September 2034 lunar eclipse
| Partial eclipse | |||||||||||||
| File:Lunar eclipse chart close-2034Sep28.png The Moon's hourly motion shown right to left | |||||||||||||
| Date | September 28, 2034 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −1.0110 | ||||||||||||
| Magnitude | 0.0155 | ||||||||||||
| Saros cycle | 147 (10 of 71) | ||||||||||||
| Partiality | 26 minutes, 42 seconds | ||||||||||||
| Penumbral | 248 minutes, 41 seconds | ||||||||||||
| |||||||||||||
A partial lunar eclipse will occur at the Moon’s descending node of orbit on Thursday, September 28, 2034,[1] with an umbral magnitude of 0.0155. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 1.9 days before perigee (on September 30, 2034, at 0:15 UTC), the Moon's apparent diameter will be larger.[2]
This will the second-shortest partial lunar eclipse in the 21st century, lasting 26 minutes and 42 seconds. On February 13, 2082, a slightly shorter partial eclipse will occur, lasting 25 minutes and 30 seconds.[3]
Visibility
[edit | edit source]The eclipse will be completely visible over eastern North America, South America, west Africa, and western Europe, seen rising over western North America and setting over east Africa and eastern Europe.[4]
| File:Lunar eclipse from moon-2034Sep28.png File:Lunar eclipse chart close-2034Sep28.png |
Eclipse details
[edit | edit source]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[5]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.99223 |
| Umbral Magnitude | 0.01554 |
| Gamma | −1.01103 |
| Sun Right Ascension | 12h18m35.8s |
| Sun Declination | -02°00'43.0" |
| Sun Semi-Diameter | 15'57.6" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 00h19m50.0s |
| Moon Declination | +01°02'59.4" |
| Moon Semi-Diameter | 16'20.4" |
| Moon Equatorial Horizontal Parallax | 0°59'58.2" |
| ΔT | 76.3 s |
Eclipse season
[edit | edit source]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.
| September 12 Ascending node (new moon) |
September 28 Descending node (full moon) |
|---|---|
| File:SE2034Sep12A.png | File:Lunar eclipse chart close-2034Sep28.png |
| Annular solar eclipse Solar Saros 135 |
Partial lunar eclipse Lunar Saros 147 |
Related eclipses
[edit | edit source]Eclipses in 2034
[edit | edit source]- A total solar eclipse on March 20.
- A penumbral lunar eclipse on April 3.
- An annular solar eclipse on September 12.
- A partial lunar eclipse on September 28.
Metonic
[edit | edit source]- Preceded by: Lunar eclipse of December 9, 2030
- Followed by: Lunar eclipse of July 16, 2038
Tzolkinex
[edit | edit source]- Preceded by: Lunar eclipse of August 17, 2027
- Followed by: Lunar eclipse of November 8, 2041
Half-Saros
[edit | edit source]- Preceded by: Solar eclipse of September 21, 2025
- Followed by: Solar eclipse of October 3, 2043
Tritos
[edit | edit source]- Preceded by: Lunar eclipse of October 28, 2023
- Followed by: Lunar eclipse of August 27, 2045
Lunar Saros 147
[edit | edit source]- Preceded by: Lunar eclipse of September 16, 2016
- Followed by: Lunar eclipse of October 8, 2052
Inex
[edit | edit source]- Preceded by: Lunar eclipse of October 17, 2005
- Followed by: Lunar eclipse of September 7, 2063
Triad
[edit | edit source]- Preceded by: Lunar eclipse of November 28, 1947
- Followed by: Lunar eclipse of July 30, 2121
Lunar eclipses of 2031–2034
[edit | edit source]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.[6]
The penumbral lunar eclipse on June 5, 2031 occurs in the previous lunar year eclipse set.
Saros 147
[edit | edit source]This eclipse is a part of Saros series 147, repeating every 18 years, 11 days, and containing 70 events. The series started with a penumbral lunar eclipse on July 2, 1890. It contains partial eclipses from September 28, 2034 through May 27, 2431; total eclipses from June 6, 2449 through October 5, 2647; and a second set of partial eclipses from October 16, 2665 through May 1, 2990. The series ends at member 70 as a penumbral eclipse on July 28, 3145.
The longest duration of totality will be produced by member 37 at 105 minutes, 18 seconds on August 1, 2539. All eclipses in this series occur at the Moon’s descending node of orbit.[7]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series will occur on 2539 Aug 01, lasting 105 minutes, 18 seconds.[8] | Penumbral | Partial | Total | Central |
| 1890 Jul 02 |
2034 Sep 28 File:Lunar eclipse chart close-2034Sep28.png |
2449 Jun 06 |
2485 Jun 28 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2593 Sep 02 |
2647 Oct 05 |
2990 May 01 |
3134 Jul 28 | |
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.
Tritos series
[edit | edit source]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.
Inex series
[edit | edit source]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 | |||||
|---|---|---|---|---|---|
| 1803 Mar 08 (Saros 139) |
1832 Feb 16 (Saros 140) |
1861 Jan 26 (Saros 141) | |||
| 1890 Jan 06 (Saros 142) |
1918 Dec 17 (Saros 143) |
1947 Nov 28 (Saros 144) | |||
| File:Lunar eclipse chart close-1918Dec17.png | File:Lunar eclipse from moon-1918Dec17.png | File:Lunar eclipse chart close-1947Nov28.png | File:Lunar eclipse from moon-1947Nov28.png | ||
| 1976 Nov 06 (Saros 145) |
2005 Oct 17 (Saros 146) |
2034 Sep 28 (Saros 147) | |||
| File:Lunar eclipse chart close-1976Nov06.png | File:Lunar eclipse from moon-1976Nov06.png | File:Lunar eclipse chart close-2005Oct17.png | File:Lunar eclipse from moon-2005Oct17.png | File:Lunar eclipse chart close-2034Sep28.png | File:Lunar eclipse from moon-2034Sep28.png |
| 2063 Sep 07 (Saros 148) |
2092 Aug 17 (Saros 149) |
2121 Jul 30 (Saros 150) | |||
| 2150 Jul 09 (Saros 151) |
2179 Jun 19 (Saros 152) | ||||
Half-Saros cycle
[edit | edit source]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[9] This lunar eclipse is related to two total solar eclipses of Solar Saros 154.
| September 21, 2025 | October 3, 2043 |
|---|---|
| File:SE2025Sep21P.png | File:SE2043Oct03A.png |
See also
[edit | edit source]References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Listing of Eclipses of series 147
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit | edit source]- 2034 Sep 28 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
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