August 2017 lunar eclipse

Last updated
August 2017 lunar eclipse
Partial eclipse
Lunar eclipse of 2017 August 7 Kuwait.jpg
Date7 August 2017
Gamma 0.8668
Magnitude 0.2464
Saros cycle 119 (62 of 83)
Partiality115 minutes, 15 seconds
Penumbral300 minutes, 54 seconds
Contacts (UTC)
P115:50:02
U117:22:55
Greatest18:20:28
U419:18:10
P420:50:56

A partial lunar eclipse took place at the Moon's descending node on the evening of 7 August and the morning pre-dawn on 8 August 2017, the second of two lunar eclipses in 2017. The Moon was only slightly covered by the Earth's umbral shadow at maximum eclipse. The Moon's apparent diameter was smaller because the eclipse occurred only 5 days after apogee (Apogee on 2 August 2017).

Contents

The Moon inside the umbral shadow was a subtle red, but hard to see in contrast to the much brighter Moon in the outer penumbral shadow. The Moon looks red because it is illuminated by sunlight refracted through Earth's atmosphere. The blue light is scattered and absorbed by the atmosphere, leaving red light to shine onto the lunar surface. [1]

The solar eclipse of 21 August 2017, occurred fourteen days later, in the same eclipse season (Middle of the eclipse season occurred on 16 August 2017). It was the first total solar eclipse visible in the contiguous United States since the solar eclipse of 26 February 1979.

Visibility

It was visible over eastern Europe, Africa, Asia, and Australia with maximal visibility centered on Indian Ocean.

Lunar eclipse from moon-2017Aug07.png Lunar eclipse chart close-2017Aug07.png
Visibility Lunar Eclipse 2017-08-07.png
Visibility map

Eclipses of 2017

Lunar year series

Lunar eclipse series sets from 2016–2020
Descending node Ascending node
Saros DateType
Viewing
GammaSarosDate
Viewing
Type
Chart
Gamma
109 2016 Aug 18
Lunar eclipse from moon-2016Aug18.png
Penumbral
Lunar eclipse chart close-2016Aug18.png
1.56406114
Penumbral lunar eclipse 2017.02.11.jpg
2017 Feb 11
Lunar eclipse from moon-2017Feb11.png
Penumbral
Lunar eclipse chart close-2017Feb11.png
−1.02548
119
Lunar eclipse of 2017 August 7 Kuwait.jpg
2017 Aug 07
Lunar eclipse from moon-2017Aug07.png
Partial
Lunar eclipse chart close-2017Aug07.png
0.86690124
Lunar eclipse January 31 2018 California Alfredo Garcia Jr mideclipse.jpg
2018 Jan 31
Lunar eclipse from moon-2018Jan31.png
Total
Lunar eclipse chart close-2018Jan31.png
−0.30143
129
Lunar Total Eclipse on July 27, 2018 (100 2006) (43696968392) (cropped).jpg
2018 Jul 27
Lunar eclipse from moon-2018Jul27.png
Total
Lunar eclipse chart close-2018Jul27.png
0.11681134
Total lunar eclipse on January 21, 2019 (45910439045) (cropped).jpg
2019 Jan 21
Lunar eclipse from moon-2019Jan21.png
Total
Lunar eclipse chart close-2019Jan21.png
0.36842
139
July 2019 Partial Lunar Eclipse.jpg
2019 Jul 16
Lunar eclipse from moon-2019Jul16.png
Partial
Lunar eclipse chart close-2019Jul16.png
−0.64300144
Penumbral Lunar Eclipse 2020-01-10-single.jpg
2020 Jan 10
Lunar eclipse from moon-2020Jan10.png
Penumbral
Lunar eclipse chart close-2020Jan10.png
1.07270
149 2020 Jul 05
Lunar eclipse from moon-2020Jul05.png
Penumbral
Lunar eclipse chart close-2020Jul05.png
−1.36387
Last set 2016 Sep 16 Last set 2016 Mar 23
Next set 2020 Jun 05 Next set 2020 Nov 30

Saros series

It is part of Saros series 119 (member 61 of 82).

Half-Saros cycle

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 total solar eclipses of Solar Saros 126.

1 August 2008 12 August 2026
SE2008Aug01T.png SE2026Aug12T.png

See also

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References

  1. "Why does moon in total eclipse look red? | Astronomy Essentials | EarthSky". earthsky.org. January 18, 2019.
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros