{"version":1,"generatedAt":"2026-10-28T10:38:56.207Z","kind":"solar-eclipse","type":"partial","name":"Partial solar eclipse, 2025-09-21","greatestEclipse":{"at":"2025-09-21T19:41:31.274Z","lat":-61.1,"lon":153.5},"gamma":-1.0647,"magnitude":0.8558,"sunAltitudeAtGreatest":0,"centralDurationSeconds":null,"visibility":{"timeZone":"UTC","bands":[{"latitude":60,"verdict":"none","summary":"Not seen: the Moon’s shadow misses this latitude while the Sun is up","seenFromLongitudes":[],"deepest":null},{"latitude":45,"verdict":"none","summary":"Not seen: the Moon’s shadow misses this latitude while the Sun is up","seenFromLongitudes":[],"deepest":null},{"latitude":30,"verdict":"none","summary":"Not seen: the Moon’s shadow misses this latitude while the Sun is up","seenFromLongitudes":[],"deepest":null},{"latitude":15,"verdict":"none","summary":"Not seen: the Moon’s shadow misses this latitude while the Sun is up","seenFromLongitudes":[],"deepest":null},{"latitude":0,"verdict":"none","summary":"Not seen: the Moon’s shadow misses this latitude while the Sun is up","seenFromLongitudes":[],"deepest":null},{"latitude":-15,"verdict":"partial","summary":"Partial: at most 21% of the Sun hidden, at 174°E, the Sun 0° up","seenFromLongitudes":[{"from":162,"to":-141}],"deepest":{"at":"2025-09-21T18:18:13.979Z","lon":174.2,"magnitude":0.332,"obscuration":0.215,"sunAltitude":0,"centralSeconds":null}},{"latitude":-30,"verdict":"partial","summary":"Partial: at most 51% of the Sun hidden, at 169°E, the Sun 1° up","seenFromLongitudes":[{"from":154,"to":-128}],"deepest":{"at":"2025-09-21T18:41:49.749Z","lon":168.6,"magnitude":0.611,"obscuration":0.508,"sunAltitude":1,"centralSeconds":null}},{"latitude":-45,"verdict":"partial","summary":"Partial: at most 72% of the Sun hidden, at 162°E, the Sun 0° up","seenFromLongitudes":[{"from":146,"to":-112}],"deepest":{"at":"2025-09-21T19:09:29.643Z","lon":161.8,"magnitude":0.79,"obscuration":0.719,"sunAltitude":0,"centralSeconds":null}}]},"links":{"page":"https://www.whatthestar.com/eclipses/2025-09-21","map":"https://www.whatthestar.com/explore?ra=11.943&dec=0.37&fov=40&t=2025-09-21T19%3A42%3A00.000Z"},"sources":[{"name":"F. Espenak and J. Meeus, NASA Five Millennium Canon of Solar and Lunar Eclipses, which the tests hold these to","url":"https://eclipse.gsfc.nasa.gov/eclipse.html"},{"name":"J. Meeus, Astronomical Algorithms, ch. 25 (the Sun) and ch. 47 (the Moon), as the map draws them","url":"https://www.whatthestar.com/credits#method-moon"},{"name":"Danjon’s rule for the Earth’s shadow, as NASA’s lunar eclipse catalogue applies it (NASA/TP-2009-214172, §1.3)","url":"https://eclipse.gsfc.nasa.gov/LEcat5/LEcatkey.html"}],"cities":[{"name":"Palmerston North, New Zealand","lat":-40.35,"lon":175.61,"timeZone":"Pacific/Auckland","verdict":"partial","summary":"65% of the Sun hidden, the Sun 10° up","start":"2025-09-21T17:57:26.915Z","peak":"2025-09-21T19:01:53.634Z","end":"2025-09-21T20:12:54.103Z","centralSeconds":null,"magnitude":0.732,"obscuration":0.65,"altitudeAtPeak":10,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.939&dec=0.4&fov=8&t=2025-09-21T17%3A47Z&sel=body%3ASun&at=palmerston-north-new-zealand"},{"name":"Christchurch, New Zealand","lat":-43.53,"lon":172.64,"timeZone":"Pacific/Auckland","verdict":"partial","summary":"69% of the Sun hidden, the Sun 8° up","start":"2025-09-21T18:03:10.213Z","peak":"2025-09-21T19:07:38.807Z","end":"2025-09-21T20:18:20.526Z","centralSeconds":null,"magnitude":0.767,"obscuration":0.692,"altitudeAtPeak":8,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.939&dec=0.4&fov=8&t=2025-09-21T17%3A53Z&sel=body%3ASun&at=christchurch-new-zealand"},{"name":"Auckland, New Zealand","lat":-36.85,"lon":174.76,"timeZone":"Pacific/Auckland","verdict":"partial","summary":"61% of the Sun hidden, the Sun 8° up","start":"2025-09-21T17:51:54.066Z","peak":"2025-09-21T18:54:45.160Z","end":"2025-09-21T20:04:11.879Z","centralSeconds":null,"magnitude":0.697,"obscuration":0.609,"altitudeAtPeak":8,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.4&fov=8&t=2025-09-21T17%3A41Z&sel=body%3ASun&at=auckland-new-zealand"},{"name":"Nuku'alofa, Tonga","lat":-21.14,"lon":-175.2,"timeZone":"Pacific/Tongatapu","verdict":"partial","summary":"32% of the Sun hidden, the Sun 12° up","start":"2025-09-21T17:32:10.491Z","peak":"2025-09-21T18:27:56.897Z","end":"2025-09-21T19:29:46.116Z","centralSeconds":null,"magnitude":0.437,"obscuration":0.318,"altitudeAtPeak":12,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.41&fov=8&t=2025-09-21T17%3A22Z&sel=body%3ASun&at=nuku-alofa-tonga"},{"name":"Suva, Fiji","lat":-18.14,"lon":178.44,"timeZone":"Pacific/Fiji","verdict":"partial","summary":"28% of the Sun hidden, the Sun 5° up","start":"2025-09-21T17:31:16.567Z","peak":"2025-09-21T18:22:24.536Z","end":"2025-09-21T19:18:38.130Z","centralSeconds":null,"magnitude":0.395,"obscuration":0.275,"altitudeAtPeak":5,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.41&fov=8&t=2025-09-21T17%3A21Z&sel=body%3ASun&at=suva-fiji"},{"name":"Nouméa, New Caledonia","lat":-22.28,"lon":166.46,"timeZone":"Pacific/Noumea","verdict":"partial","summary":"27% of the Sun hidden, the Sun 0° up","start":"2025-09-21T17:38:29.868Z","peak":"2025-09-21T18:49:31.274Z","end":"2025-09-21T19:26:07.368Z","centralSeconds":null,"magnitude":0.392,"obscuration":0.273,"altitudeAtPeak":0,"upAtStart":false,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.4&fov=8&t=2025-09-21T17%3A28Z&sel=body%3ASun&at=noumea-new-caledonia"},{"name":"Avarua (Rarotonga), Cook Islands","lat":-21.21,"lon":-159.78,"timeZone":"Pacific/Rarotonga","verdict":"partial","summary":"23% of the Sun hidden, the Sun 28° up","start":"2025-09-21T17:37:35.566Z","peak":"2025-09-21T18:34:41.660Z","end":"2025-09-21T19:37:47.754Z","centralSeconds":null,"magnitude":0.346,"obscuration":0.228,"altitudeAtPeak":28,"upAtStart":true,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.4&fov=8&t=2025-09-21T17%3A27Z&sel=body%3ASun&at=avarua-rarotonga-cook-islands"},{"name":"Apia, Samoa","lat":-13.83,"lon":-171.76,"timeZone":"Pacific/Apia","verdict":"partial","summary":"17% of the Sun hidden, the Sun 14° up","start":"2025-09-21T17:29:25.774Z","peak":"2025-09-21T18:16:45.930Z","end":"2025-09-21T19:08:37.024Z","centralSeconds":null,"magnitude":0.282,"obscuration":0.169,"altitudeAtPeak":14,"upAtStart":true,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.937&dec=0.41&fov=8&t=2025-09-21T17%3A19Z&sel=body%3ASun&at=apia-samoa"},{"name":"Papeete, French Polynesia","lat":-17.54,"lon":-149.57,"timeZone":"Pacific/Tahiti","verdict":"partial","summary":"9% of the Sun hidden, the Sun 38° up","start":"2025-09-21T17:48:42.469Z","peak":"2025-09-21T18:34:38.250Z","end":"2025-09-21T19:24:15.281Z","centralSeconds":null,"magnitude":0.176,"obscuration":0.085,"altitudeAtPeak":38,"upAtStart":true,"upAtEnd":true,"map":"https://www.whatthestar.com/explore?ra=11.938&dec=0.4&fov=8&t=2025-09-21T17%3A38Z&sel=body%3ASun&at=papeete-french-polynesia"}],"bestCity":{"name":"Palmerston North, New Zealand","before":"https://www.whatthestar.com/explore?ra=11.939&dec=0.4&fov=8&t=2025-09-21T17%3A47Z&sel=body%3ASun&at=palmerston-north-new-zealand","moment":"https://www.whatthestar.com/explore?ra=11.942&dec=0.38&fov=8&t=2025-09-21T19%3A01Z&sel=body%3ASun&at=palmerston-north-new-zealand"}}