Grazing Penumbral Eclipses

Grazing Penumbral Eclipses

For all central eclipses, two situations can exist at the time of maximum eclipse. If the center of the moon's shadow passes within 0.42 earth radii of the earth's center, a complete outline of the penumbra will appear on the earth's surface. If the distance is greater than 0.47 earth radii, part of the penumbra will extend beyond the earth's limb. Between these limits, the actual situation depends on the size of the penumbra, the minimum approach to the center of the earth, the direction of the shadow, and the apparent flattening of the earth.

The 17 eclipses displayed here have the edge of the penumbra passing within 0.0014 earth radii of the earth's limb, and are sorted according to increased distance from the center of the earth at maximum eclipse. The impact distance is the distance from the limb of the earth to the edge of the penumbra when the penumbra is fully outlined on the earth's surface. The miss distance is the distance from the limb of the earth to the edge of the penumbra when the penumbra extends off the surface of the earth.

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Total Solar Eclipse: 1589 Feb 15

Impact Distance = 0.00129 (8.2 km)

Total Solar Eclipse: 588 May 31

Impact Distance = 0.00127 (8.1 km)

Total Solar Eclipse: 729 Oct 27

Impact Distance = 0.00103 (6.6 km)

Annular Solar Eclipse: -385 Sep 14

Impact Distance = 0.00088 (5.6 km)

Annular-Total Solar Eclipse: 1545 Dec 04

Impact Distance = 0.00060 (3.8 km)

Annular-Total Solar Eclipse: -1579 Nov 13

Impact Distance = 0.00032 (2.0 km)

Total Solar Eclipse: 798 Aug 16

Impact Distance = 0.00027 (1.7 km)

Annular Solar Eclipse: 1572 Jul 10

Impact Distance = 0.00024 (1.5 km)

Annular Solar Eclipse: 2668 Aug 29

Impact Distance = 0.00010 (0.6 km)

Annular Solar Eclipse: 2110 Feb 18

Miss Distance = 0.00030 (1.9 km)

Total Solar Eclipse: 301 Apr 25

Miss Distance = 0.00038 (2.4 km)

Annular Solar Eclipse: 1730 Jul 15

Miss Distance = 0.00039 (2.5 km)

Total Solar Eclipse: -1388 Aug 04

Miss Distance = 0.00064 (4.1 km)

Total Solar Eclipse: 424 Mar 16

Miss Distance = 0.00120 (7.7 km)

Total Solar Eclipse: -842 Apr 02

Miss Distance = 0.00123 (7.8 km)

Annular Solar Eclipse: -744 Jan 01

Miss Distance = 0.00129 (8.2 km)

Annular Solar Eclipse: 265 Sep 26

Miss Distance = 0.00136 (8.7 km)