October 2014 lunar eclipse

Last updated

Total lunar eclipse
8 October 2014
Lunar eclipse October 8 2014 California Alfredo Garcia Jr mideclipse.JPG
From Lomita, California, 10:55 UTC
Ecliptic north up
Lunar eclipse chart close-2014Oct08.png
The Moon passes right to left (west to east) through Earth's shadow
Saros (and member) 127 (42 of 72)
Gamma 0.3826
Magnitude 1.1659
Duration (hr:mn:sc)
Totality0:58:50
Partial3:19:31
Penumbral5:18:03
Contacts (UTC)
P18:15:36
U19:14:48
U210:25:09
Greatest10:54:35
U311:23:59
U412:34:19
P413:33:39

A total lunar eclipse took place on Wednesday 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 15 April 2014, 4 April 2015, and 28 September 2015. Occurring only 2.1 days after perigee (Perigee on 6 October 2014), the Moon's apparent diameter was larger, 1960.6 arcseconds (32 arcminutes, 40.6 arcseconds).

Contents

This is the 42nd member of Lunar Saros 127. The previous event is the September 1996 lunar eclipse. The next event is October 2032 lunar eclipse.

Visibility and appearance

NASA chart of the eclipse 2014-10-08 Lunar Eclipse Sketch.png
NASA chart of the eclipse

The eclipse was visible in its entirety over the Northern Pacific. Viewers in North America experienced the eclipse after midnight on Wednesday, 8 October, and the eclipse was visible from the Philippines, Western Pacific, Australia, Indonesia, Japan, and Eastern Asia after sunset on the evening of 8 October. Many areas of North America experienced a selenelion, able to see both the sun and the eclipsed moon at the same time. [1]

The MESSENGER spacecraft from orbit at the planet Mercury which was 107 million kilometers away from Earth at the time also observed the eclipse, making it the first lunar eclipse in history to be observed from another planet. [2] [3]

Lunar eclipse from moon-2014Oct08.png
Simulation of Earth from the Moon.
Visibility Lunar Eclipse 2014-10-08.png
Visibility

Background

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. [4] 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 southern portion of the Moon was closest to the center of the shadow, making it darkest, and most red in appearance.

Animation October 8 2014 lunar eclipse appearance.gif

The planet Uranus was near opposition (opposition on 7 October [5] ) 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.

Lunar eclipse of 2014 October 8.JPG
Composite from Aichi prefecture, Japan
Lunar Eclipse Windchu.jpg
Composite from Coralville, IA, first contact to the greatest.
Lunar eclipse at sunrise Minneapolis October 2014.png
Selenelion from Minneapolis, MN, with a partially eclipsed moon still up after sunrise, 12:26 UTC, seen by sunlight on foreground trees, right.

Timing

Local times of contacts
Time zone
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
EventEvening 8 OctoberEvening 7 OctoberMorning 8 October
P1Penumbral beginsN/A†7:16 pm9:16 pm11:16 pm12:16 am1:16 am2:16 am3:16 am4:16 am5:16 am
U1Partial beginsN/A†8:15 pm10:15 pm12:15 am1:15 am2:15 am3:15 am4:15 am5:15 am6:15 am
U2Total begins6:25 pm9:25 pm11:25 pm1:25 am2:25 am3:25 am4:25 am5:25 am6:25 am7:25 am
Greatest eclipse6:55 pm9:55 pm11:55 pm1:55 am2:55 am3:55 am4:55 am5:55 am6:55 amSet
U3Total ends7:24 pm10:24 pm12:24 am2:24 am3:24 am4:24 am5:24 am6:24 amSetSet
U4Partial ends8:34 pm11:34 pm1:34 am3:34 am4:34 am5:34 am6:34 amSetSetSet
P4Penumbral ends9:34 pm12:34 am2:34 am4:34 am5:34 am6:34 amSetSetSetSet

† The Moon was not visible during this part of the eclipse in this time zone.

Contact points relative to the earth's umbral and penumbral shadows, here with the moon near is descending node Lunar eclipse contact diagram.svg
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: [6]
  • P1 (First contact): Beginning of the penumbral eclipse. Earth's penumbra touches the Moon's outer limb.
  • U1 (Second contact): Beginning of the partial eclipse. Earth's umbra touches the Moon's outer limb.
  • U2 (Third contact): Beginning of the total eclipse. The Moon's surface is entirely within Earth's umbra.
  • Greatest eclipse: The peak stage of the total eclipse. The Moon is at its closest to the center of Earth's umbra.
  • U3 (Fourth contact): End of the total eclipse. The Moon's outer limb exits Earth's umbra.
  • U4 (Fifth contact): End of the partial eclipse. Earth's umbra leaves the Moon's surface.
  • P4 (Sixth contact): End of the penumbral eclipse. Earth's penumbra no longer makes contact with the Moon.

Eclipses of 2014

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
TypeGammaSarosViewing
date
TypeGamma
112
Partial lunar eclipse 2013.04.25.jpg
2013 Apr 25
Lunar eclipse from moon-2013Apr25.png
Partial
Lunar eclipse chart close-2013Apr25.png
−1.0121117
MG 8074 (10353408985) (cropped).jpg
2013 Oct 18
Lunar eclipse from moon-2013Oct18.png
Penumbral
Lunar eclipse chart close-2013Oct18.png
1.1508
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
−0.3017127
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
0.3827
132
Lunar eclipse April 4 2015 greatest Alfredo Garcia Jr LA.jpg
2015 Apr 04
Lunar eclipse from moon-2015Apr04.png
Total
Lunar eclipse chart close-2015Apr04.png
0.4460137
Lunar eclipse September 27 2015 greatest Alfredo Garcia Jr.jpg
2015 Sep 28
Lunar eclipse from moon-2015Sep28.png
Total
Lunar eclipse chart close-2015Sep28.png
−0.3296
142 2016 Mar 23
Lunar eclipse from moon-2016Mar23.png
Penumbral
Lunar eclipse chart close-2016Mar23.png
1.1592147
Penumbral eclipse on Sep.16, 2016 (29735793325).jpg
2016 Sep 16
Lunar eclipse from moon-2016Sep16.png
Penumbral
Lunar eclipse chart close-2016Sep16.png
−1.0549
Last set 2013 May 25 Last set 2012 Nov 28
Next set 2017 Feb 11 Next set 2016 Aug 18

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). [7] This lunar eclipse is related to two annular solar eclipses of solar saros 134.

3 October 2005 14 October 2023
SE2005Oct03A.png SE2023Oct14A.png

Saros series

Lunar saros series 127, repeating every 18 years and 11 days, has a total of 72 lunar eclipse events including 54 umbral lunar eclipses (38 partial lunar eclipses and 16 total lunar eclipses). Solar Saros 134 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

GreatestFirst

The greatest eclipse of the series occurred on 1888 Jul 23, lasting 102 minutes.
PenumbralPartialTotalCentral
1275 Jul 091473 Nov 041798 May 291834 Jun 21
Last
CentralTotalPartialPenumbral
1960 Sep 05 2068 Nov 092429 Jun 172555 Sep 02
1901–2100
1906 Aug 04 1924 Aug 14 1942 Aug 26
Lunar eclipse chart close-1906Aug04.png Lunar eclipse from moon-1906Aug04.png Lunar eclipse chart close-1924Aug14.png Lunar eclipse from moon-1924Aug14.png Lunar eclipse chart close-1942Aug26.png Lunar eclipse from moon-1942Aug26.png
1960 Sep 05 1978 Sep 16 1996 Sep 27
Lunar eclipse chart close-1960Sep05.png Lunar eclipse from moon-1960Sep05.png Lunar eclipse chart close-1978Sep16.png Lunar eclipse from moon-1978Sep16.png Lunar eclipse chart close-1996Sep27.png Lunar eclipse from moon-1996Sep27.png
2014 Oct 08 2032 Oct 18 2050 Oct 30
Lunar eclipse chart close-2014Oct08.png Lunar eclipse from moon-2014Oct08.png Lunar eclipse chart close-2032Oct18.png Lunar eclipse from moon-2032Oct18.png Lunar eclipse chart close-2050Oct30.png Lunar eclipse from moon-2050Oct30.png
2068 Nov 09
Lunar eclipse chart close-2068Nov09.png Lunar eclipse from moon-2068Nov09.png

Tzolkinex

See also

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References

  1. Boyle, Alan (7 October 2014). "Lunar Eclipse Provides an Extra Twist for Skywatchers: Selenelion". NBC News . Retrieved 8 October 2014.
  2. "Lunar Eclipse From Mercury". NASA. Retrieved 20 April 2024.
  3. "From Mercury orbit, MESSENGER watches a lunar eclipse". Planetary Society. 10 October 2014. Retrieved 23 January 2015.
  4. Fred Espenak & Jean Meeus. "Visual Appearance of Lunar Eclipses". NASA. Retrieved 13 April 2014.
  5. "Archived copy". Archived from the original on 26 March 2016. Retrieved 19 April 2014.{{cite web}}: CS1 maint: archived copy as title (link)
  6. Clarke, Kevin. "On the nature of eclipses". Inconstant Moon. Cyclopedia Selenica. Retrieved 19 December 2010.
  7. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros