Solar eclipse of July 22, 1971

{{short description|20th-century partial solar eclipse}}

{{Infobox solar eclipse|1971Jul22

| previous = Solar eclipse of February 25, 1971

| next = Solar eclipse of August 20, 1971

}}

A partial solar eclipse occurred at the Moon's descending node of orbit on Thursday, July 22, 1971,{{cite web|title=July 22, 1971 Partial Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1971-july-22|publisher=timeanddate|access-date=8 August 2024}} with a magnitude of 0.0689. 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.

A partial eclipse was visible for parts of the eastern Soviet Union and northern Alaska. This was the 70th and final solar eclipse from Solar Saros 116.

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 1971 Jul 22|url=https://eclipsewise.com/solar/SEprime/1901-2000/SE1971Jul22Pprime.html|publisher=EclipseWise.com|access-date=8 August 2024}}

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|+July 22, 1971 Solar Eclipse Times

! Event

! Time (UTC)

Equatorial Conjunction

| 1971 July 22 at 08:38:38.2 UTC

First Penumbral External Contact

| 1971 July 22 at 08:52:56.7 UTC

Ecliptic Conjunction

| 1971 July 22 at 09:15:39.4 UTC

Greatest Eclipse

| 1971 July 22 at 09:31:55.3 UTC

Last Penumbral External Contact

| 1971 July 22 at 10:11:20.6 UTC

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|+July 22, 1971 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 0.06899

Eclipse Obscuration

| 0.02136

Gamma

| 1.51298

Sun Right Ascension

| 08h04m17.6s

Sun Declination

| +20°22'36.4"

Sun Semi-Diameter

| 15'44.4"

Sun Equatorial Horizontal Parallax

| 08.7"

Moon Right Ascension

| 08h06m05.8s

Moon Declination

| +21°43'24.7"

Moon Semi-Diameter

| 15'17.0"

Moon Equatorial Horizontal Parallax

| 0°56'05.5"

ΔT

| 41.8 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. The first and last eclipse in this sequence is separated by one synodic month.

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|+ Eclipse season of July–August 1971

! July 22
Descending node (new moon)
!! August 6
Ascending node (full moon)
!! August 20
Descending node (new moon)

200px200px200px
align=center

| Partial solar eclipse
Solar Saros 116

Total lunar eclipse
Lunar Saros 128
Partial solar eclipse
Solar Saros 154

Related eclipses

= Eclipses in 1971 =

= Metonic =

= Tzolkinex =

= Half-Saros =

= Tritos =

= Solar Saros 116 =

= Inex =

= Triad =

= Solar eclipses of 1971–1974 =

{{Solar eclipse set 1971–1974}}

= Saros 116 =

{{Solar Saros series 116}}

= Metonic series =

{{Solar Metonic series 1971–2047}}

= Tritos series =

{{Solar Tritos series 2004 April 19}}

= Inex series =

{{Solar Inex series 2000 July 1}}

References

{{reflist}}