April 2042 lunar eclipse
| Penumbral eclipse | |||||||||
 The Moon's hourly motion shown right to left | |||||||||
| Date | April 5, 2042 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.1080 | ||||||||
| Magnitude | −0.2156 | ||||||||
| Saros cycle | 113 (65 of 71) | ||||||||
| Penumbral | 268 minutes, 27 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Saturday, April 5, 2042,[1] with an umbral magnitude of −0.2156. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 1.6 days after apogee (on April 4, 2042, at 1:50 UTC), the Moon's apparent diameter will be smaller.[2]
Visibility
[edit]The eclipse will be completely visible over east Asia and Australia, seen rising over east Africa and west and central Asia and setting over western North America.[3]
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Eclipse details
[edit]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.87002 |
| Umbral Magnitude | −0.21557 |
| Gamma | 1.10805 |
| Sun Right Ascension | 00h58m43.2s |
| Sun Declination | +06°16'08.8" |
| Sun Semi-Diameter | 15'59.3" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 13h00m37.2s |
| Moon Declination | -05°23'23.8" |
| Moon Semi-Diameter | 14'43.6" |
| Moon Equatorial Horizontal Parallax | 0°54'03.0" |
| ΔT | 80.4 s |
Eclipse season
[edit]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.
| April 5 Descending node (full moon) |
April 20 Ascending node (new moon) |
|---|---|
|
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| Penumbral lunar eclipse Lunar Saros 113 |
Total solar eclipse Solar Saros 139 |
Related eclipses
[edit]Eclipses in 2042
[edit]- A penumbral lunar eclipse on April 5.
- A total solar eclipse on April 20.
- A penumbral lunar eclipse on September 29.
- An annular solar eclipse on October 14.
- A penumbral lunar eclipse on October 28.
Metonic
[edit]- Preceded by: Lunar eclipse of June 17, 2038
- Followed by: Lunar eclipse of January 22, 2046
Tzolkinex
[edit]- Preceded by: Lunar eclipse of February 22, 2035
- Followed by: Lunar eclipse of May 17, 2049
Half-Saros
[edit]- Preceded by: Solar eclipse of March 30, 2033
- Followed by: Solar eclipse of April 11, 2051
Tritos
[edit]- Preceded by: Lunar eclipse of May 7, 2031
- Followed by: Lunar eclipse of March 4, 2053
Lunar Saros 113
[edit]- Preceded by: Lunar eclipse of March 25, 2024
- Followed by: Lunar eclipse of April 15, 2060
Inex
[edit]- Preceded by: Lunar eclipse of April 25, 2013
- Followed by: Lunar eclipse of March 16, 2071
Triad
[edit]- Preceded by: Lunar eclipse of June 5, 1955
- Followed by: Lunar eclipse of February 4, 2129
Lunar eclipses of 2042–2045
[edit]This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]
The penumbral lunar eclipse on October 28, 2042 occurs in the previous lunar year eclipse set.
| Lunar eclipse series sets from 2042 to 2045 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 113 | 2042 Apr 05
|
Penumbral
|
1.1080 | 118 | 2042 Sep 29
|
Penumbral
|
−1.0261 | |
| 123 | 2043 Mar 25
|
Total
|
0.3849 | 128 | 2043 Sep 19
|
Total
|
−0.3316 | |
| 133 | 2044 Mar 13
|
Total
|
−0.3496 | 138 | 2044 Sep 07
|
Total
|
0.4318 | |
| 143 | 2045 Mar 03
|
Penumbral
|
−1.0274 | 148 | 2045 Aug 27
|
Penumbral
|
1.2060 | |
Saros 113
[edit]This eclipse is a part of Saros series 113, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on April 29, 888 AD. It contains partial eclipses from July 14, 1014 through March 10, 1411; total eclipses from March 20, 1429 through August 7, 1645; and a second set of partial eclipses from August 18, 1663 through February 21, 1970. The series ends at member 71 as a penumbral eclipse on June 10, 2150.
The longest duration of totality was produced by member 38 at 103 minutes, 6 seconds on June 5, 1555. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series occurred on 1555 Jun 05, lasting 103 minutes, 6 seconds.[7] | Penumbral | Partial | Total | Central |
| 888 Apr 29 |
1014 Jul 14 |
1429 Mar 20 |
1483 Apr 22 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 1609 Jul 16 |
1645 Aug 07 |
1970 Feb 21
|
2150 Jun 10 | |
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.
| Series members 52–71 occur between 1801 and 2150: | |||||
|---|---|---|---|---|---|
| 52 | 53 | 54 | |||
| 1807 Nov 15 | 1825 Nov 25 | 1843 Dec 07 | |||
| 55 | 56 | 57 | |||
| 1861 Dec 17 | 1879 Dec 28 | 1898 Jan 08 | |||
| 58 | 59 | 60 | |||
| 1916 Jan 20 | 1934 Jan 30 | 1952 Feb 11 | |||
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| 61 | 62 | 63 | |||
| 1970 Feb 21 | 1988 Mar 03 | 2006 Mar 14 | |||
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| 64 | 65 | 66 | |||
| 2024 Mar 25 | 2042 Apr 05 | 2060 Apr 15 | |||
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| 67 | 68 | 69 | |||
| 2078 Apr 27 | 2096 May 07 | 2114 May 19 | |||
| 70 | 71 | ||||
| 2132 May 30 | 2150 Jun 10 | ||||
Half-Saros cycle
[edit]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two annular solar eclipses of Solar Saros 120.
| March 30, 2033 | April 11, 2051 |
|---|---|
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See also
[edit]Notes
[edit]- ^ "April 5–6, 2042 Penumbral Lunar Eclipse". timeanddate. Retrieved 3 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 3 December 2024.
- ^ "Penumbral Lunar Eclipse of 2042 Apr 05" (PDF). NASA. Retrieved 3 December 2024.
- ^ "Penumbral Lunar Eclipse of 2042 Apr 05". EclipseWise.com. Retrieved 3 December 2024.
- ^ 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.
- ^ "NASA - Catalog of Lunar Eclipses of Saros 113". eclipse.gsfc.nasa.gov.
- ^ Listing of Eclipses of series 113
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 2042 Apr 05 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
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