July 2018 lunar eclipse
Total eclipse
Contacts (UTC) | |
---|---|
P1 | 17:14:49 |
U1 | 18:24:27 |
U2 | 19:30:15 |
Greatest | 20:21:44 |
U3 | 21:13:12 |
U4 | 22:19:00 |
P4 | 23:28:37 |
A total lunar eclipse occurred at the Moon's descending node on 27 July 2018. The Moon passed through the center of Earth's shadow in what was the first central lunar eclipse since 15 June 2011. It was also the second total lunar eclipse in 2018, after the one on 31 January. It was the longest total lunar eclipse of the 21st century, but not the longest in the 3rd millennium. The longest total lunar eclipse of the 3rd millennium will occur on May 12, 2264, lasting 106 minutes and 13.2 seconds, which will be the longest total lunar eclipse since 2000, and the longest one until 3107.
The eclipse occurred when the Moon was near its maximum distance from Earth, which caused the Moon to appear smaller than normal (a phenomenon sometimes called a micromoon),[1][2] and to travel at its slowest speed in its orbit around Earth.[3] This was the longest total lunar eclipse that occurred in the 21st century, but not the longest in the 3rd millennium.[3] Totality lasted one hour and 42.955 minutes,[4][5][6][7] a period "just short of the theoretical limit of a lunar eclipse (one hour and 46.605 minutes)".[8] The Moon remained at least partially in Earth's shadow for three hours 54.55 minutes.[8]
This lunar eclipse coincided with Mars being nearly as close as possible to Earth, a concurrence that happens once every 25,000 years.[6]
Background
A lunar eclipse occurs when the Moon passes within Earth's umbra (shadow). As the eclipse begins, Earth's shadow first darkens the Moon slightly. Then, the Earth's shadow begins to cover part of the Moon, typically turning it a dark red-brown color (the color can vary based on atmospheric conditions). The Moon appears to be reddish because of Rayleigh scattering (the same effect that causes sunsets to appear reddish and the daytime sky to appear blue) and the refraction of that light by Earth's atmosphere into its umbra.[9]
The Moon's brightness is exaggerated within the umbral shadow.[9] The southern portion of the Moon was closest to the center of the shadow, making it the darkest, and most red in appearance.[citation needed]
Visibility
The lunar eclipse was completely visible over Eastern Africa, Southern Africa, Southern Asia and Central Asia, seen rising over South America, Western Africa, and Europe, and setting over Eastern Asia, and Australia.[10]
Visibility map |
Observations
- Animation of the eclipse from Athens, Greece
- Video of the eclipse from Yekaterinburg, Russia
- Nanjing, China, 18:25 UTC
- Asunción, Paraguay 19:10 UTC
- Rethymnon, Greece 19:14 UTC
- Johannesburg, South Africa, 19:16 UTC
- Guangzhou, China, 19:20 UTC
- Limassol, Cyprus, 19:27 UTC
- Tashkent, Uzbekistan, 19:32 UTC
- Jerusalem, Israel, 19:33 UTC
- Eclipse with Mars, Fukuoka, Japan, 19:46 UTC
- Davao City, Philippines, 19:52 UTC
- Cracow, Poland, 20:05 UTC
- Chelsea, Victoria, Australia, 20:07 UTC
- Maximum from Banjarmasin, Indonesia, 20:21 UTC
- Tuen Mun, Hong Kong, 20:47 UTC
- Huittinen, Finland, 21:05 UTC
- Graz, Austria, 21:12 UTC
- Toulouse, France, 21:17 UTC
- Berlin, Germany, 21:19 UTC
- Torino, Italy, 21:19 UTC
- Hamburg, Germany, 21:23 UTC
- Brastad, Sweden, 21:24 UTC
- León, Spain, 21:27 UTC
Related eclipses
Eclipses of 2018
- A total lunar eclipse on 31 January.
- A partial solar eclipse on 15 February.
- A partial solar eclipse on 13 July.
- A total lunar eclipse on 27 July.
- A partial solar eclipse on 11 August.
Lunar year series
Lunar eclipse series sets from 2016–2020 | ||||||||
---|---|---|---|---|---|---|---|---|
Descending node | Ascending node | |||||||
Saros | Date | Type Viewing | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
109 | 2016 Aug 18 | Penumbral | 1.56406 | 114 | 2017 Feb 11 | Penumbral | −1.02548 | |
119 | 2017 Aug 07 | Partial | 0.86690 | 124 | 2018 Jan 31 | Total | −0.30143 | |
129 | 2018 Jul 27 | Total | 0.11681 | 134 | 2019 Jan 21 | Total | 0.36842 | |
139 | 2019 Jul 16 | Partial | −0.64300 | 144 | 2020 Jan 10 | Penumbral | 1.07270 | |
149 | 2020 Jul 05 | Penumbral | −1.36387 | |||||
Last set | 2016 Sep 16 | Last set | 2016 Mar 23 | |||||
Next set | 2020 Jun 05 | Next set | 2020 Nov 30 |
Saros series
Lunar saros series 129, repeating every 18 years and 11 days, containing 71 events, has 11 total lunar eclipses. The first total lunar eclipse of this series was on May 24, 1910, and last will be on September 8, 2090. The longest occurrence of this series was on July 16, 2000 when totality lasted 106 minutes and 24.6 seconds.
Greatest | First | |||
---|---|---|---|---|
The greatest eclipse of the series occurred on 2000 Jul 16, lasting 106 minutes. | Penumbral | Partial | Total | Central |
1351 Jun 10 | 1513 Sep 15 | 1910 May 24 | 1946 Jun 14 | |
Last | ||||
Central | Total | Partial | Penumbral | |
2036 Aug 7 | 2090 Sep 8 | 2469 Apr 26 | 2613 Jul 24 |
1910 May 24 | 1928 Jun 3 | 1946 Jun 14 | |||
1964 Jun 25 | 1982 Jul 6 | 2000 Jul 16 | |||
2018 Jul 27 | 2036 Aug 7 | 2054 Aug 18 | |||
2072 Aug 28 | 2090 Sep 8 | ||||
It last occurred on July 16, 2000 and will next occur on August 7, 2036.
This is the 38th member of Lunar Saros 129. The previous event was the July 2000 lunar eclipse. The next event is the August 2036 lunar eclipse. Lunar Saros 129 contains 11 total lunar eclipses between 1910 and 2090. Solar Saros 136 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[11] This lunar eclipse is related to two total solar eclipses of Solar Saros 136.
22 July 2009 | 2 August 2027 |
---|---|
Related eclipses
Inex
- Preceded: Lunar eclipse of August 17, 1989
- Followed: Lunar eclipse of July 7, 2047
Tritos
- Preceded: Lunar eclipse of August 28, 2007
- Followed: Lunar eclipse of June 26, 2029
Tzolkinex
- Preceded: Lunar eclipse of June 15, 2011
- Followed: Lunar eclipse of September 7, 2025
Half-Saros cycle
- Preceded: Solar eclipse of July 22, 2009
- Followed: Solar eclipse of August 2, 2027
See also
Notes
- ^ "What Is a Micromoon?". Timeanddate.com. Stavanger, Norway: Time and Date AS. n.d. Retrieved 27 July 2018.
- ^ Mosher, Dave; Gal, Shayanne (27 July 2018). "The longest total lunar eclipse in a century is about to happen — here's how Earth will color the moon blood-red". Business Insider. Retrieved 27 July 2018.
- ^ a b McClure, Bruce (27 July 2018). "Century's Longest Lunar Eclipse July 27". EarthSky. Retrieved 27 July 2018.
- ^ Space (29 December 2017). "In 2018 the longest lunar eclipse will take place in 100 years". Earth Chronicles. Retrieved 27 July 2018.
- ^ Resnick, Brian (27 July 2018). "Watch: The longest 'blood moon' lunar eclipse of the century". Vox. Retrieved 27 July 2018.
- ^ a b Nunamaker, Susan Sun (27 July 2018). "Century's Longest Lunar Eclipse, Blood Moon 2018, Today, Will Last 103 Minutes". Windermere Sun. Retrieved 27 July 2018.
- ^ "Два редких астрономических явления можно будет наблюдать 27 июля". TASS (in Russian). 27 July 2018. Retrieved 27 July 2018.
- ^ a b Lyons, Kate (27 July 2018). "Blood moon: All you need to know about this week's lunar eclipse". The Guardian. Retrieved 27 July 2018.
- ^ a b Espenak, Fred; Meeus, Jean (27 July 2018). "Visual Appearance of Lunar Eclipses". NASA Eclipse Web Site. National Aeronautics and Space Administration. Retrieved 27 July 2018.
- ^ "Eclipse Map — 27 July 2018 Total Lunar Eclipse".
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
- Where to see the eclipse and public events (Go Stargazing) Archived 2 September 2018 at the Wayback Machine
- 2018 Jul 27 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
- Hermit eclipse: 2018-07-27
- Photo Reveals a Lunar Eclipse Like Never Before
- v
- t
- e
by era
by saros series
Partial eclipses
- 1903 Apr
- 1914 Mar
- 1916 Jul
- 1952 Feb
- 1952 Aug
- 1954 Jul
- 1955 Nov
- 1956 May
- 1958 May
- 1959 Mar
- 1961 Mar
- 1961 Aug
- 1963 Jul
- 1965 Jun
- 1970 Feb
- 1970 Aug
- 1972 Jul
- 1973 Dec
- 1974 Jun
- 1976 May
- 1977 Apr
- 1979 Mar
- 1981 Jul
- 1983 Jun
- 1988 Aug
- 1990 Aug
- 1991 Dec
- 1992 Jun
- 1994 May
- 1995 Apr
- 1997 Mar
- 1999 Jul
- 2001 Jul
- 2005 Oct
- 2006 Sep
- 2008 Aug
- 2009 Dec
- 2010 Jun
- 2012 Jun
- 2013 Apr
- 2017 Aug
- 2019 Jul
- 2021 Nov
- 2023 Oct
- → 2024 Sep
- 2026 Aug
- 2028 Jan
- 2028 Jul
- 2030 Jun
- 2034 Sep
- 2035 Aug
- 2037 Jul
- 2039 Jun
- 2039 Nov
- 2041 May
- 2041 Nov
- 2046 Jan
- 2046 Jul
- 2048 Jun
- 2052 Oct
- 2055 Aug
- 2075 Jun
- 2099 Apr
Total eclipses
- 1504 Mar
- 1910 May
- 1913 Sep
- 1920 May
- 1950 Apr
- 1950 Sep
- 1953 Jan
- 1953 Jul
- 1954 Jan
- 1956 Nov
- 1957 May
- 1957 Nov
- 1960 Mar
- 1960 Sep
- 1963 Dec
- 1964 Jun
- 1964 Dec
- 1967 Apr
- 1967 Oct
- 1968 Apr
- 1968 Oct
- 1971 Feb
- 1971 Aug
- 1972 Jan
- 1974 Nov
- 1975 May
- 1975 Nov
- 1978 Mar
- 1978 Sep
- 1979 Sep
- 1982 Jan
- 1982 Jul
- 1982 Dec
- 1985 May
- 1985 Oct
- 1986 Apr
- 1986 Oct
- 1989 Feb
- 1989 Aug
- 1990 Feb
- 1992 Dec
- 1993 Jun
- 1993 Nov
- 1996 Apr
- 1996 Sep
- 1997 Sep
- 2000 Jan
- 2000 Jul
- 2001 Jan
- 2003 May
- 2003 Nov
- 2004 May
- 2004 Oct
- 2007 Mar
- 2007 Aug
- 2008 Feb
- 2010 Dec
- 2011 Jun
- 2011 Dec
- 2014 Apr
- 2014 Oct
- 2015 Apr
- 2015 Sep
- 2018 Jan
- 2018 Jul
- 2019 Jan
- 2021 May
- 2022 May
- 2022 Nov
- → 2025 Mar
- 2025 Sep
- 2026 Mar
- 2028 Dec
- 2029 Jun
- 2029 Dec
- 2032 Apr
- 2032 Oct
- 2033 Apr
- 2033 Oct
- 2036 Feb
- 2036 Aug
- 2037 Jan
- 2040 May
- 2040 Nov
- 2043 Mar
- 2043 Sep
- 2044 Mar
- 2044 Sep
- 2047 Jan
- 2047 Jul
- 2048 Jan
- 2050 May
- 2050 Oct
- 2051 Apr
- 2051 Oct
- 2054 Feb
- 2054 Aug
- 2055 Feb
- 2058 Jun
- 2065 Jul
- 2069 May
- 2072 Aug
- 2076 Jun
- 2083 Jul
- 2084 Jan
- 2087 May
- 2090 Sep
- 2094 Jun
- 2123 Jun
- 2170 May
Penumbral eclipses
- Category
- → symbol denotes next eclipse in series