| Annular eclipse | |
 Map | |
| Gamma | 0.8208 |
|---|---|
| Magnitude | 0.9421 |
| Maximum eclipse | |
| Duration | 265 s (4 min 25 s) |
| Coordinates | 75°00′N169°06′W / 75°N 169.1°W /75; -169.1 |
| Max. width of band | 377 km (234 mi) |
| Times (UTC) | |
| Greatest eclipse | 1:50:26 |
| References | |
| Saros | 128 (62 of 73) |
| Catalog # (SE5000) | 9697 |
An annularsolar eclipse will occur at the Moon'sdescending node of orbit between Sunday, July 2 and Monday, July 3, 2084,[1] with amagnitude of 0.9421. Asolar eclipse occurs when theMoon passes betweenEarth and theSun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon'sapparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like anannulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 10 minutes afterapogee (on July 3, 2084, at 1:40 UTC), the Moon's apparent diameter will be near its minimum.[2] Thus, apogee did occur slightly before the peak of this eclipse.
The path of annularity will be visible from parts ofRussia (inEuropean Russia north-east ofMoscow, passing throughYaroslavl,Vologda andSyktyvkar),Alaska, westernCanada,Washington,Oregon,Idaho, northeasternCalifornia,Nevada,Utah, andWyoming. A partial solar eclipse will also be visible for parts ofScandinavia,East Asia,Russia,Hawaii, and westernNorth America.
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 | 2084 July 2 at 23:12:22.5 UTC |
| First Umbral External Contact | 2084 July 3 at 00:39:09.2 UTC |
| First Central Line | 2084 July 3 at 00:43:07.9 UTC |
| First Umbral Internal Contact | 2084 July 3 at 00:47:16.7 UTC |
| Equatorial Conjunction | 2084 July 3 at 01:31:41.2 UTC |
| Ecliptic Conjunction | 2084 July 3 at 01:40:42.9 UTC |
| Greatest Duration | 2084 July 3 at 01:47:23.5 UTC |
| Greatest Eclipse | 2084 July 3 at 01:50:25.9 UTC |
| Last Umbral Internal Contact | 2084 July 3 at 02:53:47.7 UTC |
| Last Central Line | 2084 July 3 at 02:57:56.2 UTC |
| Last Umbral External Contact | 2084 July 3 at 03:01:54.7 UTC |
| Last Penumbral External Contact | 2084 July 3 at 04:28:37.1 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.94207 |
| Eclipse Obscuration | 0.88750 |
| Gamma | 0.82080 |
| Sun Right Ascension | 06h52m43.5s |
| Sun Declination | +22°52'33.4" |
| Sun Semi-Diameter | 15'43.9" |
| Sun Equatorial Horizontal Parallax | 08.6" |
| Moon Right Ascension | 06h53m20.0s |
| Moon Declination | +23°35'54.8" |
| Moon Semi-Diameter | 14'41.9" |
| Moon Equatorial Horizontal Parallax | 0°53'56.6" |
| ΔT | 109.2 s |
This eclipse is part of aneclipse 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 afortnight.
| July 3 Descending node (new moon) | July 17 Ascending node (full moon) |
|---|---|
| |
| Annular solar eclipse Solar Saros 128 | Partial lunar eclipse Lunar Saros 140 |
This eclipse is a member of asemester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternatingnodes of the Moon's orbit.[4]
The partial solar eclipses onFebruary 16, 2083 andAugust 13, 2083 occur in the previous lunar year eclipse set, and the partial solar eclipses onMay 2, 2087 andOctober 26, 2087 occur in the next lunar year eclipse set.
| Solar eclipse series sets from 2083 to 2087 | ||||||
|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 118 | July 15, 2083 Partial | 1.5465 | 123 | January 7, 2084 Partial | −1.0715 | |
| 128 | July 3, 2084 Annular | 0.8208 | 133 | December 27, 2084 Total | −0.4094 | |
| 138 | June 22, 2085 Annular | 0.0452 | 143 | December 16, 2085 Annular | 0.2786 | |
| 148 | June 11, 2086 Total | −0.7215 | 153 | December 6, 2086 Partial | 1.0194 | |
| 158 | June 1, 2087 Partial | −1.4186 | ||||
This eclipse is a part ofSaros series 128, repeating every 18 years, 11 days, and containing 73 events. The series started with a partial solar eclipse on August 29, 984 AD. It contains total eclipses from May 16, 1417 through June 18, 1471; hybrid eclipses from June 28, 1489 through July 31, 1543; and annular eclipses from August 11, 1561 through July 25, 2120. The series ends at member 73 as a partial eclipse on November 1, 2282. Its eclipses are tabulated in three columns; every third eclipse in the same column is oneexeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
The longest duration of totality was produced by member 27 at 1 minutes, 45 seconds on June 7, 1453, and the longest duration of annularity was produced by member 48 at 8 minutes, 35 seconds on February 1, 1832. All eclipses in this series occur at the Moon’sdescending node of orbit.[5]
| Series members 47–68 occur between 1801 and 2200: | ||
|---|---|---|
| 47 | 48 | 49 |
 January 21, 1814 |  February 1, 1832 |  February 12, 1850 |
| 50 | 51 | 52 |
 February 23, 1868 |  March 5, 1886 |  March 17, 1904 |
| 53 | 54 | 55 |
 March 28, 1922 |  April 7, 1940 |  April 19, 1958 |
| 56 | 57 | 58 |
 April 29, 1976 |  May 10, 1994 |  May 20, 2012 |
| 59 | 60 | 61 |
 June 1, 2030 |  June 11, 2048 |  June 22, 2066 |
| 62 | 63 | 64 |
July 3, 2084 |  July 15, 2102 |  July 25, 2120 |
| 65 | 66 | 67 |
 August 5, 2138 |  August 16, 2156 |  August 27, 2174 |
| 68 | ||
 September 6, 2192 | ||
Themetonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's descending node.
| 22 eclipse events between July 3, 2065 and November 26, 2152 | ||||
|---|---|---|---|---|
| July 3–4 | April 21–23 | February 7–8 | November 26–27 | September 13–15 |
| 118 | 120 | 122 | 124 | 126 |
 July 3, 2065 |  April 21, 2069 |  February 7, 2073 |  November 26, 2076 |  September 13, 2080 |
| 128 | 130 | 132 | 134 | 136 |
July 3, 2084 |  April 21, 2088 |  February 7, 2092 |  November 27, 2095 |  September 14, 2099 |
| 138 | 140 | 142 | 144 | 146 |
 July 4, 2103 |  April 23, 2107 |  February 8, 2111 |  November 27, 2114 |  September 15, 2118 |
| 148 | 150 | 152 | 154 | 156 |
 July 4, 2122 |  April 22, 2126 |  February 8, 2130 |  November 26, 2133 |  September 15, 2137 |
| 158 | 160 | 162 | 164 | |
 July 3, 2141 |  November 26, 2152 | |||
This eclipse is a part of atritos cycle, repeating at alternating nodes every 135synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
| Series members between 1866 and 2200 | ||||
|---|---|---|---|---|
 March 16, 1866 (Saros 108) |  December 13, 1898 (Saros 111) | |||
 September 12, 1931 (Saros 114) |  August 12, 1942 (Saros 115) |  July 11, 1953 (Saros 116) |  June 10, 1964 (Saros 117) | |
 May 11, 1975 (Saros 118) |  April 9, 1986 (Saros 119) |  March 9, 1997 (Saros 120) |  February 7, 2008 (Saros 121) |  January 6, 2019 (Saros 122) |
 December 5, 2029 (Saros 123) |  November 4, 2040 (Saros 124) |  October 4, 2051 (Saros 125) |  September 3, 2062 (Saros 126) |  August 3, 2073 (Saros 127) |
July 3, 2084 (Saros 128) |  June 2, 2095 (Saros 129) |  May 3, 2106 (Saros 130) |  April 2, 2117 (Saros 131) |  March 1, 2128 (Saros 132) |
 January 30, 2139 (Saros 133) |  December 30, 2149 (Saros 134) |  November 27, 2160 (Saros 135) |  October 29, 2171 (Saros 136) |  September 27, 2182 (Saros 137) |
 August 26, 2193 (Saros 138) | ||||
This eclipse is a part of the long periodinex cycle, repeating at alternating nodes, every 358synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
| Series members between 1801 and 2200 | ||
|---|---|---|
 January 1, 1824 (Saros 119) |  December 11, 1852 (Saros 120) |  November 21, 1881 (Saros 121) |
 November 2, 1910 (Saros 122) |  October 12, 1939 (Saros 123) |  September 22, 1968 (Saros 124) |
 September 2, 1997 (Saros 125) |  August 12, 2026 (Saros 126) |  July 24, 2055 (Saros 127) |
July 3, 2084 (Saros 128) |  June 13, 2113 (Saros 129) |  May 25, 2142 (Saros 130) |
 May 5, 2171 (Saros 131) |  April 14, 2200 (Saros 132) | |
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