Total Solar Eclipse in Cancer

Eclipses happen when the Sun, Moon, and Earth line up closely while the Moon is near one of its orbital nodes. The Moon’s shadow has two parts: the umbra (where the Sun is fully blocked) and the penumbra (where it is only partly covered). When the umbra reaches Earth’s surface, it sweeps a narrow path; observers within that path experience totality. Outside it, people in the penumbra see a partial eclipse. At a given location on the path, the event unfolds as long partial phases before and after a brief total phase. Just before and after totality, points of sunlight can sparkle along the Moon’s edge (Baily’s beads) and a brief “diamond ring” effect may appear. Totality typically lasts only a few minutes and depends on the exact alignment and location.

Seeing it Direct viewing of the Sun requires proper certified eye protection at all times except during the brief interval of totality when—and only where—the Sun is completely covered. Ordinary sunglasses are not safe. Use ISO 12312-2 certified eclipse glasses or handheld solar viewers for the partial phases. For binoculars, telescopes, and cameras, use a secure front-mounted solar filter; never look through unfiltered optics, and do not rely on eclipse glasses as a filter on optical devices. Remove your viewer only when the Sun is fully obscured, and put it back on immediately when any bright crescent of sunlight reappears. Pinhole projectors and other indirect methods are safe for the partial phases. Totality is visible only within a narrow path across Earth; outside that path, the eclipse will be partial. Visibility also depends on clear skies and the Sun being above your local horizon.