February 1933 lunar eclipse
{{Short description|Penumbral lunar eclipse February 10, 1933}}
{{Infobox lunar eclipse
| type = penumbral
| image = Lunar eclipse chart close-1933Feb10.png
| caption = The Moon's hourly motion shown right to left
| date = February 10, 1933
| gamma = 1.5600
| magnitude = −1.0268
| saros_ser = 103
| saros_no = 83 of 84
| penumbral = 39 minutes, 34 seconds
| p1 = 12:57:32
| greatest = 13:17:09
| p4 = 13:37:06
| previous = September 1932
| next = March 1933
}}
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Friday, February 10, 1933,{{cite web|title=February 10, 1933 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/1933-february-10|publisher=timeanddate|access-date=16 December 2024}} with an umbral magnitude of −1.0268. 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. The Moon's apparent diameter was near the average diameter because it occurred 6.7 days after apogee (on February 3, 1933, at 21:10 UTC) and 7.9 days before perigee (on February 18, 1933, at 10:50 UTC).{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1933&n=136|publisher=timeanddate|access-date=16 December 2024}}
This eclipse was the first of four penumbral lunar eclipses in 1933, with the others occurring on March 12, August 5, and September 4.
Visibility
The eclipse was completely visible over much of Asia, Australia, and western North America.{{cite web|title=Penumbral Lunar Eclipse of 1933 Feb 10|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1901/LE1933Feb10.pdf|publisher=NASA|access-date=16 December 2024}}
| class=wikitable |
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Penumbral Lunar Eclipse of 1933 Feb 10|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1933Feb10Nprime.html|publisher=EclipseWise.com|access-date=16 December 2024}}
| class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+February 10, 1933 Lunar Eclipse Parameters ! Parameter ! Value |
| Penumbral Magnitude
| 0.01836 |
| Umbral Magnitude
| −1.02680 |
| Gamma
| 1.56004 |
| Sun Right Ascension
| 21h35m02.2s |
| Sun Declination
| -14°22'59.8" |
| Sun Semi-Diameter
| 16'12.3" |
| Sun Equatorial Horizontal Parallax
| 08.9" |
| Moon Right Ascension
| 09h37m33.3s |
| Moon Declination
| +15°43'55.4" |
| Moon Semi-Diameter
| 15'30.3" |
| Moon Equatorial Horizontal Parallax
| 0°56'54.2" |
| ΔT
| 23.9 s |
{{clear}}
Eclipse season
{{See also|Eclipse cycle}}
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.
| class="wikitable"
|+ Eclipse season of February–March 1933 ! February 10 | February 24 Ascending node (new moon) | March 12 Descending node (full moon) |
| 200px | 200px | 200px |
| align=center
| Penumbral lunar eclipse | Annular solar eclipse Solar Saros 129 | Penumbral lunar eclipse Lunar Saros 141 |
Related eclipses
= Eclipses in 1933 =
- A penumbral lunar eclipse on February 10.
- An annular solar eclipse on February 24.
- A penumbral lunar eclipse on March 12.
- A penumbral lunar eclipse on August 5.
- An annular solar eclipse on August 21.
- A penumbral lunar eclipse on September 4.
= Tzolkinex =
- Followed by: Lunar eclipse of March 23, 1940
= Tritos =
- Preceded by: Lunar eclipse of March 13, 1922
= Lunar Saros 103 =
- Preceded by: Lunar eclipse of January 31, 1915
- Followed by: Lunar eclipse of February 21, 1951
= Inex =
- Preceded by: Lunar eclipse of March 2, 1904
= Triad =
- Preceded by: Lunar eclipse of April 11, 1846
= Lunar eclipses of 1933–1936 =
{{Lunar eclipse set 1933-1936}}
= Saros 103 =
This eclipse is a part of Saros series 103, repeating every 18 years, 11 days, and containing 82 or 83 events (depending on the source). The series started with a penumbral lunar eclipse on September 3, 472 AD. It contains partial eclipses from April 19, 851 AD through June 23, 959 AD; total eclipses from July 3, 977 AD through May 3, 1482; and a second set of partial eclipses from May 13, 1500 through July 27, 1608. The series ends at member 82 as a penumbral eclipse on February 10, 1933, though some sources count a possible penumbral eclipse on February 21, 1951 as the last eclipse of the series.
The longest duration of totality was produced by member 36 at 98 minutes, 57 seconds on September 17, 1103. All eclipses in this series occur at the Moon’s descending node of orbit.{{Cite web|url=https://eclipse.gsfc.nasa.gov/LEsaros/LEsaros103.html|title=NASA - Catalog of Lunar Eclipses of Saros 103|website=eclipse.gsfc.nasa.gov}}
| class=wikitable
!Greatest !colspan=4|First |
| rowspan=6 width=180 align=center|The greatest eclipse of the series occurred on 1103 Sep 17, lasting 98 minutes, 57 seconds.[http://www.hermit.org/Eclipse/gen_stats.cgi?mode=query&page=full&qtype=type&body=L&saros=103 Listing of Eclipses of series 103]
!Penumbral !Partial !Total !Central |
| 472 Sep 03 |851 Apr 19 |977 Jul 03 |1031 Aug 05 |
| colspan=4|Last |
|---|
| Central
!Total !Partial !Penumbral |
| 1410 Mar 21 |1482 May 03 |1608 Jul 27 |
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.
| class="wikitable collapsible collapsed"
!colspan=6|Series members 75–83 occur between 1801 and 1951: |
| colspan=2 style="text-align:center;" | 75
!colspan=2 style="text-align:center;" | 76 !colspan=2 style="text-align:center;" | 77 |
|---|
| colspan=2 style="text-align:center;" |1806 Nov 26
| colspan=2 style="text-align:center;" |1824 Dec 06 | colspan=2 style="text-align:center;" |1842 Dec 17 |
| style="text-align:center;"
| | | | | | |
| colspan=2 style="text-align:center;" | 78
!colspan=2 style="text-align:center;" | 79 !colspan=2 style="text-align:center;" | 80 |
| colspan=2 style="text-align:center;" |1860 Dec 28
| colspan=2 style="text-align:center;" |1879 Jan 08 | colspan=2 style="text-align:center;" |1897 Jan 18 |
| style="text-align:center;"
| | | | | | |
| colspan=2 style="text-align:center;" | 81
!colspan=2 style="text-align:center;" | 82 !colspan=2 style="text-align:center;" | 83 |
| colspan=2 style="text-align:center;" |1915 Jan 31
| colspan=2 style="text-align:center;" |1933 Feb 10 | colspan=2 style="text-align:center;" |1951 Feb 21 |
| style="text-align:center;"
|80px |80px |80px |80px |80px |80px |
= Tritos series =
{{Lunar Tritos series July 2009}}
= Inex series =
{{Inex eclipse set info}}
| class="wikitable mw-collapsible mw-collapsed"
!colspan=6| Series members between 1801 and 1933 |
| colspan=2 style="text-align:center;"| 1817 May 01 (Saros 99) |colspan=2 style="text-align:center;"| 1846 Apr 11 |colspan=2 style="text-align:center;"| |
|
| | | | | |
| colspan=2 style="text-align:center;"| 1904 Mar 02 (Saros 102) |colspan=2 style="text-align:center;"| 1933 Feb 10 |
| 80px
|80px |80px |80px |
See also
Notes
{{reflist}}
External links
- {{LEplot1901 link|1933|Feb|10|N}}
{{Lunar eclipses}}
{{DEFAULTSORT:Lunar eclipse 1933-02}}
{{lunar-eclipse-stub}}