June 2011 lunar eclipse

June 2011 lunar eclipse

Total eclipse
Totality as viewed from Dar es Salaam, Tanzania, 19:28 UTC
Date	June 15, 2011
Gamma	0.0897
Magnitude	1.7014
Saros cycle	130 (34 of 72)
Totality	100 minutes, 13 seconds
Partiality	219 minutes, 17 seconds
Penumbral	336 minutes, 4 seconds
Contacts (UTC) P1 17:24:37 U1 18:22:57 U2 19:22:29 Greatest 20:12:36 U3 21:02:42 U4 22:02:14 P4 23:00:41
← December 2010 December 2011 →

A total lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, June 15, 2011,^[1] with an umbral magnitude of 1.7014. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 4.1 days after perigee (on June 11, 2011, at 21:40 UTC), the Moon's apparent diameter was larger.^[2]

This was a relatively rare central lunar eclipse, where the Moon crossed the center of the Earth's shadow. The last time a lunar eclipse was closer to the center of the Earth's shadow was on July 16, 2000. The next central total lunar eclipse occurred on July 27, 2018.

The eclipse was completely visible over east Africa, Antarctica, and west, central, and south Asia, seen rising over Europe, west Africa, and South America and setting over east Asia and Australia.^[3]

In western Asia, Australia, and the Philippines, the lunar eclipse was visible just before sunrise.^[4] It was very visible in the clear and cloudless night sky throughout eastern and southeast Asia. Africa, far eastern Russia and Europe witnessed the whole event even in the late stages (as in partial lunar eclipse). The Americas (including North and northwestern South America) missed the eclipse completely (except in most areas) because it occurred at moonset.

	Hourly motion shown right to left	The Moon's hourly motion across the Earth's shadow in the constellation of Ophiuchus (north of Scorpius).
Visibility map

• 
  Macau, 18:43 UTC
• 
  Hong Kong, 18:47 UTC
• 
  Vittoriosa, Malta, 18:52 UTC
• 
  Makati, Philippines, 19:21 UTC
• 
  Mangalore, India, 19:32 UTC
• 
  Dompu, Indonesia, 19:35 UTC
• 
  Sofia, Bulgaria, 19:42 UTC
• 
  Tehran, Iran, 19:44 UTC
• 
  Abu Dhabi, U.A.E., 19:53 UTC
• 
  Johannesburg, South Africa, 22:03 UTC
• 
  Marseille, France, 20:07 UTC
• 
  Slovenska Bistrica, Slovenia, 20:58 UTC
• 
  Deva, Romania, 21:01 UTC
• 
  Palermo, Italy, 21:04 UTC
• 
  Perth, Australia, ~21:10 UTC
• 
  Germering, Germany, 21:22 UTC
• 
  Salto, São Paulo, 21:23 UTC
• 
  Lisbon, Portugal, 21:35 UTC
• 
  Bærum, Norway, 21:37 UTC
• 
  Tbilisi, Georgia, 21:45 UTC
• 
  Budapest, Hungary, 21:50 UTC
• 
  Vienna, Austria
• 
  Sobotin, Czech republic
• 
  Animation from Pagny-le-Château, France
• 
  Athens, Greece
• 
  Animation from Novosibirsk, Russia
• 
  Córdoba, Spain

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.^[5]

June 15, 2011 Lunar Eclipse Parameters

Parameter	Value
Penumbral Magnitude	2.68833
Umbral Magnitude	1.70136
Gamma	0.08968
Sun Right Ascension	05h35m33.6s
Sun Declination	+23°19'06.1"
Sun Semi-Diameter	15'44.7"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	17h35m32.3s
Moon Declination	-23°13'51.6"
Moon Semi-Diameter	15'57.2"
Moon Equatorial Horizontal Parallax	0°58'33.0"
ΔT	66.5 s

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.

Eclipse season of June–July 2011

June 1 Descending node (new moon)	June 15 Ascending node (full moon)	July 1 Descending node (new moon)
Partial solar eclipse Solar Saros 118	Total lunar eclipse Lunar Saros 130	Partial solar eclipse Solar Saros 156

• A partial solar eclipse on January 4.
• A partial solar eclipse on June 1.
• A total lunar eclipse on June 15.
• A partial solar eclipse on July 1.
• A partial solar eclipse on November 25.
• A total lunar eclipse on December 10.

• Preceded by: Lunar eclipse of August 28, 2007
• Followed by: Lunar eclipse of April 4, 2015

• Preceded by: Lunar eclipse of May 4, 2004
• Followed by: Lunar eclipse of July 27, 2018

• Preceded by: Solar eclipse of June 10, 2002
• Followed by: Solar eclipse of June 21, 2020

• Preceded by: Lunar eclipse of July 16, 2000
• Followed by: Lunar eclipse of May 16, 2022

• Preceded by: Lunar eclipse of June 4, 1993
• Followed by: Lunar eclipse of June 26, 2029

• Preceded by: Lunar eclipse of July 6, 1982
• Followed by: Lunar eclipse of May 26, 2040

• Preceded by: Lunar eclipse of August 14, 1924
• Followed by: Lunar eclipse of April 15, 2098

This eclipse is the center of nine lunar eclipses in a short-lived series. Each eclipse in the series repeats after one semester (6 lunations or 177 days) occurring at alternating nodes.

Lunar eclipse series sets from 2009–2013
Ascending node					Descending node
Saros # Photo	Date Viewing	Type chart	Gamma		Saros # Photo	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
Last set	2009 Aug 06				Last set	2009 Feb 9
Next set	2013 Apr 25				Next set	2013 Oct 18

Lunar saros series 130, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 56 umbral lunar eclipses (42 partial lunar eclipses and 14 total lunar eclipses). Solar Saros 137 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

Greatest	First
The greatest eclipse of the series will occur on 2029 Jun 26, lasting 102 minutes.[6]	Penumbral	Partial	Total	Central
	1416 Jun 10	1560 Sep 4	1921 Apr 22	1957 May 13
	Last
	Central	Total	Partial	Penumbral
	2083 Jul 29	2155 Sep 11	2552 May 10	2678 Jul 26

1901–2200

1903 Apr 12		1921 Apr 22		1939 May 3
1957 May 13		1975 May 25		1993 Jun 4
2011 Jun 15		2029 Jun 26		2047 Jul 7
2065 Jul 17		2083 Jul 29

The tritos series repeats 31 days short of 11 years at alternating nodes. Sequential events have incremental Saros cycle indices.

This series produces 23 total eclipses between June 22, 1880 and August 9, 2120.

Tritos eclipse series (subset 1901–2100)

Ascending node				Descending node
Saros	Date Viewing	Type chart		Saros	Date Viewing	Type chart
120	1902 Apr 22	Total		121	1913 Mar 22	Total
122	1924 Feb 20	Total		123	1935 Jan 19	Total
124	1945 Dec 19	Total		125	1956 Nov 18	Total
126	1967 Oct 18	Total		127	1978 Sep 16	Total
128	1989 Aug 17	Total		129	2000 Jul 16	Total
130	2011 Jun 15	Total		131	2022 May 16	Total
132	2033 Apr 14	Total		133	2044 Mar 13	Total
134	2055 Feb 11	Total		135	2066 Jan 11	Total
136	2076 Dec 10	Total		137	2087 Nov 10	Total
138	2098 Oct 10	Total

The inex series repeats eclipses 20 days short of 29 years, repeating on average every 10571.95 days. This period is equal to 358 lunations (synodic months) and 388.5 draconic months. Saros series increment by one on successive Inex events and repeat at alternate ascending and descending lunar nodes.

This period is 383.6734 anomalistic months (the period of the Moon's elliptical orbital precession). Despite the average 0.05 time-of-day shift between subsequent events, the variation of the Moon in its elliptical orbit at each event causes the actual eclipse time to vary significantly. It is a part of Lunar Inex series 39.

All events in this series listed below and more are total lunar eclipses.

Inex series from 1000 to 2500 AD

Ascending node		Descending node		Ascending node		Descending node
Saros	Date	Saros	Date	Saros	Date	Saros	Date
96	1027 Apr 23	97	1056 Apr 2	98	1085 Mar 14	99	1114 Feb 21
100	1143 Feb 1	101	1172 Jan 13	102	1200 Dec 22	103	1229 Dec 2
104	1258 Nov 12	105	1287 Oct 22	106	1316 Oct 2	107	1345 Sep 12
108	1374 Aug 22	109	1403 Aug 2	110	1432 Jul 13	111	1461 Jun 22
112	1490 Jun 2	113	1519 May 14	114	1548 Apr 22	115	1577 Apr 2
116	1606 Mar 24	117	1635 Mar 3	118	1664 Feb 11	119	1693 Jan 22
120	1722 Jan 2	121	1750 Dec 13	122	1779 Nov 23	123	1808 Nov 3
124	1837 Oct 13	125	1866 Sep 24	126	1895 Sep 4	127	1924 Aug 14
128	1953 Jul 26	129	1982 Jul 6	130	2011 Jun 15	131	2040 May 26
132	2069 May 6	133	2098 Apr 15	134	2127 Mar 28	135	2156 Mar 7
136	2185 Feb 14	137	2214 Jan 27	138	2243 Jan 7	139	2271 Dec 17
140	2300 Nov 27	141	2329 Nov 7	142	2358 Oct 18	143	2387 Sep 28
144	2416 Sep 7	145	2445 Aug 17	146	2474 Jul 29

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[7] This lunar eclipse is related to two annular solar eclipses of Solar Saros 137.

June 10, 2002	June 21, 2020

• List of lunar eclipses and List of 21st-century lunar eclipses
• December 2010 lunar eclipse
• December 2011 lunar eclipse
• File:2011-06-15 Lunar Eclipse Sketch.gif Chart
• Solar eclipse

• Bao-Lin Liu, Canon of Lunar Eclipses 1500 B.C.-A.D. 3000, 1992

• Live-webcast of the lunar eclipse on 15 June 2011, University of Applied Sciences Offenburg/Germany
• Live Free Lunar eclipse webcast & hands-on lunar eclipse experiments: 2011-06-15 Archived 29 June 2011 at the Wayback Machine
• Live eclipse webcasts, Ciclope group/Technical University of Madrid
• Live eclipse webcasts, Sky Watchers Association of North Bengal
• Hermit eclipse: 2011-06-15
• NASA: Lunar Eclipses: Past and Future
  • 2011 Jun 15 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
  • Index to Five Millennium Catalog of Lunar Eclipses, −1999 to +3000 (2000 BCE to 3000 CE)
    • Eclipses: 2001 to 2100^{[dead link‍]}
• Live webcast by Tübitak Archived 28 August 2011 at the Wayback Machine – the Turkish National Observatory
• Live webcast from the SLOOH Space Camera and Google Earth. The eclipse stages are also being incorporated into a Google doodle operating during the eclipse.

Webcast

• The Central Lunar Eclipse was shown live through WEBCAST – By Sky Watchers Association of North Bengal(SWAN) Siliguri, West Bengal [1] or [2]
• By Eclipse Chaser Athaenium New Delhi [3]
• By Astronation.net [4] Archived 16 June 2011 at the Wayback Machine
• By Ciclope group and Shelios [5]