Solar eclipse of January 26, 1990
Template:Short description Script error: No such module "Solar eclipse". An annular solar eclipse occurred at the Moon's ascending node of orbit on Friday, January 26, 1990,[1] with a magnitude of 0.967. 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 7.1 days after apogee (on January 19, 1990, at 16:00 UTC), the Moon's apparent diameter was smaller.[2]
Annularity was visible from a part of Antarctica. A partial eclipse was visible for parts of Antarctica, southern and eastern South America, and New Zealand.
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 | 1990 January 26 at 17:14:16.9 UTC |
| First Umbral External Contact | 1990 January 26 at 18:52:41.6 UTC |
| Equatorial Conjunction | 1990 January 26 at 18:52:52.1 UTC |
| First Central Line | 1990 January 26 at 18:56:20.7 UTC |
| Greatest Duration | 1990 January 26 at 18:56:20.7 UTC |
| First Umbral Internal Contact | 1990 January 26 at 19:00:22.0 UTC |
| Ecliptic Conjunction | 1990 January 26 at 19:20:58.8 UTC |
| Greatest Eclipse | 1990 January 26 at 19:31:23.9 UTC |
| Last Umbral Internal Contact | 1990 January 26 at 20:02:53.7 UTC |
| Last Central Line | 1990 January 26 at 20:06:51.8 UTC |
| Last Umbral External Contact | 1990 January 26 at 20:10:27.5 UTC |
| Last Penumbral External Contact | 1990 January 26 at 21:48:40.7 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.96698 |
| Eclipse Obscuration | 0.93506 |
| Gamma | −0.94571 |
| Sun Right Ascension | 20h35m55.4s |
| Sun Declination | -18°37'40.0" |
| Sun Semi-Diameter | 16'14.5" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 20h37m14.5s |
| Moon Declination | -19°28'27.1" |
| Moon Semi-Diameter | 15'38.0" |
| Moon Equatorial Horizontal Parallax | 0°57'22.4" |
| ΔT | 56.9 s |
Eclipse season
Script error: No such module "Labelled list hatnote". 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.
| January 26 Ascending node (new moon) |
February 9 Descending node (full moon) |
|---|---|
| File:SE1990Jan26A.png | File:Lunar eclipse chart close-1990Feb09.png |
| Annular solar eclipse Solar Saros 121 |
Total lunar eclipse Lunar Saros 133 |
Related eclipses
Eclipses in 1990
- An annular solar eclipse on January 26.
- A total lunar eclipse on February 9.
- A total solar eclipse on July 22.
- A partial lunar eclipse on August 6.
Metonic
- Preceded by: Solar eclipse of April 9, 1986
- Followed by: Solar eclipse of November 13, 1993
Tzolkinex
- Preceded by: Solar eclipse of December 15, 1982
- Followed by: Solar eclipse of March 9, 1997
Half-Saros
- Preceded by: Lunar eclipse of January 20, 1981
- Followed by: Lunar eclipse of January 31, 1999
Tritos
- Preceded by: Solar eclipse of February 26, 1979
- Followed by: Solar eclipse of December 25, 2000
Solar Saros 121
- Preceded by: Solar eclipse of January 16, 1972
- Followed by: Solar eclipse of February 7, 2008
Inex
- Preceded by: Solar eclipse of February 15, 1961
- Followed by: Solar eclipse of January 6, 2019
Triad
- Preceded by: Solar eclipse of March 29, 1903
- Followed by: Solar eclipse of November 26, 2076
Solar eclipses of 1990–1992
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.[4]
| Solar eclipse series sets from 1990 to 1992 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 121 | January 26, 1990 File:SE1990Jan26A.png Annular |
−0.9457 | 126 File:1990.04 Pimennys (28866343838) (cropped).jpg Partial in Finland |
July 22, 1990 File:SE1990Jul22T.png Total |
0.7597 | |
| 131 | January 15, 1991 File:SE1991Jan15A.png Annular |
−0.2727 | 136 File:Eclipse CR 1991 a zoom.jpg Totality in Playas del Coco, Costa Rica |
July 11, 1991 File:SE1991Jul11T.png Total |
−0.0041 | |
| 141 | January 4, 1992 File:SE1992Jan04A.png Annular |
0.4091 | 146 | June 30, 1992 File:SE1992Jun30T.png Total |
−0.7512 | |
| 151 | December 24, 1992 File:SE1992Dec24P.png Partial |
1.0711 | ||||
_(cropped).jpg){kind=link}
Saros 121
Template:Solar Saros series 121
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.
| 21 eclipse events between June 21, 1982 and June 21, 2058 | ||||
|---|---|---|---|---|
| June 21 | April 8–9 | January 26 | November 13–14 | September 1–2 |
| 117 | 119 | 121 | 123 | 125 |
| File:SE1982Jun21P.png June 21, 1982 |
File:SE1986Apr09P.png April 9, 1986 |
File:SE1990Jan26A.png January 26, 1990 |
File:SE1993Nov13P.png November 13, 1993 |
File:SE1997Sep02P.png September 2, 1997 |
| 127 | 129 | 131 | 133 | 135 |
| File:SE2001Jun21T.png June 21, 2001 |
File:SE2005Apr08H.png April 8, 2005 |
File:SE2009Jan26A.png January 26, 2009 |
File:SE2012Nov13T.png November 13, 2012 |
File:SE2016Sep01A.png September 1, 2016 |
| 137 | 139 | 141 | 143 | 145 |
| File:SE2020Jun21A.png June 21, 2020 |
File:SE2024Apr08T.png April 8, 2024 |
File:SE2028Jan26A.png January 26, 2028 |
File:SE2031Nov14H.png November 14, 2031 |
File:SE2035Sep02T.png September 2, 2035 |
| 147 | 149 | 151 | 153 | 155 |
| File:SE2039Jun21A.png June 21, 2039 |
File:SE2043Apr09T.png April 9, 2043 |
File:SE2047Jan26P.png January 26, 2047 |
File:SE2050Nov14P.png November 14, 2050 |
File:SE2054Sep02P.png September 2, 2054 |
| 157 | ||||
| File:SE2058Jun21P.png June 21, 2058 | ||||
Tritos series
Template:Solar Tritos series 2000 December 25
Inex series
Template:Solar Inex series 2019 January 6
Notes
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References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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