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Solar eclipse of April 3, 1848

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Solar eclipse of April 3, 1848
Map
Type of eclipse
NaturePartial
Gamma−1.2264
Magnitude0.5834
Maximum eclipse
Coordinates71°48′S 89°00′W / 71.8°S 89°W / -71.8; -89
Times (UTC)
Greatest eclipse22:49:07
References
Saros146 (18 of 76)
Catalog # (SE5000)9158

A partial solar eclipse occurred at the Moon's descending node of orbit between Monday, April 3 and Tuesday, April 4, 1848, with a magnitude of 0.5834. 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 eclipse was the second of four partial solar eclipses in 1848, with the others occurring on March 5, August 28 and September 27.

Description

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The eclipse was visible in the Pacific Ocean and included the northeast and northwestern Antarctica especially a part of the west of the Antarctic Peninsula.

The eclipse started at sunrise offshore from Antarctica where the Indian and the Pacific Ocean divide and ended at sunset in the peninsula and offshore from Chile.

It showed about up to 15-30% obscuration in northern Antarctica within the 180th meridian, and from 48% to 58% obscuration in the peninsular portion.

10% obscurity in northern Antarctica and 20% at the Antarctic peninsula. The greatest eclipse was at the Antarctic Peninsula at 71.8 S, 89 W at 22:49 UTC (4:49 PM local time).[1]

The subsolar marking was north of the 5th parallel north in the Pacific around the Palmyra Atoll.

Eclipse details

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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]

April 3, 1848 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1848 April 03 at 21:14:32.9 UTC
Equatorial Conjunction 1848 April 03 at 22:09:39.8 UTC
Greatest Eclipse 1848 April 03 at 22:49:06.4 UTC
Ecliptic Conjunction 1848 April 03 at 23:01:13.0 UTC
Last Penumbral External Contact 1848 April 04 at 00:23:57.4 UTC
April 3, 1848 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.58339
Eclipse Obscuration 0.49152
Gamma −1.22641
Sun Right Ascension 00h52m39.7s
Sun Declination +05°38'38.8"
Sun Semi-Diameter 15'58.8"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 00h54m09.3s
Moon Declination +04°27'04.6"
Moon Semi-Diameter 16'41.7"
Moon Equatorial Horizontal Parallax 1°01'16.4"
ΔT 6.7 s

Eclipse season

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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 March–April 1848
March 5
Descending node (new moon)
March 19
Ascending node (full moon)
April 3
Descending node (new moon)
Partial solar eclipse
Solar Saros 108
Total lunar eclipse
Lunar Saros 120
Partial solar eclipse
Solar Saros 146
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Eclipses in 1848

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Solar Saros 146

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Inex

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Triad

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Solar eclipses of 1844–1848

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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 June 16, 1844 and December 9, 1844 occur in the previous lunar year eclipse set, and the partial solar eclipses on March 5, 1848 and August 28, 1848 occur in the next lunar year eclipse set.

Solar eclipse series sets from 1844 to 1848
Ascending node   Descending node
Saros Map Gamma Saros Map Gamma
111 November 10, 1844

Partial
−1.4902 116 May 6, 1845

Annular
0.9945
121 October 30, 1845

Hybrid
−0.8538 126 April 25, 1846

Hybrid
0.2038
131 October 20, 1846

Annular
−0.1506 136 April 15, 1847

Total
−0.5339
141 October 9, 1847

Annular
0.5774 146 April 3, 1848

Partial
−1.2264
151 September 27, 1848

Partial
1.2774

Saros 146

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This eclipse is a part of Saros series 146, repeating every 18 years, 11 days, and containing 76 events. The series started with a partial solar eclipse on September 19, 1541. It contains total eclipses from May 29, 1938 through October 7, 2154; hybrid eclipses from October 17, 2172 through November 20, 2226; and annular eclipses from November 30, 2244 through August 10, 2659. The series ends at member 76 as a partial eclipse on December 29, 2893. 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 was produced by member 26 at 5 minutes, 21 seconds on June 30, 1992, and the longest duration of annularity will be produced by member 63 at 3 minutes, 30 seconds on August 10, 2659. All eclipses in this series occur at the Moon’s descending node of orbit.[4]

Series members 16–37 occur between 1801 and 2200:
16 17 18

March 13, 1812

March 24, 1830

April 3, 1848
19 20 21

April 15, 1866

April 25, 1884

May 7, 1902
22 23 24

May 18, 1920

May 29, 1938

June 8, 1956
25 26 27

June 20, 1974

June 30, 1992

July 11, 2010
28 29 30

July 22, 2028

August 2, 2046

August 12, 2064
31 32 33

August 24, 2082

September 4, 2100

September 15, 2118
34 35 36

September 26, 2136

October 7, 2154

October 17, 2172
37

October 29, 2190

Metonic series

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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 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

Tritos series

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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.

Series members between 1801 and 1946

August 5, 1804
(Saros 142)

July 6, 1815
(Saros 143)

June 5, 1826
(Saros 144)

May 4, 1837
(Saros 145)

April 3, 1848
(Saros 146)

March 4, 1859
(Saros 147)

January 31, 1870
(Saros 148)

December 31, 1880
(Saros 149)

December 1, 1891
(Saros 150)

October 31, 1902
(Saros 151)

September 30, 1913
(Saros 152)

August 30, 1924
(Saros 153)

July 30, 1935
(Saros 154)

June 29, 1946
(Saros 155)

Inex series

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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

April 24, 1819
(Saros 145)

April 3, 1848
(Saros 146)

March 15, 1877
(Saros 147)

February 23, 1906
(Saros 148)

February 3, 1935
(Saros 149)

January 14, 1964
(Saros 150)

December 24, 1992
(Saros 151)

December 4, 2021
(Saros 152)

November 14, 2050
(Saros 153)

October 24, 2079
(Saros 154)

October 5, 2108
(Saros 155)

September 15, 2137
(Saros 156)

August 25, 2166
(Saros 157)

August 5, 2195
(Saros 158)

See also

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References

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  1. ^ "Solar eclipse of April 3, 1848". NASA. Retrieved March 18, 2017.
  2. ^ "Partial Solar Eclipse of 1848 Apr 03". EclipseWise.com. Retrieved 20 September 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 146". eclipse.gsfc.nasa.gov.
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