February 2017 lunar eclipse
Penumbral eclipse | |||||||||
Date | February 11, 2017 | ||||||||
---|---|---|---|---|---|---|---|---|---|
Gamma | −1.0254 | ||||||||
Magnitude | −0.0342 | ||||||||
Saros cycle | 114 (59 of 71) | ||||||||
Penumbral | 259 minutes, 10 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, February 11, 2017,[1] with an umbral magnitude of −0.0342. 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. Occurring about 4.6 days before perigee (on February 6, 2017, at 9:00 UTC), the Moon's apparent diameter was larger.[2]
This eclipse occurred the same day as comet 45P/Honda–Mrkos–Pajdušáková made a close approach to Earth (0.08318 AU). It also occurred on the Lantern Festival, the first eclipse to do so since February 9, 2009.
Visibility
[edit]The eclipse was completely visible over northeastern North America, eastern South America, Europe, Africa, and west Asia, seen rising over much of North America and western South America and setting over south and east Asia.[3]
Hourly motion shown right to left | |
Visibility map |
Gallery
[edit]-
Popayán, Colombia, 23:43 UTC (10 February)
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Kissimmee, Florida, 0:00 UTC
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Tampa, Florida, 0:11 UTC
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Time lapse images from Melbourne, Florida
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Bracciano, Italy, 0:29 UTC
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Macon, Georgia, 0:38 UTC
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Naperville, Illinois, 1:23 UTC
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Innsbruck, Austria, ~2:00 UTC
Eclipse details
[edit]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
Parameter | Value |
---|---|
Penumbral Magnitude | 0.98956 |
Umbral Magnitude | −0.03421 |
Gamma | −1.02548 |
Sun Right Ascension | 21h39m19.2s |
Sun Declination | -14°01'07.8" |
Sun Semi-Diameter | 16'12.3" |
Sun Equatorial Horizontal Parallax | 08.9" |
Moon Right Ascension | 09h38m22.6s |
Moon Declination | +13°03'10.2" |
Moon Semi-Diameter | 15'49.8" |
Moon Equatorial Horizontal Parallax | 0°58'05.6" |
ΔT | 68.3 s |
Eclipse season
[edit]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.
February 11 Ascending node (full moon) |
February 26 Descending node (new moon) |
---|---|
Penumbral lunar eclipse Lunar Saros 114 |
Annular solar eclipse Solar Saros 140 |
Related eclipses
[edit]Eclipses in 2017
[edit]- A penumbral lunar eclipse on February 11.
- An annular solar eclipse on February 26.
- A partial lunar eclipse on August 7.
- A total solar eclipse on August 21.
Metonic
[edit]- Preceded by: Lunar eclipse of April 25, 2013
- Followed by: Lunar eclipse of November 30, 2020
Tzolkinex
[edit]- Preceded by: Lunar eclipse of December 31, 2009
- Followed by: Lunar eclipse of March 25, 2024
Half-Saros
[edit]- Preceded by: Solar eclipse of February 7, 2008
- Followed by: Solar eclipse of February 17, 2026
Tritos
[edit]- Preceded by: Lunar eclipse of March 14, 2006
- Followed by: Lunar eclipse of January 12, 2028
Lunar Saros 114
[edit]- Preceded by: Lunar eclipse of January 31, 1999
- Followed by: Lunar eclipse of February 22, 2035
Inex
[edit]- Preceded by: Lunar eclipse of March 3, 1988
- Followed by: Lunar eclipse of January 22, 2046
Triad
[edit]- Preceded by: Lunar eclipse of April 13, 1930
- Followed by: Lunar eclipse of December 13, 2103
Lunar eclipses of 2016–2020
[edit]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 114
[edit]It is part of Saros cycle 114.
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
Half-Saros cycle
[edit]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two annular solar eclipses of Solar Saros 121.
February 7, 2008 | February 17, 2026 |
---|---|
See also
[edit]References
[edit]- ^ "February 10–11, 2017 Penumbral Lunar Eclipse". timeanddate. Retrieved 16 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 16 November 2024.
- ^ "Penumbral Lunar Eclipse of 2017 Feb 11" (PDF). NASA. Retrieved 17 November 2024.
- ^ "Penumbral Lunar Eclipse of 2017 Feb 11". EclipseWise.com. Retrieved 17 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 2017 Feb 11 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
- 11 Feb 2017 - Penumbral Lunar Eclipse - Penumbral Lunar Eclipse
- Pakistan to witness lunar eclipse on February 11