Solar eclipse of January 4, 2011

{{short description|21st-century partial solar eclipse}}

{{Infobox solar eclipse|2011Jan04

| previous = Solar eclipse of July 11, 2010

| next = Solar eclipse of June 1, 2011

}}

A partial solar eclipse occurred at the Moon’s ascending node of orbit on Tuesday, January 4, 2011,{{cite web|title=January 4, 2011 Partial Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/2011-january-4|publisher=timeanddate|access-date=11 August 2024}}{{Cite news

| url = https://newspapers.com/article/sentinel-tribune-mideast-europe-catch-p/134037989/

| date = 2011-01-04

| page = 3

| title = Mideast, Europe catch partial eclipse

| newspaper = Sentinel Tribune

| location =

| via = Newspapers.com

| access-date = 2023-10-25

}}{{Cite news

| url = https://newspapers.com/article/the-daily-oklahoman-yearss-1st-partial/134037995/

| date = 2011-01-04

| page = 7

| title = Years's 1st partial eclipse is today

| newspaper = The Daily Oklahoman

| location =

| via = Newspapers.com

| access-date = 2023-10-25

}} with a magnitude of 0.8576. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

This was the first of four partial solar eclipses in 2011, with the others occurring on June 1, July 1, and November 25.

The greatest eclipse occurred at 08:51 UTC in northern Sweden. At that time, the axis of the Moon's shadow passed a mere 510 km above Earth's surface.[http://eclipse.gsfc.nasa.gov/OH/OH2011.html#SE2011Jan04P Eclipses during 2011] NASA

The eclipse was visible near sunrise over most of Europe before moving over central Asia. It ended at sunset over east Asia. It was visible as a minor partial eclipse over north Africa and the Middle East.

Visibility

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.{{cite web|title=Partial Solar Eclipse of 2011 Jan 04|url=https://eclipsewise.com/solar/SEprime/2001-2100/SE2011Jan04Pprime.html|publisher=EclipseWise.com|access-date=11 August 2024}}

class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|left|0 0 0.5em 1em|0 1em 0.5em 0}}"

|+January 4, 2011 Solar Eclipse Times

! Event

! Time (UTC)

First Penumbral External Contact

| 2011 January 4 at 06:41:18.7 UTC

Greatest Eclipse

| 2011 January 4 at 08:51:42.4 UTC

Ecliptic Conjunction

| 2011 January 4 at 09:03:43.1 UTC

Equatorial Conjunction

| 2011 January 4 at 09:16:20.6 UTC

Last Penumbral External Contact

| 2011 January 4 at 11:02:01.4 UTC

class="wikitable" align="{{{align|right}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"

|+January 4, 2011 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 0.85759

Eclipse Obscuration

| 0.79839

Gamma

| 1.06265

Sun Right Ascension

| 18h59m14.9s

Sun Declination

| -22°44'21.1"

Sun Semi-Diameter

| 16'15.9"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 18h58m23.8s

Moon Declination

| -21°46'01.2"

Moon Semi-Diameter

| 15'18.1"

Moon Equatorial Horizontal Parallax

| 0°56'09.6"

ΔT

| 66.3 s

{{clear}}

Eclipse season

{{See also|Eclipse cycle}}

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.

class="wikitable"

|+ Eclipse season of December 2010–January 2011

! December 21
Descending node (full moon)
!! January 4
Ascending node (new moon)

200px200px
align=center

| Total lunar eclipse
Lunar Saros 125

Partial solar eclipse
Solar Saros 151

Related eclipses

= Eclipses in 2011 =

= Metonic =

= Tzolkinex =

= Half-Saros =

= Tritos =

= Solar Saros 151 =

= Inex =

= Triad =

= Solar eclipses of 2008–2011 =

{{Solar eclipse set 2008–2011}}

= Saros 151 =

{{Solar Saros series 151}}

= Metonic series =

{{Solar Metonic series 1935–2018}}

= Tritos series =

{{Solar Tritos series 2000 February 5}}

= Inex series =

{{Solar Inex series 2011 January 4}}

Notes

{{Reflist}}

References

  • {{Partial solar eclipse NASA reference|2001/SE2011Jan04P|20110104}}
  • [http://eclipse.gsfc.nasa.gov/OH/OHfigures/OH2011-Fig01.pdf NASA Chart] PDF