July 1944 lunar eclipse
| Penumbral eclipse | |||||||||
 The Moon's hourly motion shown right to left | |||||||||
| Date | July 6, 1944 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.2597 | ||||||||
| Magnitude | −0.4398 | ||||||||
| Saros cycle | 109 (69 of 73) | ||||||||
| Penumbral | 192 minutes, 43 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Thursday, July 6, 1944,[1] with an umbral magnitude of −0.4398. 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 2.8 days before perigee (on July 8, 1944, at 23:40 UTC), the Moon's apparent diameter was larger.[2]
This eclipse was the second of four penumbral lunar eclipses in 1944, with the others occurring on February 9, August 4, and December 29.
Visibility
[edit]The eclipse was completely visible over much of North America, South America, and Antarctica, seen rising over northwestern North America and the central Pacific Ocean and setting over western Europe and Africa.[3]
|
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 | 0.53278 |
| Umbral Magnitude | −0.43977 |
| Gamma | 1.25971 |
| Sun Right Ascension | 07h00m41.1s |
| Sun Declination | +22°42'44.2" |
| Sun Semi-Diameter | 15'43.9" |
| Sun Equatorial Horizontal Parallax | 08.6" |
| Moon Right Ascension | 19h00m38.4s |
| Moon Declination | -21°27'57.6" |
| Moon Semi-Diameter | 16'10.5" |
| Moon Equatorial Horizontal Parallax | 0°59'21.8" |
| ΔT | 26.6 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. The first and last eclipse in this sequence is separated by one synodic month.
| July 6 Descending node (full moon) |
July 20 Ascending node (new moon) |
August 4 Descending node (full moon) |
|---|---|---|
|
 |
|
| Penumbral lunar eclipse Lunar Saros 109 |
Annular solar eclipse Solar Saros 135 |
Penumbral lunar eclipse Lunar Saros 147 |
Related eclipses
[edit]Eclipses in 1944
[edit]- A total solar eclipse on January 25.
- A penumbral lunar eclipse on February 9.
- A penumbral lunar eclipse on July 6.
- An annular solar eclipse on July 20.
- A penumbral lunar eclipse on August 4.
- A penumbral lunar eclipse on December 29.
Metonic
[edit]- Followed by: Lunar eclipse of April 23, 1948
Tzolkinex
[edit]- Preceded by: Lunar eclipse of May 25, 1937
- Followed by: Lunar eclipse of August 17, 1951
Half-Saros
[edit]- Preceded by: Solar eclipse of June 30, 1935
- Followed by: Solar eclipse of July 11, 1953
Tritos
[edit]- Preceded by: Lunar eclipse of August 5, 1933
- Followed by: Lunar eclipse of June 5, 1955
Lunar Saros 109
[edit]- Preceded by: Lunar eclipse of June 25, 1926
- Followed by: Lunar eclipse of July 17, 1962
Inex
[edit]- Preceded by: Lunar eclipse of July 26, 1915
- Followed by: Lunar eclipse of June 15, 1973
Triad
[edit]- Preceded by: Lunar eclipse of September 4, 1857
- Followed by: Lunar eclipse of May 7, 2031
Lunar eclipses of 1944–1947
[edit]| Descending node | Ascending node | |||||
|---|---|---|---|---|---|---|
| Saros | Date viewing |
Type chart |
Saros | Date viewing |
Type chart | |
| 109 | 1944 Jul 06
|
Penumbral
|
114 | 1944 Dec 29
|
Penumbral
| |
| 119 | 1945 Jun 25
|
Partial
|
124 | 1945 Dec 19
|
Total
| |
| 129 | 1946 Jun 14
|
Total
|
134 | 1946 Dec 08
|
Total
| |
| 139 | 1947 Jun 03
|
Partial
|
144 | 1947 Nov 28
|
Penumbral
| |
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).[5] This lunar eclipse is related to two total solar eclipses of Solar Saros 116.
| June 30, 1935 | July 11, 1953 |
|---|---|
|
|
See also
[edit]Notes
[edit]- ^ "July 5–6, 1944 Penumbral Lunar Eclipse". timeanddate. Retrieved 19 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 19 December 2024.
- ^ "Penumbral Lunar Eclipse of 1944 Jul 06" (PDF). NASA. Retrieved 19 December 2024.
- ^ "Penumbral Lunar Eclipse of 1944 Jul 06". EclipseWise.com. Retrieved 19 December 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 1944 Jul 06 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
_(cropped).jpg)
 | This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it. |