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|---|---|
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An annular solar eclipse occurred at the Moon's descending node of orbit on Saturday, August 28, 1802, with a magnitude of 0.9367. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring only about 3 hours after apogee (on August 28, 1802, at 4:30 UTC), the Moon's apparent diameter was smaller.[1]
The path of annularity was visible from parts of modern-day Greenland, Svalbard, Russia, Mongolia, China, and the Ryukyu Islands. A partial solar eclipse was also visible for parts of Greenland, northern Canada, Europe, Asia, and western Alaska.[2]
Eclipse details
Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.[3]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1802 August 28 at 04:29:10.1 UTC |
| First Umbral External Contact | 1802 August 28 at 05:51:01.7 UTC |
| First Central Line | 1802 August 28 at 05:54:53.7 UTC |
| First Umbral Internal Contact | 1802 August 28 at 05:58:52.8 UTC |
| Equatorial Conjunction | 1802 August 28 at 06:26:04.0 UTC |
| Ecliptic Conjunction | 1802 August 28 at 07:02:59.7 UTC |
| Greatest Duration | 1802 August 28 at 07:06:10.3 UTC |
| Greatest Eclipse | 1802 August 28 at 07:11:59.6 UTC |
| Last Umbral Internal Contact | 1802 August 28 at 08:25:35.5 UTC |
| Last Central Line | 1802 August 28 at 08:29:33.9 UTC |
| Last Umbral External Contact | 1802 August 28 at 08:33:25.4 UTC |
| Last Penumbral External Contact | 1802 August 28 at 09:55:07.2 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.93666 |
| Eclipse Obscuration | 0.87733 |
| Gamma | 0.75685 |
| Sun Right Ascension | 10h24m22.1s |
| Sun Declination | +09°58'43.3" |
| Sun Semi-Diameter | 15'50.6" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 10h25m37.4s |
| Moon Declination | +10°34'58.3" |
| Moon Semi-Diameter | 14'41.9" |
| Moon Equatorial Horizontal Parallax | 0°53'56.6" |
| ΔT | 12.6 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
| August 28 Descending node (new moon) | September 11 Ascending node (full moon) |
|---|---|
| Annular solar eclipse Solar Saros 122 | Partial lunar eclipse Lunar Saros 134 |
Related eclipses
Eclipses in 1802
- A total solar eclipse on March 4.
- A partial lunar eclipse on March 19.
- An annular solar eclipse on August 28.
- A partial lunar eclipse on September 11.
Metonic
- Preceded by: Solar eclipse of November 8, 1798
- Followed by: Solar eclipse of June 16, 1806
Tzolkinex
- Preceded by: Solar eclipse of July 16, 1795
- Followed by: Solar eclipse of October 9, 1809
Half-Saros
- Preceded by: Lunar eclipse of August 21, 1793
- Followed by: Lunar eclipse of September 2, 1811
Tritos
- Preceded by: Solar eclipse of September 27, 1791
- Followed by: Solar eclipse of July 27, 1813
Solar Saros 122
- Preceded by: Solar eclipse of August 16, 1784
- Followed by: Solar eclipse of September 7, 1820
Inex
- Preceded by: Solar eclipse of September 16, 1773
- Followed by: Solar eclipse of August 7, 1831
Triad
- Preceded by: Solar eclipse of October 27, 1715
- Followed by: Solar eclipse of June 28, 1889
Solar eclipses of 1801–1805
The partial solar eclipses on April 13, 1801 and October 7, 1801 occur in the previous lunar year eclipse set, and the solar eclipses on January 1, 1805 (partial); June 26, 1805 (partial); and December 21, 1805 (annular) occur in the next lunar year eclipse set.
| Solar eclipse series sets from 1801 to 1805 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 107 | March 14, 1801 Partial | −1.4434 | 112 | September 8, 1801 Partial | 1.4657 | |
| 117 | March 4, 1802 Total | −0.6943 | 122 | August 28, 1802 Annular | 0.7569 | |
| 127 | February 21, 1803 Total | −0.0075 | 132 | August 17, 1803 Annular | −0.0048 | |
| 137 | February 11, 1804 Hybrid | 0.7053 | 142 | August 5, 1804 Total | −0.7622 | |
| 147 | January 30, 1805 Partial | 1.4651 | 152 | July 26, 1805 Partial | −1.4571 | |
Metonic series
All eclipses in this table occur at the Moon's descending node.
| 24 eclipse events between August 28, 1802, and August 28, 1859 | ||||
|---|---|---|---|---|
| August 27–28 | June 16 | April 3–4 | January 20–21 | November 9 |
| 122 | 124 | 126 | 128 | 130 |
August 28, 1802 | June 16, 1806 | April 4, 1810 | January 21, 1814 | November 9, 1817 |
| 132 | 134 | 136 | 138 | 140 |
August 27, 1821 | June 16, 1825 | April 3, 1829 | January 20, 1833 | November 9, 1836 |
| 142 | 144 | 146 | 148 | 150 |
August 27, 1840 | June 16, 1844 | April 3, 1848 | January 21, 1852 | November 9, 1855 |
| 152 | ||||
August 28, 1859 | ||||
See also
References
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 28 September 2024.
- ^ "Solar eclipse of August 28, 1802". NASA. Retrieved June 15, 2012.
- ^ "Annular Solar Eclipse of 1802 Aug 28". EclipseWise.com. Retrieved 28 September 2024.
