Solar eclipse of February 7, 2073

Solar eclipse of February 7, 2073
Solar eclipse of February 7, 2073
	Map
Type of eclipse
Nature	Partial
Gamma	1.1651
Magnitude	0.6768
Maximum eclipse
Coordinates	70°30′N 114°54′E / 70.5°N 114.9°E
Times (UTC)
Greatest eclipse	1:55:59
References
Saros	122 (61 of 70)
Catalog # (SE5000)	9671

A partial solar eclipse will occur at the Moon's descending node of orbit between Monday, February 6 and Tuesday, February 7, 2073,^[1] with a magnitude of 0.6768. 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.

The partial solar eclipse will be visible for parts of East Asia, Northeast Asia, and western Alaska.

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]

February 7, 2073 Solar Eclipse Times
Event	Time (UTC)
First Penumbral External Contact	2073 February 06 at 23:52:47.2 UTC
Ecliptic Conjunction	2073 February 07 at 01:42:33.9 UTC
Greatest Eclipse	2073 February 07 at 01:55:59.0 UTC
Equatorial Conjunction	2073 February 07 at 02:26:11.2 UTC
Last Penumbral External Contact	2073 February 07 at 03:59:00.8 UTC

February 7, 2073 Solar Eclipse Parameters
Parameter	Value
Eclipse Magnitude	0.67685
Eclipse Obscuration	0.57838
Gamma	1.16506
Sun Right Ascension	21h25m15.3s
Sun Declination	-15°09'16.6"
Sun Semi-Diameter	16'13.0"
Sun Equatorial Horizontal Parallax	08.9"
Moon Right Ascension	21h24m18.6s
Moon Declination	-14°07'10.1"
Moon Semi-Diameter	14'54.9"
Moon Equatorial Horizontal Parallax	0°54'44.3"
ΔT	99.9 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.

Eclipse season of February 2073
February 7 Descending node (new moon)	February 22 Ascending node (full moon)

Partial solar eclipse Solar Saros 122	Total lunar eclipse Lunar Saros 134

Related eclipses

Solar eclipses of 2073–2076

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 1, 2076 and November 26, 2076 occur in the next lunar year eclipse set.

Solar eclipse series sets from 2073 to 2076
Descending node			Ascending node
Saros	Map	Gamma	Saros	Map	Gamma
122	February 7, 2073 Partial	1.1651	127	August 3, 2073 Total	−0.8763
132	January 27, 2074 Annular	0.4251	137	July 24, 2074 Annular	−0.1242
142	January 16, 2075 Total	−0.2799	147	July 13, 2075 Annular	0.6583
152	January 6, 2076 Total	−0.9373	157	July 1, 2076 Partial	1.4005

Saros 122

This eclipse is a part of Saros series 122, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 17, 991 AD. It contains total eclipses from July 12, 1135 through August 3, 1171; hybrid eclipses on August 13, 1189 and August 25, 1207; and annular eclipses from September 4, 1225 through October 10, 1874. The series ends at member 70 as a partial eclipse on May 17, 2235. 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 9 at 1 minutes, 25 seconds on July 12, 1135, and the longest duration of annularity was produced by member 50 at 6 minutes, 28 seconds on October 10, 1874. All eclipses in this series occur at the Moon’s descending node of orbit.^[4]

Series members 46–68 occur between 1801 and 2200:
46	47	48
August 28, 1802	September 7, 1820	September 18, 1838
49	50	51
September 29, 1856	October 10, 1874	October 20, 1892
52	53	54
November 2, 1910	November 12, 1928	November 23, 1946
55	56	57
December 4, 1964	December 15, 1982	December 25, 2000
58	59	60
January 6, 2019	January 16, 2037	January 27, 2055
61	62	63
February 7, 2073	February 18, 2091	March 1, 2109
64	65	66
March 13, 2127	March 23, 2145	April 3, 2163
67	68
April 14, 2181	April 25, 2199

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 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

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.

Series members between 2018 and 2200
July 13, 2018 (Saros 117)	June 12, 2029 (Saros 118)	May 11, 2040 (Saros 119)	April 11, 2051 (Saros 120)	March 11, 2062 (Saros 121)
February 7, 2073 (Saros 122)	January 7, 2084 (Saros 123)	December 7, 2094 (Saros 124)	November 6, 2105 (Saros 125)	October 6, 2116 (Saros 126)
September 6, 2127 (Saros 127)	August 5, 2138 (Saros 128)	July 5, 2149 (Saros 129)	June 4, 2160 (Saros 130)	May 5, 2171 (Saros 131)
April 3, 2182 (Saros 132)	March 3, 2193 (Saros 133)

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
August 7, 1812 (Saros 113)	July 18, 1841 (Saros 114)	June 28, 1870 (Saros 115)
June 8, 1899 (Saros 116)	May 19, 1928 (Saros 117)	April 30, 1957 (Saros 118)
April 9, 1986 (Saros 119)	March 20, 2015 (Saros 120)	February 28, 2044 (Saros 121)
February 7, 2073 (Saros 122)	January 19, 2102 (Saros 123)	December 30, 2130 (Saros 124)
December 9, 2159 (Saros 125)	November 18, 2188 (Saros 126)