May 1958 lunar eclipse
Template:Short description Template:Infobox lunar eclipse A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, May 3, 1958,[1] with an umbral magnitude of 0.0092. 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 1.2 days after perigee (on May 2, 1958, at 7:00 UTC), the Moon's apparent diameter was larger.[2]
Visibility
The eclipse was completely visible over northeast Asia, Australia, and Antarctica, seen rising over east, southeast, and south Asia and setting over much of North America and western South America.[3]
| File:Lunar eclipse from moon-1958May03.png File:Lunar eclipse chart close-1958May03.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 | 0.96760 |
| Umbral Magnitude | 0.00919 |
| Gamma | 1.01884 |
| Sun Right Ascension | 02h40m25.8s |
| Sun Declination | +15°36'27.0" |
| Sun Semi-Diameter | 15'51.8" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 14h41m19.7s |
| Moon Declination | -14°35'56.8" |
| Moon Semi-Diameter | 16'33.1" |
| Moon Equatorial Horizontal Parallax | 1°00'44.9" |
| ΔT | 32.4 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. The first and last eclipse in this sequence is separated by one synodic month.
| April 4 Ascending node (full moon) |
April 19 Descending node (new moon) |
May 3 Ascending node (full moon) |
|---|---|---|
| File:Lunar eclipse chart close-1958Apr04.png | File:SE1958Apr19A.png | File:Lunar eclipse chart close-1958May03.png |
| Penumbral lunar eclipse Lunar Saros 102 |
Annular solar eclipse Solar Saros 128 |
Partial lunar eclipse Lunar Saros 140 |
Related eclipses
Eclipses in 1958
- A penumbral lunar eclipse on April 4.
- An annular solar eclipse on April 19.
- A partial lunar eclipse on May 3.
- A total solar eclipse on October 12.
- A penumbral lunar eclipse on October 27.
Metonic
- Preceded by: Lunar eclipse of July 16, 1954
- Followed by: Lunar eclipse of February 19, 1962
Tzolkinex
- Preceded by: Lunar eclipse of March 23, 1951
- Followed by: Lunar eclipse of June 14, 1965
Half-Saros
- Preceded by: Solar eclipse of April 28, 1949
- Followed by: Solar eclipse of May 9, 1967
Tritos
- Preceded by: Lunar eclipse of June 3, 1947
- Followed by: Lunar eclipse of April 2, 1969
Lunar Saros 140
- Preceded by: Lunar eclipse of April 22, 1940
- Followed by: Lunar eclipse of May 13, 1976
Inex
- Preceded by: Lunar eclipse of May 23, 1929
- Followed by: Lunar eclipse of April 14, 1987
Triad
- Preceded by: Lunar eclipse of July 2, 1871
- Followed by: Lunar eclipse of March 3, 2045
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 140
Template:Lunar Saros series 140
Tritos series
Template:Lunar Tritos series December 2001
Inex series
Template:Lunar Inex series March 2016
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 147.
| April 28, 1949 | May 9, 1967 |
|---|---|
| File:SE1949Apr28P.png | File:SE1967May09P.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
- 1958 May 03 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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