A penumbral lunar eclipse took place on Sunday, January 31, 1999, the first of two lunar eclipses in 1999.
This was a relatively rare total penumbral lunar eclipse with the moon passing entirely within the penumbral shadow without entering the darker umbral shadow. [1]
This simulated view compares this penumbral eclipse (left) to the full moon (right) as it appeared an hour before the eclipse.
| Lunar eclipse series sets from 1998–2002 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
| 109 | 1998 Aug 08  | penumbral | 1.4876 | 114 | 1999 Jan 31  | penumbral | -1.0190 | |
| 119 | 1999 Jul 28  | partial | 0.7863 | 124 | 2000 Jan 21  | total | -0.2957 | |
| 129 | 2000 Jul 16  | total | 0.0302 | 134 | 2001 Jan 09  | total | 0.3720 | |
| 139 | 2001 Jul 05  | partial | -0.7287 | 144 | 2001 Dec 30  | penumbral | 1.0732 | |
| 149 | 2002 Jun 24  | penumbral | -1.4440 | |||||
| Last set | 1998 Sep 06 | Last set | 1998 Mar 13 | |||||
| Next set | 2002 May 26 | Next set | 2002 Nov 20 | |||||
Lunar Saros series 114, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 13 total lunar eclipses.
First Penumbral Lunar Eclipse: 0971 May 13
First Partial Lunar Eclipse: 1115 Aug 07
First Total Lunar Eclipse: 1458 Feb 28
First Central Lunar Eclipse: 1530 Apr 12
Greatest Eclipse of Lunar Saros 114: 1584 May 24
Last Central Lunar Eclipse: 1638 Jun 26
Last Total Lunar Eclipse: 1674 Jul 17
Last Partial Lunar Eclipse: 1890 Nov 26
Last Penumbral Lunar Eclipse: 2233 Jun 22
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). [2] This lunar eclipse is related to two annular solar eclipses of Solar Saros 121.
| January 26, 1990 | February 7, 2008 |
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A total lunar eclipse took place on Sunday, November 9, 2003, the second of two total lunar eclipses in 2003, the first being on May 16, 2003. It is the first total lunar eclipse of 21st century which happened on a micromoon day. The Moon barely edged into total eclipse for 23 minutes and 12.5 seconds. With the Moon just 1.969% of its diameter into the Earth's umbral shadow, the Moon may have been quite bright, but even so, this should have been worth seeing. The partial eclipse lasted for 3 hours, 32 minutes and 10 seconds. Occurring only 1.4 days before apogee, the Moon's apparent diameter was 6.4% smaller than average.
A penumbral lunar eclipse took place on 6 August 2009, the third of four lunar eclipses in 2009. The moon's small entry into the Earth's penumbral shadow produced an extremely subtle dimming of the moon's southern edge, difficult to observe visually.
This partial lunar eclipse was visible on 31 December 2009. It was the last and largest of four minor lunar eclipses in 2009. This lunar eclipse is also notable, because it occurred during a blue moon. The next eclipse on New Year's Eve and blue moon will occur on 31 December 2028.
A penumbral lunar eclipse took place on Monday, June 24, 2002, the second of three lunar eclipses in 2002. This penumbral eclipse was visibly imperceptible due to the small entry into the southern penumbral shadow.
A penumbral lunar eclipse took place on Sunday, December 30, 2001, the last of three lunar eclipses in 2001.
A penumbral lunar eclipse took place at the Moon's ascending node on 11 February 2017, the first of two lunar eclipses in 2017. It was not quite a total penumbral lunar eclipse. It occurred the same day as comet 45P/Honda–Mrkos–Pajdušáková made a close approach to Earth. It also occurred on the Lantern Festival, the first since 9 February 2009. Occurring only 4.4 days after perigee, the moon's apparent diameter was larger.
A partial lunar eclipse took place on Saturday, June 25, 1983, the first of two lunar eclipses in 1983 with an umbral eclipse magnitude of 0.33479. A partial lunar eclipse happens when the Earth moves between the Sun and the Full Moon, but they are not precisely aligned. Only part of the Moon's visible surface moves into the dark part of the Earth's shadow. A partial lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a straight line in space. When that happens, a small part of the Moon's surface is covered by the darkest, central part of the Earth's shadow, called the umbra. The rest of the Moon is covered by the outer part of the Earth's shadow called the penumbra. The Earth's shadow on the moon was clearly visible in this eclipse, with 33% of the Moon in shadow; the partial eclipse lasted for 2 hours and 15 minutes.
A partial lunar eclipse took place on Saturday, December 21, 1991, the last of four lunar eclipses in 1991. The moon grazed the northern edge of the umbral shadow.
A penumbral lunar eclipse took place on Thursday, March 3, 1988, the first of two lunar eclipses in 1988, the second being on August 27, 1988. Earlier sources compute this as a 0.3% partial eclipse lasting under 14 minutes, and newest calculations list it as a penumbral eclipse that never enters the umbral shadow. In a rare total penumbral eclipse, the entire Moon was partially shaded by the Earth, and the shading across the Moon should have been quite visible at maximum eclipse. The penumbral phase lasted for 4 hours, 53 minutes and 50.6 seconds in all, though for most of it, the eclipse was extremely difficult or impossible to see. The Moon was 2.2 days after apogee, making it 6.1% smaller than average.
A penumbral lunar eclipse took place on Thursday, June 27, 1991, the second of four lunar eclipses in 1991. The moon entered the Earth's penumbra for about 3 hours, and was difficult to see. This lunar eclipse is the predecessor of the Solar eclipse of July 11, 1991.
A penumbral lunar eclipse took place on Tuesday, April 14, 1987, the first of two lunar eclipses in 1987, the second being on October 7, 1987. This subtle penumbral eclipse may have been visible to a skilled observer at maximum eclipse. 77.703% of the Moon's disc was partially shaded by the Earth, which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 3 hours, 54 minutes and 12.8 seconds. The Moon was just 4.6 days before perigee, making it 0.5% larger than average.
A penumbral lunar eclipse took place on Tuesday, December 20, 1983, the second of two lunar eclipses in 1983. At the maximum eclipse, 89% of the Moon's disk was partially shaded by the Earth, which caused a slight shadow gradient across its disc; this subtle effect may have been visible to careful observers. No part of the Moon was in complete shadow. The eclipse lasted 4 hours and 2 minutes overall.
A penumbral lunar eclipse took place on Tuesday, January 20, 1981, the first of two lunar eclipses in 1981. In a rare total penumbral eclipse, the entire Moon was partially shaded by the Earth, and the shading across the Moon should have been quite visible at maximum eclipse. The penumbral phase lasted for 4 hours and 24 minutes in all, though for most of it, the eclipse was extremely difficult or impossible to see. The moon's apparent diameter was larger because the eclipse occurred 5.2 days after perigee.
A penumbral lunar eclipse took place on Sunday, July 27, 1980, the second of three penumbral lunar eclipses in 1980. This very subtle penumbral eclipse was essentially invisible to the naked eye; though it lasted 2 hours, 17 minutes and 36.3 seconds, just 25.354% of the Moon's disc was in partial shadow. The moon passed in the northern edge of the Earth's penumbral shadow, and was the 70th lunar eclipse of Saros cycle 109.
A penumbral lunar eclipse took place on 30 November 2020. A penumbral lunar eclipse occurs at full moon when the Moon passes through Earth's penumbral shadow.
A penumbral lunar eclipse took place at the Moon's descending node of the orbit on Tuesday, August 26, 1980, the last of three penumbral lunar eclipses in 1980 with a penumbral magnitude of 0.70891. This subtle penumbral eclipse may have been visible to a skilled observer at maximum eclipse. 70.891% of the Moon's disc was partially shaded by the Earth, which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 3 hours, 34 minutes and 26 seconds.
A partial lunar eclipse took place on Thursday, May 13, 1976, the first of two lunar eclipses in 1976, the second being a penumbral lunar eclipse on November 6, 1976. At maximum eclipse, a small bite out of the Moon should have been visible. The eclipse lasted for 1 hour, 15 minutes and 23.8 seconds, with just 12.17% of the Moon in shadow at maximum. Occurring only 1.1 days after perigee, the Moon's apparent diameter 5.4% larger than average.
A penumbral lunar eclipse took place on Wednesday, December 8, 1965. At maximum eclipse, 88% of the Moon's disc was partially shaded by the Earth, which caused a slight shadow gradient across its disc; this subtle effect may have been visible to careful observers. No part of the Moon was in complete shadow. The eclipse lasted 4 hours and 1 minute overall.
A penumbral lunar eclipse took place on Wednesday, January 9, 1963, the first of three lunar eclipses in 1963.
A partial lunar eclipse will take place on June 26, 2048. The Moon will be strikingly shadowed in this deep partial eclipse lasting 2 hours and 39 minutes, with 63.88% of the Moon in darkness at maximum.
