October 2023 lunar eclipse

{{Infobox lunar eclipse

| type = partial

| image =29th October 2023 Partial Lunar Eclipse seen from Bandung, Indonesia (03.14 AM UTC +7).jpg

| caption =Eclipse seen from Bandung, Indonesia

| date = October 28, 2023

| gamma = 0.9471

| magnitude = 0.1234

| saros_ser = 146

| saros_no = 11 of 72

| partiality = 77 minutes, 21 seconds

| penumbral = 264 minutes, 34 seconds

| p1 = 18:01:47

| u1 = 19:35:18

| greatest = 20:14:03

| u4 = 20:52:39

| p4 = 22:26:20

| previous = May 2023

| next = March 2024

}}

A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, October 28, 2023,{{cite web|title=October 28–29, 2023 Partial Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2023-october-28|publisher=timeanddate|access-date=18 November 2024}} with an umbral magnitude of 0.1234. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 2.9 days after perigee (on October 25, 2023, at 23:00 UTC), the Moon's apparent diameter was larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2023&n=136|publisher=timeanddate|access-date=18 November 2024}}

Visibility

The eclipse was completely visible over Africa, Europe, and Asia, seen rising over northeastern North America and eastern South America and setting over Australia and the western Pacific Ocean.{{cite web|title=Partial Lunar Eclipse of 2023 Oct 28|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2023Oct28P.pdf|publisher=NASA|access-date=18 November 2024}}

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Visibility map

Gallery

File:Lunar eclipse of 2023 October 28 in Logroño, Spain 1.jpg|Logroño, Spain, 20:08 UTC

File:Lunar Eclipse 28.10.2023 in Saratov.jpg|Lunar eclipse in Saratov, Russia, 20:12 UTC

File:Partial Lunar Eclipse - 20231029 - Surabaya, Indonesia.jpg|Surabaya, Indonesia, 20:14 UTC

File:Partial lunar eclipse from Vladivostok, Russia 2023.jpg|Lunar eclipse in Vladivostok, Russia, 20:15 UTC

File:Partial Lunar Eclipse of October, 2023.jpg|Lunar eclipse in Hefei, China, 20:17 UTC

File:Oct29 Eclipse Crop.jpg|Partial from Kumbakonam, India, 20:21 UTC

File:Partial Lunar Eclipse October 29, 2023 Jakarta, Indonesia.jpg|Jakarta, Indonesia, 20:23 UTC

File:20231029 Lunar Eclipse.jpg|Kuching, Malaysia, 19:35 UTC-20:14 UTC

File:Partial Lunar Eclipse on October 28–29, 2023 (53294441984).jpg|Sequence of lunar eclipse from Oria, Italy

Eclipse details

Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Partial Lunar Eclipse of 2023 Oct 28|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2023Oct28Pprime.html|publisher=EclipseWise.com|access-date=18 November 2024}}

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|+October 28, 2023 Lunar Eclipse Parameters

! Parameter

! Value

Penumbral Magnitude

| 1.11997

Umbral Magnitude

| 0.12393

Gamma

| 0.94716

Sun Right Ascension

| 14h11m25.9s

Sun Declination

| -13°14'10.5"

Sun Semi-Diameter

| 16'05.9"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 02h09m47.6s

Moon Declination

| +14°05'01.6"

Moon Semi-Diameter

| 16'09.7"

Moon Equatorial Horizontal Parallax

| 0°59'18.9"

ΔT

| 71.1 s

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.

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|+ Eclipse season of October 2023

! October 14
Descending node (new moon)
!! October 28
Ascending node (full moon)

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| Annular solar eclipse
Solar Saros 134

Partial lunar eclipse
Lunar Saros 146

Related eclipses

= Eclipses in 2023 =

A hybrid solar eclipse on April 20.
A penumbral lunar eclipse on May 5.
An annular solar eclipse on October 14.
A partial lunar eclipse on October 28.

= Metonic =

Preceded by: Lunar eclipse of January 10, 2020
Followed by: Lunar eclipse of August 17, 2027

= Tzolkinex =

Preceded by: Lunar eclipse of September 16, 2016
Followed by: Lunar eclipse of December 9, 2030

= Half-Saros =

Preceded by: Solar eclipse of October 23, 2014
Followed by: Solar eclipse of November 3, 2032

= Tritos =

Preceded by: Lunar eclipse of November 28, 2012
Followed by: Lunar eclipse of September 28, 2034

= Lunar Saros 146 =

Preceded by: Lunar eclipse of October 17, 2005
Followed by: Lunar eclipse of November 8, 2041

= Inex =

Preceded by: Lunar eclipse of November 18, 1994
Followed by: Lunar eclipse of October 8, 2052

= Triad =

Preceded by: Lunar eclipse of December 28, 1936
Followed by: Lunar eclipse of August 29, 2110

= Lunar eclipses of 2020–2023 =

= Metonic series =

= Saros 146 =

= 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).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros This lunar eclipse is related to two partial solar eclipses of Solar Saros 153.

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