb San Antonio, US: misses — Mars passes 28.6′ from the limb Ciudad Juárez, MX: misses — Mars passes 26.3′ from the limb Manhattan, US: misses — Mars passes 45.9′ from the limb Zapopan, MX: misses — Mars passes 19.7′ from the limb San Diego, US: misses — Mars passes 21.9′ from the limb Guadalajara, MX: misses — Mars passes 19.6′ from the limb The Bronx, US: misses — Mars passes 46.0′ from the limb Dallas, US: misses — Mars passes 31.8′ from the limb Saitama, JP: misses — Mars passes 30.1′ from the limb Calgary, CA: misses — Mars passes 37.4′ from the limb Mexico City, MX Tokyo, JP New York City, US Lima, PE
sees the occultation after sunset graze limit city sees it near miss

The gold line is the north limit: along it Mars grazes the Moon's northern edge. North of the line it is a near miss — from Lima, PE Mars passes just 5.2′ outside the limb — and a graze seen from right on the line, Mars blinking in and out behind lunar mountains, is the finest view of all. The solid line is traced against the real lunar limb — LRO LOLA terrain, the mountains and valleys that are on the edge for this libration — and sits -1.7 to +0.1 km from the mean-sphere line (dotted).

The violet shading is where the Sun has set by the time of the event, so the reappearance happens in a darkening sky.

Tap the map to set your location; pinch it to zoom in. Take the graze line with you: KML for Google Earth / Maps · GPX for a phone GPS app.

At the Moon's edge

Mars's path across the Moon from your location — north up, east to the left as in binoculars. Times here are computed in your browser from the same ephemeris as the table, to the same ±2 s. Drag the slider to move it along its track.

Advanced · graze profile against the real lunar limb

For graze chasers. The lunar limb as it really is for your libration — LRO LOLA terrain, in km above and below the mean sphere — with Mars's track drawn across it six minutes either side of each contact. Where the track dips below the terrain, Mars is hidden; near a graze it blinks behind peaks.

City by city

Times are against the real lunar limb (LRO LOLA terrain at each city's own libration). Disappears is the moment Mars is fully hidden (its disc takes from the earlier time to slide in); reappears is when the first sliver returns. Where to look is the Moon's height above the horizon (0° is the horizon, 90° straight up) and compass direction at that moment, and whether the Sun is still up.

CityMars disappears (UTC)reappears (UTC)hiddenWhere to look
Lima, PEmisses — Mars passes 5.2′ from the limb at 20:181° up (low) in the WNW · daylight, Sun +37°
Mexico City, MXmisses — Mars passes 21.0′ from the limb at 19:3941° up in the WNW · daylight, Sun +74°
New York City, USmisses — Mars passes 45.9′ from the limb at 19:2626° up in the W · daylight, Sun +48°
Tokyo, JPmisses — Mars passes 30.0′ from the limb at 17:172° up (low) in the ENE · dark sky
All 40 other cities
CityMars disappears (UTC)reappears (UTC)hiddenWhere to look
Auckland, NZmisses — Mars passes 12.5′ from the limb at 17:385° up (low) in the NE · dark sky
Bogotá, COmisses — Mars passes 21.3′ from the limb at 20:096° up (low) in the WNW · daylight, Sun +43°
Brooklyn, USmisses — Mars passes 45.8′ from the limb at 19:2626° up in the W · daylight, Sun +48°
Calgary, CAmisses — Mars passes 37.4′ from the limb at 18:4156° up in the SW · daylight, Sun +50°
Cali, COmisses — Mars passes 19.3′ from the limb at 20:108° up (low) in the WNW · daylight, Sun +44°
Caracas, VEmisses — Mars passes 28.9′ from the limb at 20:043° up (low) in the WNW · daylight, Sun +38°
Chicago, USmisses — Mars passes 41.4′ from the limb at 19:1738° up in the W · daylight, Sun +56°
Ciudad Juárez, MXmisses — Mars passes 26.3′ from the limb at 19:1354° up in the W · daylight, Sun +71°
Dallas, USmisses — Mars passes 31.8′ from the limb at 19:2244° up in the W · daylight, Sun +67°
Ecatepec de Morelos, MXmisses — Mars passes 21.2′ from the limb at 19:3941° up in the WNW · daylight, Sun +74°
Guadalajara, MXmisses — Mars passes 19.6′ from the limb at 19:3347° up in the W · daylight, Sun +78°
Guayaquil, ECmisses — Mars passes 13.0′ from the limb at 20:138° up (low) in the WNW · daylight, Sun +45°
Harbin, CNmisses — Mars passes 41.0′ from the limb at 17:300° up (low) in the ENE · dark sky
Havana, CUmisses — Mars passes 32.0′ from the limb at 19:4725° up in the WNW · daylight, Sun +57°
Houston, USmisses — Mars passes 30.4′ from the limb at 19:2842° up in the W · daylight, Sun +68°
Iztapalapa, MXmisses — Mars passes 21.0′ from the limb at 19:3941° up in the WNW · daylight, Sun +74°
Kawasaki, JPmisses — Mars passes 29.8′ from the limb at 17:172° up (low) in the ENE · dark sky
León de los Aldama, MXmisses — Mars passes 20.9′ from the limb at 19:3445° up in the W · daylight, Sun +77°
Los Angeles, USmisses — Mars passes 22.5′ from the limb at 18:5367° up (high) in the WSW · daylight, Sun +65°
Manhattan, USmisses — Mars passes 45.9′ from the limb at 19:2626° up in the W · daylight, Sun +48°
Maracaibo, VEmisses — Mars passes 27.2′ from the limb at 20:047° up (low) in the WNW · daylight, Sun +43°
Medellín, COmisses — Mars passes 22.1′ from the limb at 20:079° up (low) in the WNW · daylight, Sun +45°
Montréal, CAmisses — Mars passes 48.3′ from the limb at 19:1927° up in the W · daylight, Sun +46°
Philadelphia, USmisses — Mars passes 45.1′ from the limb at 19:2626° up in the W · daylight, Sun +49°
Phoenix, USmisses — Mars passes 24.9′ from the limb at 19:0361° up (high) in the WSW · daylight, Sun +69°
Puebla, MXmisses — Mars passes 21.2′ from the limb at 19:4140° up in the WNW · daylight, Sun +73°
Queens, USmisses — Mars passes 45.9′ from the limb at 19:2625° up in the W · daylight, Sun +48°
Quito, ECmisses — Mars passes 15.3′ from the limb at 20:128° up (low) in the WNW · daylight, Sun +45°
Saitama, JPmisses — Mars passes 30.1′ from the limb at 17:182° up (low) in the ENE · dark sky
San Antonio, USmisses — Mars passes 28.6′ from the limb at 19:2545° up in the W · daylight, Sun +70°
San Diego, USmisses — Mars passes 21.9′ from the limb at 18:5766° up (high) in the WSW · daylight, Sun +67°
Santiago de Querétaro, MXmisses — Mars passes 21.2′ from the limb at 19:3643° up in the WNW · daylight, Sun +76°
Santo Domingo, DOmisses — Mars passes 33.8′ from the limb at 19:5610° up (low) in the WNW · daylight, Sun +43°
Sapporo, JPmisses — Mars passes 34.9′ from the limb at 17:237° up (low) in the ENE · dark sky
The Bronx, USmisses — Mars passes 46.0′ from the limb at 19:2626° up in the W · daylight, Sun +48°
Tijuana, MXmisses — Mars passes 21.8′ from the limb at 18:5766° up (high) in the WSW · daylight, Sun +67°
Toronto, CAmisses — Mars passes 45.4′ from the limb at 19:1931° up in the W · daylight, Sun +50°
Valencia, VEmisses — Mars passes 28.2′ from the limb at 20:044° up (low) in the WNW · daylight, Sun +39°
Yokohama, JPmisses — Mars passes 29.8′ from the limb at 17:172° up (low) in the ENE · dark sky
Zapopan, MXmisses — Mars passes 19.7′ from the limb at 19:3347° up in the W · daylight, Sun +78°

How to watch

Method & accuracy

Positions from the JPL DE431 ephemeris (Skyfield), ΔT = 69.1 s. The city table's contact times and the solid limit line use the real lunar limb — the silhouette of LRO LOLA terrain (LDEM_64, ~0.5 km) at each observer's own libration — so they carry the mountains and valleys that a mean sphere misses (up to a few seconds at ordinary contacts, tens of seconds near a graze). The any-location solver in your browser and the shaded region still use the mean sphere of 1737.4 km (±2 s). Mars's own disc (4″ across) is included: partial contacts are the from/to times. The numbers behind this page: mars-2028-08-17.json. Generated 2026-09-14.