November 1955 lunar eclipse
Template:Short description Template:Infobox lunar eclipse A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, November 29, 1955,[1] with an umbral magnitude of 0.1190. 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 only about 18.5 hours before perigee (on November 30, 1955, at 11:25 UTC), the Moon's apparent diameter was larger.[2]
Visibility
The eclipse was completely visible over eastern Europe, Asia, and Australia, seen rising over Africa and western Europe and setting over the central Pacific Ocean and northwestern North America.[3]
| File:Lunar eclipse from moon-1955Nov29.png File:Lunar eclipse chart close-1955Nov29.png |
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 | 1.09167 |
| Umbral Magnitude | 0.11899 |
| Gamma | 0.95514 |
| Sun Right Ascension | 16h19m25.1s |
| Sun Declination | -21°25'59.1" |
| Sun Semi-Diameter | 16'13.0" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 04h19m06.8s |
| Moon Declination | +22°24'16.1" |
| Moon Semi-Diameter | 16'40.3" |
| Moon Equatorial Horizontal Parallax | 1°01'11.3" |
| ΔT | 31.4 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.
| November 29 Descending node (full moon) |
December 14 Ascending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-1955Nov29.png | File:SE1955Dec14A.png |
| Partial lunar eclipse Lunar Saros 115 |
Annular solar eclipse Solar Saros 141 |
Related eclipses
Eclipses in 1955
- A penumbral lunar eclipse on January 8.
- A penumbral lunar eclipse on June 5.
- A total solar eclipse on June 20.
- A partial lunar eclipse on November 29.
- An annular solar eclipse on December 14.
Metonic
- Preceded by: Lunar eclipse of February 11, 1952
- Followed by: Lunar eclipse of September 17, 1959
Tzolkinex
- Preceded by: Lunar eclipse of October 18, 1948
- Followed by: Lunar eclipse of January 9, 1963
Half-Saros
- Preceded by: Solar eclipse of November 23, 1946
- Followed by: Solar eclipse of December 4, 1964
Tritos
- Preceded by: Lunar eclipse of December 29, 1944
- Followed by: Lunar eclipse of October 29, 1966
Lunar Saros 115
- Preceded by: Lunar eclipse of November 18, 1937
- Followed by: Lunar eclipse of December 10, 1973
Inex
- Preceded by: Lunar eclipse of December 19, 1926
- Followed by: Lunar eclipse of November 8, 1984
Triad
- Preceded by: Lunar eclipse of January 28, 1869
- Followed by: Lunar eclipse of September 29, 2042
Lunar eclipses of 1955–1958
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 January 8, 1955 occurs in the previous lunar year eclipse set, and the penumbral lunar eclipse on April 4, 1958 occurs in the next lunar year eclipse set.
Saros 115
Template:Lunar Saros series 115
Tritos series
Template:Lunar Tritos series June 2010
Inex series
Template:Lunar Inex series October 2013
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 partial solar eclipses of Solar Saros 122.
| November 23, 1946 | December 4, 1964 |
|---|---|
| File:SE1946Nov23P.png | File:SE1964Dec04P.png |
See also
Notes
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- ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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External links
- 1955 Nov 29 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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