January 1934 lunar eclipse
| Partial eclipse | |||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||
| Date | January 30, 1934 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | 0.9258 | ||||||||||||
| Magnitude | 0.1120 | ||||||||||||
| Saros cycle | 113 (59 of 71) | ||||||||||||
| Partiality | 80 minutes, 55 seconds | ||||||||||||
| Penumbral | 304 minutes, 16 seconds | ||||||||||||
| |||||||||||||
A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, January 30, 1934,[1] with an umbral magnitude of 0.1120. 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 2.9 days after apogee (on January 27, 1934, at 18:55 UTC), the Moon's apparent diameter was smaller.[2]
Visibility
The eclipse was completely visible over Asia and Australia, seen rising over Africa and Europe and setting over western North America and the central Pacific Ocean.[3]
|
Eclipse details
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 | 1.20734 |
| Umbral Magnitude | 0.11204 |
| Gamma | 0.92581 |
| Sun Right Ascension | 20h50m17.7s |
| Sun Declination | -17°42'54.6" |
| Sun Semi-Diameter | 16'14.0" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 08h51m34.9s |
| Moon Declination | +18°29'48.4" |
| Moon Semi-Diameter | 14'49.3" |
| Moon Equatorial Horizontal Parallax | 0°54'23.7" |
| ΔT | 23.8 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.
| January 30 Descending node (full moon) |
February 14 Ascending node (new moon) |
|---|---|
|
|
| Partial lunar eclipse Lunar Saros 113 |
Total solar eclipse Solar Saros 139 |
Related eclipses
Eclipses in 1934
- A partial lunar eclipse on January 30.
- A total solar eclipse on February 14.
- A partial lunar eclipse on July 26.
- An annular solar eclipse on August 10.
Metonic
- Preceded by: Lunar eclipse of April 13, 1930
- Followed by: Lunar eclipse of November 18, 1937
Tzolkinex
- Preceded by: Lunar eclipse of December 19, 1926
- Followed by: Lunar eclipse of March 13, 1941
Half-Saros
- Preceded by: Solar eclipse of January 24, 1925
- Followed by: Solar eclipse of February 4, 1943
Tritos
- Preceded by: Lunar eclipse of March 3, 1923
- Followed by: Lunar eclipse of December 29, 1944
Lunar Saros 113
- Preceded by: Lunar eclipse of January 20, 1916
- Followed by: Lunar eclipse of February 11, 1952
Inex
- Preceded by: Lunar eclipse of February 19, 1905
- Followed by: Lunar eclipse of January 9, 1963
Triad
- Preceded by: Lunar eclipse of March 31, 1847
- Followed by: Lunar eclipse of November 30, 2020
Lunar eclipses of 1933–1936
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 eclipses on March 12, 1933 and September 4, 1933 occur in the previous lunar year eclipse set.
| Lunar eclipse series sets from 1933 to 1936 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 103 | 1933 Feb 10
|
Penumbral
|
1.5600 | 108 | 1933 Aug 05
|
Penumbral
|
−1.4216 | |
| 113 | 1934 Jan 30
|
Partial
|
0.9258 | 118 | 1934 Jul 26
|
Partial
|
−0.6681 | |
| 123 | 1935 Jan 19
|
Total
|
0.2498 | 128 | 1935 Jul 16
|
Total
|
0.0672 | |
| 133 | 1936 Jan 08
|
Total
|
−0.4429 | 138 | 1936 Jul 04
|
Partial
|
0.8642 | |
| 143 | 1936 Dec 28
|
Penumbral
|
−1.0971 | |||||
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[6] This lunar eclipse is related to two total solar eclipses of Solar Saros 120.
| January 24, 1925 | February 4, 1943 |
|---|---|
|
|
See also
Notes
- ^ "January 30–31, 1934 Partial Lunar Eclipse". timeanddate. Retrieved 17 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 17 December 2024.
- ^ "Partial Lunar Eclipse of 1934 Jan 30" (PDF). NASA. Retrieved 17 December 2024.
- ^ "Partial Lunar Eclipse of 1934 Jan 30". EclipseWise.com. Retrieved 17 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.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
- 1934 Jan 30 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
