October 2014 lunar eclipse

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Total lunar eclipse[1]
October 8, 2014
Lunar eclipse October 8 2014 California Alfredo Garcia Jr mideclipse.JPG
Lomita, California, 10:56 UTC
Lunar eclipse chart close-2014Oct08.png
The moon passes right to left through the Earth's shadow
Gamma 0.3827
Duration (hr:mn:sc)
Totality 0:58:50
Partial 3:19:33
Penumbral 5:18:10
Contacts (UTC)
P1 08:15:33
U1 09:14:48
U2 10:25:10
Greatest 10:54:36
U3 11:24:00
U4 12:34:21
P4 13:33:43

A total lunar eclipse took place on 8 October 2014. It is the second of two total lunar eclipses in 2014, and the second in a tetrad (four total lunar eclipses in series). Other eclipses in the tetrad are those of April 15, 2014, April 4, 2015, and September 28, 2015.

Visibility and appearance[edit]

The eclipse was visible in its entirety over the Northern Pacific. Viewers in North America experienced the eclipse after midnight on Wednesday, October 8, and the eclipse was visible from the Western Pacific, Australia, Indonesia, Japan, and Eastern Asia after sunset on the evening of October 8. Many areas of North America experienced a selenelion, able to see both the sun and the eclipsed moon at the same time.[2]

Visibility Lunar Eclipse 2014-10-08.png
Visibility

Background[edit]

Main article: Lunar eclipse

A lunar eclipse occurs when the Moon passes within Earth's umbra (shadow). As the eclipse begins, the Earth's shadow first darkens the Moon slightly. Then, the shadow begins to "cover" part of the Moon, turning it a dark red-brown color (typically - 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 refraction of that light by the Earth's atmosphere into its umbra.[3] The following simulation shows the approximate appearance of the Moon passing through the earth's shadow. The Moon's brightness is exaggerated within the umbral shadow. The northern portion of the Moon was closest to the center of the shadow, making it darkest, and most red in appearance.

Total eclipse with Uranus, Minneapolis, Minnesota, 10:46 UTC
Animation October 8 2014 lunar eclipse appearance.gif

The planet Uranus was near opposition (opposition on October 7[4]) during the eclipse, just over 1° from the eclipsed Moon. Shining at magnitude 5.7, Uranus should have been bright enough to identify in binoculars. Due to parallax, the position of Uranus relative to the Moon varied significantly depending on the viewing position on the surface of Earth.

Gallery[edit]


Lunar eclipse of 2014 October 8.JPG
Composite from Aichi prefecture, Japan
Lunar Eclipse Windchu.jpg
Composite from Coralville, Iowa, first contact to the greatest.
Lunar eclipse at sunrise Minneapolis October 2014.png
Selenelion from Minneapolis, Minnesota, with a partially eclipsed moon still up after sunrise, 12:25 UTC, seen by sunlight on foreground trees, right.

Timing[edit]

Local times of contacts
Timezone
adjustments from
UTC
+8h +11h +13h -9h -8h -7h -6h -5h -4h -3h
AWST AEDT NZDT HADT AKDT PDT MDT CDT
PET
EDT
BOT
ADT
AMST
ART
Event Evening October 8 Evening October 7 Morning October 8
P1 Penumbral begins 4:16 pm 7:16 pm 9:16 pm 11:16 pm 12:16 am 1:16 am 2:16 am 3:16 am 4:16 am 5:16 am
U1 Partial begins 5:15 pm 8:15 pm 10:15 pm 12:15 am 1:15 am 2:15 am 3:15 am 4:15 am 5:15 am 6:15 am
U2 Total begins 6:25 pm 9:25 pm 11:25 pm 1:25 am 2:25 am 3:25 am 4:25 am 5:25 am 6:25 am 7:25 am
Greatest eclipse 6:55 pm 9:55 pm 11:55 pm 1:55 am 2:55 am 3:55 am 4:55 am 5:55 am 6:55 am 7:55 am
U3 Total ends 7:24 pm 10:24 pm 12:24 am 2:24 am 3:24 am 4:24 am 5:24 am 6:24 am 7:24 am 8:24 am
U4 Partial ends 8:34 pm 11:34 pm 1:34 am 3:34 am 4:34 am 5:34 am 6:34 am 7:34 am 8:34 am 9:34 am
P4 Penumbral ends 9:34 pm 12:34 am 2:34 am 4:34 am 5:34 am 6:34 am 7:34 am 8:34 am 9:34 am 10:34 am
Contact points relative to the earth's umbral and penumbral shadows, here with the moon near is descending node

The timing of total lunar eclipses are determined by its contacts:[5]

P1 (First contact): Beginning of the penumbral eclipse. The Earth's penumbra touches the Moon's outer limb.
U1 (Second contact): Beginning of the partial eclipse. The Earth's umbra touches the Moon's outer limb.
U2 (Third contact): Beginning of the total eclipse. The Moon's surface is entirely within the Earth's umbra.
Greatest eclipse: The peak stage of the total eclipse. The Moon is at its closest to the center of the Earth's umbra.
U3 (Fourth contact): End of the total eclipse. The Moon's outer limb exits the Earth's umbra.
U4 (Fifth contact): End of the partial eclipse. The Earth's umbra leaves the Moon's surface.
P4 (Sixth contact): End of the penumbral eclipse. The Earth's penumbra no longer makes contact with the Moon.

Related eclipses[edit]

The eclipse is the one of four total lunar eclipses in a short-lived series at the descending node of the Moon's orbit.

The lunar year series repeats after 12 lunations, or 354 days (shifting back about 10 days in sequential years). Because of the date shift, Earth's shadow will be about 11° west in sequential events.

Lunar eclipse series sets from 2013–2016
Ascending node   Descending node
Saros Viewing
date
Type Saros Viewing
date
Type
112
Partial lunar eclipse 2013-04-25 2018UTC.jpg
2013 Apr 25
Lunar eclipse from moon-2013Apr25.png
Partial
Lunar eclipse chart close-2013Apr25.png
117
2013 Oct 18
Lunar eclipse from moon-2013Oct18.png
Penumbral
Lunar eclipse chart close-2013Oct18.png
122
Lunar eclipse April 15 2014 California Alfredo Garcia Jr1.jpg
2014 Apr 15
Lunar eclipse from moon-2014Apr15.png
Total
Lunar eclipse chart close-2014Apr15.png
127
Lunar eclipse October 8 2014 California Alfredo Garcia Jr mideclipse.JPG
2014 Oct 08
Lunar eclipse from moon-2014Oct08.png
Total
Lunar eclipse chart close-2014Oct08.png
132 2015 Apr 04
Lunar eclipse from moon-2015Apr04.png
Total
Lunar eclipse chart close-2015Apr04.png
137 2015 Sep 28
Lunar eclipse from moon-2015Sep28.png
Total
Lunar eclipse chart close-2015Sep28.png
142 2016 Mar 23
Lunar eclipse from moon-2016Mar23.png
Penumbral
Lunar eclipse chart close-2016Mar23.png
147 2016 Sep 16
Lunar eclipse from moon-2016Sep16.png
Penumbral
Lunar eclipse chart close-2016Sep16.png
Last set 2013 May 25 Last set 2012 Nov 28
Next set 2017 Feb 11 Next set 2016 Aug 08

See also[edit]

References[edit]

  1. ^ http://eclipse.gsfc.nasa.gov/OH/OHfigures/OH2014-Fig03.pdf
  2. ^ Boyle, Alan (October 7, 2014). "Lunar Eclipse Provides an Extra Twist for Skywatchers: Selenelion". NBC News. Retrieved October 8, 2014. 
  3. ^ Fred Espenak and Jean Meeus. "Visual Appearance of Lunar Eclipses". NASA. Retrieved April 13, 2014. 
  4. ^ http://in-the-sky.org/news.php?id=20141007_13_100
  5. ^ Clarke, Kevin. "On the nature of eclipses". Inconstant Moon. Cyclopedia Selenica. Retrieved 19 December 2010.