arvau

Wikipedia / October 2013 lunar eclipse

A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Friday, 18 October 2013, with an umbral magnitude of −0.2706. 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. The Moon's apparent diameter was near the average diameter because it occurred 8.2 days after perigee (on 10 October 2013, at 19:15 UTC) and 6.9 days before apogee (on 25 October 2013, at 10:25 UTC).

Visibility

The eclipse was completely visible over Africa, Europe, eastern South America, and west Asia, seen rising over western South America and North America and setting over south and east Asia.

Visibility map

Images

Gallery

Eclipse details

Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.

Parameter

Value

Penumbral Magnitude

0.76603

Umbral Magnitude

−0.27064

Gamma

1.15082

Sun Right Ascension

13h35m31.9s

Sun Declination

-09°57'14.9"

Sun Semi-Diameter

16'03.4"

Sun Equatorial Horizontal Parallax

08.8"

Moon Right Ascension

01h34m19.6s

Moon Declination

+11°00'12.1"

Moon Semi-Diameter

15'29.3"

Moon Equatorial Horizontal Parallax

0°56'50.7"

ΔT

67.2 s

18 October 2013 Lunar Eclipse Parameters

Eclipse season

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.

October 18Descending node (full moon)

November 3Ascending node (new moon)

Penumbral lunar eclipseLunar Saros 117

Hybrid solar eclipseSolar Saros 143

Eclipse season of October–November 2013

Related eclipses

Eclipses in 2013

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 117

Inex

Triad

Lunar eclipses of 2013–2016

Saros 117

Tritos series

Inex series

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two partial solar eclipses of Solar Saros 124.

October 14, 2004

October 25, 2022

See also

References