Solar eclipse of July 31, 2000

Solar eclipse of July 31, 2000
Partial eclipse
Map
Gamma1.2166
Magnitude0.6034
Maximum eclipse
Coordinates69°30′N59°54′W / 69.5°N 59.9°W / 69.5; -59.9
Times (UTC)
Greatest eclipse2:14:08
References
Saros155 (5 of 71)
Catalog # (SE5000)9508

A partial solar eclipse occurred at the Moon’s ascending node of orbit between Sunday, July 30 and Monday, July 31, 2000,[1] with a magnitude of 0.6034. 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. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

This was the third of four partial solar eclipses in 2000, with the others occurring on February 5, July 1, and December 25.

A partial eclipse was visible for parts of northern Russia, northeastern Scandinavia, Alaska, western Canada, Greenland, and the western United States.

Images

Animated path

Eclipse timing

Places experiencing partial eclipse

Solar Eclipse of July 31, 2000(Local Times)
Country or territory City or place Start of partial eclipse Maximum eclipse End of partial eclipse Duration of eclipse (hr:min) Maximum coverage
 RussiaSamara05:54:53 (sunrise)05:59:5106:21:460:274.05%
 RussiaYekaterinburg06:38:5207:01:0607:23:500:453.89%
 KazakhstanOral05:57:54 (sunrise)06:01:4806:13:560:161.62%
 RussiaIzhevsk05:37:3206:03:1406:29:320:526.70%
 RussiaBelushya Guba04:45:4005:24:4806:04:491:1923.75%
 RussiaMurmansk04:46:4205:25:5406:05:551:1928.59%
 FinlandRovaniemi03:52:31 (sunrise)04:25:5505:05:141:1329.45%
 SwedenKiruna02:52:43 (sunrise)03:29:4704:10:041:1732.82%
 NorwayTromsø02:51:4203:32:0804:13:141:2234.58%
 RussiaMoscow05:33:03 (sunrise)05:38:3105:38:450:060.02%
 Svalbard and Jan MayenLongyearbyen02:58:4603:42:2104:26:251:2839.18%
 GreenlandDanmarkshavn01:08:1901:52:2802:36:481:2846.42%
 GreenlandPituffik[a]22:25:1623:11:0023:56:171:3149.80%
 CanadaPond Inlet[a]20:32:5221:18:1622:03:021:3050.37%
 CanadaResolute[a]20:34:3421:20:5722:06:311:3247.43%
 RussiaAnadyr14:52:1515:27:1016:01:231:097.66%
 CanadaCoral Harbour[a]20:46:2821:30:0721:41:05 (sunset)0:5548.77%
 CanadaBaker Lake[a]20:51:3421:35:5222:19:041:2846.00%
 CanadaInuvik[a]19:51:2420:37:2421:21:581:3133.88%
 CanadaRegina[a]20:18:3620:40:5420:44:43 (sunset)0:2621.40%
 United StatesSalt Lake City[a]20:41:3520:43:0620:44:38 (sunset)0:030.37%
 United StatesAnchorage[a]18:07:3618:49:1919:29:301:2219.49%
 CanadaWhitehorse[a]19:08:0519:51:2320:33:031:2527.30%
 United StatesJuneau[a]18:13:2918:55:3819:36:101:2325.34%
 United StatesUnalaska[a]18:32:1018:57:0819:21:260:492.90%
 CanadaEdmonton[a]20:17:1920:58:0221:32:38 (sunset)1:1531.28%
 CanadaCalgary[a]20:22:2321:01:4421:24:45 (sunset)1:0228.21%
 CanadaVancouver[a]19:30:1220:07:5020:44:021:1421.61%
 United StatesSeattle[a]19:33:2720:09:5620:45:021:1219.95%
 United StatesSan Francisco[a]19:56:5220:15:0620:19:40 (sunset)0:236.21%
References: [1]

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.[2]

July 31, 2000 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 2000 July 31 at 00:38:31.2 UTC
Equatorial Conjunction 2000 July 31 at 01:53:07.4 UTC
Greatest Eclipse 2000 July 31 at 02:14:07.7 UTC
Ecliptic Conjunction 2000 July 31 at 02:26:13.1 UTC
Last Penumbral External Contact 2000 July 31 at 03:49:55.6 UTC
July 31, 2000 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.60337
Eclipse Obscuration 0.51669
Gamma 1.21664
Sun Right Ascension 08h42m24.7s
Sun Declination +18°13'08.6"
Sun Semi-Diameter 15'45.4"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 08h43m16.7s
Moon Declination +19°26'16.2"
Moon Semi-Diameter 16'38.8"
Moon Equatorial Horizontal Parallax 1°01'05.5"
ΔT 63.9 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of July 2000
July 1Ascending node (new moon)July 16Descending node (full moon)July 31Ascending node (new moon)
Partial solar eclipseSolar Saros 117Total lunar eclipseLunar Saros 129Partial solar eclipseSolar Saros 155

Eclipses in 2000

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 155

Inex

Triad

Solar eclipses of 1997–2000

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[3]

The partial solar eclipses on July 1, 2000 and December 25, 2000 occur in the next lunar year eclipse set.

Solar eclipse series sets from 1997 to 2000
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
120Totality in Chita, RussiaMarch 9, 1997Total 0.9183 125 September 2, 1997Partial −1.0352
130Totality near GuadeloupeFebruary 26, 1998Total 0.2391 135 August 22, 1998Annular −0.2644
140 February 16, 1999Annular −0.4726 145Totality in FranceAugust 11, 1999Total 0.5062
150 February 5, 2000Partial −1.2233 155 July 31, 2000Partial 1.2166

Saros 155

This eclipse is a part of Saros series 155, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on June 17, 1928. It contains total eclipses from September 12, 2072 through August 30, 2649; hybrid eclipses from September 10, 2667 through October 2, 2703; and annular eclipses from October 13, 2721 through May 8, 3064. The series ends at member 71 as a partial eclipse on July 24, 3190. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

The longest duration of totality will be produced by member 14 at 4 minutes, 5 seconds on November 6, 2162, and the longest duration of annularity will be produced by member 63 at 5 minutes, 31 seconds on April 28, 3046. All eclipses in this series occur at the Moon’s ascending node of orbit.[4]

Series members 1–16 occur between 1928 and 2200:
1 2 3
June 17, 1928June 29, 1946July 9, 1964
4 5 6
July 20, 1982July 31, 2000August 11, 2018
7 8 9
August 21, 2036September 2, 2054September 12, 2072
10 11 12
September 23, 2090October 5, 2108 October 16, 2126
13 14 15
October 26, 2144 November 7, 2162 November 17, 2180
16
November 28, 2198

Metonic series

The metonic 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 ascending node.

22 eclipse events between December 24, 1916 and July 31, 2000
December 24–25 October 12 July 31–August 1 May 19–20 March 7
111 113 115 117 119
December 24, 1916July 31, 1924May 19, 1928March 7, 1932
121 123 125 127 129
December 25, 1935October 12, 1939August 1, 1943May 20, 1947March 7, 1951
131 133 135 137 139
December 25, 1954October 12, 1958July 31, 1962May 20, 1966March 7, 1970
141 143 145 147 149
December 24, 1973October 12, 1977July 31, 1981May 19, 1985March 7, 1989
151 153 155
December 24, 1992October 12, 1996July 31, 2000

Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic 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.

The partial solar eclipse on October 24, 2098 (part of Saros 164) is also a part of this series but is not included in the table below.

Series members between 1801 and 2011
February 11, 1804(Saros 137) January 10, 1815(Saros 138) December 9, 1825(Saros 139) November 9, 1836(Saros 140) October 9, 1847(Saros 141)
September 7, 1858(Saros 142) August 7, 1869(Saros 143) July 7, 1880(Saros 144) June 6, 1891(Saros 145) May 7, 1902(Saros 146)
April 6, 1913(Saros 147) March 5, 1924(Saros 148) February 3, 1935(Saros 149) January 3, 1946(Saros 150) December 2, 1956(Saros 151)
November 2, 1967(Saros 152) October 2, 1978(Saros 153) August 31, 1989(Saros 154) July 31, 2000(Saros 155) July 1, 2011(Saros 156)

Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic 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
November 29, 1826(Saros 149) November 9, 1855(Saros 150) October 19, 1884(Saros 151)
September 30, 1913(Saros 152) September 10, 1942(Saros 153) August 20, 1971(Saros 154)
July 31, 2000(Saros 155) July 11, 2029(Saros 156) June 21, 2058(Saros 157)
June 1, 2087(Saros 158)
April 1, 2174(Saros 161)

Notes

  1. ^ abcdefghijklmnopqThe times listed for this location occur on July 30, 2000, local time.

References

  1. ^ ab"July 31, 2000 Partial Solar Eclipse". timeanddate. Retrieved 10 August 2024.
  2. ^"Partial Solar Eclipse of 2000 Jul 31". EclipseWise.com. Retrieved 10 August 2024.
  3. ^van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  4. ^"NASA - Catalog of Solar Eclipses of Saros 155". eclipse.gsfc.nasa.gov.
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