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June 2010 lunar eclipse

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June 2010 lunar eclipse
Partial eclipse
Partiality as viewed from Canberra, Australia, 11:31 UTC
DateJune 26, 2010
Gamma−0.7091
Magnitude0.5383
Saros cycle120 (58 of 84)
Partiality162 minutes, 52 seconds
Penumbral322 minutes, 7 seconds
Contacts (UTC)
P18:57:24
U110:16:58
Greatest11:38:27
U412:59:50
P414:19:31

A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, June 26, 2010,[1] with an umbral magnitude of 0.5383. 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 4.7 days before apogee (on July 1, 2010, at 6:10 UTC), the Moon's apparent diameter was smaller.[2]

Visibility

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The eclipse was completely visible over much of Australia and the Pacific Ocean, seen rising over Asia and setting over North and South America.[3]


Hourly motion shown right to left
The Moon's hourly motion across the Earth's shadow in the constellation of Sagittarius.

Visibility map

Images

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NASA chart of the eclipse
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Timing

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The eclipse was seen before sunrise on Saturday morning setting over western North and South America.

Times of over North America
Event PDT
(UTC−7) 		MDT
(UTC−6) 		CDT
(UTC−5) 		EDT
(UTC−4) 		UTC
Start penumbral (P1) 1:57 a.m. 2:57 a.m. 3:57 a.m. 4:57 a.m. 8:57 a.m.
Start umbral (U1) 3:17 a.m. 4:17 a.m. 5:17 a.m. 6:17 a.m. 10:17 a.m.
Greatest eclipse 4:38 a.m. 5:38 a.m. Set Set 11:38 a.m.
End umbral (U4) Set Set Set Set 1:00 p.m.
End penumbral (P4) Set Set Set Set 2:20 p.m.

Eclipse details

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Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

June 26, 2010 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 1.57888
Umbral Magnitude 0.53830
Gamma −0.70911
Sun Right Ascension 06h20m48.6s
Sun Declination +23°21'07.6"
Sun Semi-Diameter 15'44.1"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 18h21m11.8s
Moon Declination -24°00'06.9"
Moon Semi-Diameter 15'07.3"
Moon Equatorial Horizontal Parallax 0°55'29.7"
ΔT 66.2 s

Eclipse season

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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.

Eclipse season of June–July 2010
June 26
Ascending node (full moon)
 July 11
Descending node (new moon)
Partial lunar eclipse
Lunar Saros 120		 Total solar eclipse
Solar Saros 146
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Eclipses in 2010

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Lunar Saros 120

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Inex

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Triad

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Lunar eclipses of 2009–2013

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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 February 9, 2009 and August 6, 2009 occur in the previous lunar year eclipse set, and the lunar eclipses on April 25, 2013 (partial) and October 18, 2013 (penumbral) occur in the next lunar year eclipse set.

Lunar eclipse series sets from 2009 to 2013
Ascending node   Descending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
110 2009 Jul 07
 Penumbral
 −1.4916 115
 2009 Dec 31
 Partial
 0.9766
120
 2010 Jun 26
 Partial
 −0.7091 125
 2010 Dec 21
 Total
 0.3214
130
 2011 Jun 15
 Total
 0.0897 135
 2011 Dec 10
 Total
 −0.3882
140
 2012 Jun 04
 Partial
 0.8248 145 2012 Nov 28
 Penumbral
 −1.0869
150 2013 May 25
 Penumbral
 1.5351

Metonic series

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The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will be in nearly the same location relative to the background stars.

Ascending node Descending node
  1. 1991 Jun 27 - penumbral (110)
  2. 2010 Jun 26 - partial (120)
  3. 2029 Jun 26 - total (130)
  4. 2048 Jun 26 - partial (140)
  5. 2067 Jun 27 - penumbral (150)
  1. 1991 Dec 21 - partial (115)
  2. 2010 Dec 21 - total (125)
  3. 2029 Dec 20 - total (135)
  4. 2048 Dec 20 - partial (145)

Saros 120

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This eclipse is a part of Saros series 120, repeating every 18 years, 11 days, and containing 83 events. The series started with a penumbral lunar eclipse on October 16, 1000. It contains partial eclipses from May 31, 1379 through August 4, 1487; total eclipses from August 14, 1505 through May 14, 1938; and a second set of partial eclipses from May 24, 1956 through July 28, 2064. The series ends at member 83 as a penumbral eclipse on April 7, 2479.

The longest duration of totality was produced by member 43 at 104 minutes, 55 seconds on January 24, 1758. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]

Greatest First
The greatest eclipse of the series occurred on 1758 Jan 24, lasting 104 minutes, 55 seconds.[7] Penumbral Partial Total Central
1000 Oct 16
 1379 May 31
 1505 Aug 14
 1559 Sep 16
Last
Central Total Partial Penumbral
1902 Apr 22
 1938 May 14
 2064 Jul 28
 2479 Apr 07

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.

Tritos series

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This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1801 and 2200
1803 Feb 06
(Saros 101) 		1814 Jan 06
(Saros 102) 		1824 Dec 06
(Saros 103) 		1846 Oct 04
(Saros 105)
1857 Sep 04
(Saros 106) 		1868 Aug 03
(Saros 107) 		1879 Jul 03
(Saros 108) 		1890 Jun 03
(Saros 109) 		1901 May 03
(Saros 110)
1912 Apr 01
(Saros 111) 		1923 Mar 03
(Saros 112) 		1934 Jan 30
(Saros 113) 		1944 Dec 29
(Saros 114) 		1955 Nov 29
(Saros 115)
1966 Oct 29
(Saros 116) 		1977 Sep 27
(Saros 117) 		1988 Aug 27
(Saros 118) 		1999 Jul 28
(Saros 119) 		2010 Jun 26
(Saros 120)
2021 May 26
(Saros 121) 		2032 Apr 25
(Saros 122) 		2043 Mar 25
(Saros 123) 		2054 Feb 22
(Saros 124) 		2065 Jan 22
(Saros 125)
2075 Dec 22
(Saros 126) 		2086 Nov 20
(Saros 127) 		2097 Oct 21
(Saros 128) 		2108 Sep 20
(Saros 129) 		2119 Aug 20
(Saros 130)
2130 Jul 21
(Saros 131) 		2141 Jun 19
(Saros 132) 		2152 May 18
(Saros 133) 		2163 Apr 19
(Saros 134) 		2174 Mar 18
(Saros 135)
2185 Feb 14
(Saros 136) 		2196 Jan 15
(Saros 137)

Half-Saros cycle

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A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 127.

June 21, 2001 July 2, 2019

See also

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Notes

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  1. ^ "June 25–26, 2010 Partial Lunar Eclipse". timeanddate. Retrieved 15 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 15 November 2024.
  3. ^ "Partial Lunar Eclipse of 2010 Jun 26" (PDF). NASA. Retrieved 15 November 2024.
  4. ^ "Partial Lunar Eclipse of 2010 Jun 26". EclipseWise.com. Retrieved 15 November 2024.
  5. ^ 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.
  6. ^ "NASA - Catalog of Lunar Eclipses of Saros 120". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 120
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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Wikimedia Commons has media related to Lunar eclipse of 2010 June 26.

Photos:

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