Solar eclipse of April 6, 1875

{{Infobox solar eclipse|1875Apr06

| previous = Solar eclipse of October 10, 1874

| next = Solar eclipse of September 29, 1875

}}

A total solar eclipse occurred at the Moon's ascending node of orbit on Tuesday, April 6, 1875, with a magnitude of 1.0547. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 1.2 days before perigee (on April 7, 1875, at 10:50 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=1875&n=136|publisher=timeanddate|access-date=29 August 2024}}

The path of totality was visible from parts of the modern-day Andaman and Nicobar Islands, Myanmar, Thailand, northwestern Cambodia, Laos, Vietnam, and southern Hainan. A partial solar eclipse was also visible for parts of Southern Africa, South Asia, Southeast Asia, and East Asia.

Observations

Astronomers J. N. Lockyer and Arthur Schuster traveled to observe the eclipse and measure spectral lines to determine the elemental contents of the solar corona.{{Cite journal |author-link=Norman Lockyer|author-link2=Arthur Schuster |url=http://rstl.royalsocietypublishing.org/content/169/139.full.pdf |jstor=109303 |title=Report on the Total Solar Eclipse of April 6, 1875 |last1=Lockyer |first1=J. N. |last2=Schuster |first2=Arthur |journal=Philosophical Transactions of the Royal Society of London |date=1878 |volume=169 |pages=139–154 |bibcode=1878RSPT..169..139L }}

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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=Total Solar Eclipse of 1875 Apr 06|url=https://eclipsewise.com/solar/SEprime/1801-1900/SE1875Apr06Tprime.html|publisher=EclipseWise.com|access-date=29 August 2024}}

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|+April 6, 1875 Solar Eclipse Times

! Event

! Time (UTC)

First Penumbral External Contact

| 1875 April 6 at 03:58:24.3 UTC

First Umbral External Contact

| 1875 April 6 at 04:53:30.8 UTC

First Central Line

| 1875 April 6 at 04:54:30.3 UTC

First Umbral Internal Contact

| 1875 April 6 at 04:55:29.9 UTC

First Penumbral Internal Contact

| 1875 April 6 at 05:51:22.0 UTC

Equatorial Conjunction

| 1875 April 6 at 06:30:12.4 UTC

Ecliptic Conjunction

| 1875 April 6 at 06:36:06.1 UTC

Greatest Eclipse

| 1875 April 6 at 06:37:26.0 UTC

Greatest Duration

| 1875 April 6 at 06:41:48.9 UTC

Last Penumbral Internal Contact

| 1875 April 6 at 07:23:40.2 UTC

Last Umbral Internal Contact

| 1875 April 6 at 08:19:24.7 UTC

Last Central Line

| 1875 April 6 at 08:20:25.7 UTC

Last Umbral External Contact

| 1875 April 6 at 08:21:26.7 UTC

Last Penumbral External Contact

| 1875 April 6 at 09:16:27.4 UTC

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|+April 6, 1875 Solar Eclipse Parameters

! Parameter

! Value

Eclipse Magnitude

| 1.05467

Eclipse Obscuration

| 1.11232

Gamma

| −0.12915

Sun Right Ascension

| 00h59m10.4s

Sun Declination

| +06°19'21.5"

Sun Semi-Diameter

| 15'58.4"

Sun Equatorial Horizontal Parallax

| 08.8"

Moon Right Ascension

| 00h59m25.4s

Moon Declination

| +06°12'27.7"

Moon Semi-Diameter

| 16'33.9"

Moon Equatorial Horizontal Parallax

| 1°00'47.6"

ΔT

| -3.3 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.

class="wikitable"

|+ Eclipse season of April 1875

! April 6, 1875
Ascending node (new moon)
!! April 20
Descending node (full moon)

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align=center

| Total solar eclipse
Solar Saros 127

Penumbral lunar eclipse
Lunar Saros 139

Related eclipses

= Eclipses in 1875 =

A total solar eclipse on April 6.
A penumbral lunar eclipse on April 20.
A penumbral lunar eclipse on September 15.
An annular solar eclipse on September 29.
A penumbral lunar eclipse on October 14.

= Metonic =

Preceded by: Solar eclipse of June 18, 1871
Followed by: Solar eclipse of January 22, 1879

= Tzolkinex =

Preceded by: Solar eclipse of February 23, 1868
Followed by: Solar eclipse of May 17, 1882

= Half-Saros =

Preceded by: Lunar eclipse of March 31, 1866
Followed by: Lunar eclipse of April 10, 1884

= Tritos =

Preceded by: Solar eclipse of May 6, 1864
Followed by: Solar eclipse of March 5, 1886

= Solar Saros 127 =

Preceded by: Solar eclipse of March 25, 1857
Followed by: Solar eclipse of April 16, 1893

= Inex =

Preceded by: Solar eclipse of April 25, 1846
Followed by: Solar eclipse of March 17, 1904

= Triad =

Preceded by: Solar eclipse of June 4, 1788
Followed by: Solar eclipse of February 5, 1962

= Solar eclipses of 1874–1877 =

The partial solar eclipse on August 9, 1877 occurs in the next lunar year eclipse set.

class="wikitable mw-collapsible mw-collapsed" !class="nowrap" colspan="7" \| Solar eclipse series sets from 1874 to 1877
scope="col" colspan="3" \| Ascending node \| rowspan="6" \| ! scope="col" colspan="3" \| Descending node
style="text-align: center;" ! scope="col" \| Saros ! scope="col" \| Map ! scope="col" \| Gamma ! scope="col" \| Saros ! scope="col" \| Map ! scope="col" \| Gamma
style="text-align: center;" \| 117 \| April 16, 1874 150px Total \| −0.8364 \| 122 \| October 10, 1874 150px Annular \| 0.9889
style="text-align: center;" \| 127 \| April 6, 1875 150px Total \| −0.1292 \| 132 \| September 29, 1875 150px Annular \| 0.2427
style="text-align: center;" \| 137 \| March 25, 1876 150px Annular \| 0.6142 \| 142 \| September 17, 1876 150px Total \| −0.5054
style="text-align: center;" \| 147 \| March 15, 1877 150px Partial \| 1.3924 \| 152 \| September 7, 1877 150px Partial \| −1.1985

class="wikitable mw-collapsible mw-collapsed"

!class="nowrap" colspan="7" | Solar eclipse series sets from 1874 to 1877

scope="col" colspan="3" | Ascending node

| rowspan="6" |

! scope="col" colspan="3" | Descending node

style="text-align: center;"

! scope="col" | Saros

! scope="col" | Map

! scope="col" | Gamma

! scope="col" | Saros

! scope="col" | Map

! scope="col" | Gamma

style="text-align: center;"

| 117

| April 16, 1874
150px
Total

| −0.8364

| 122

| October 10, 1874
150px
Annular

| 0.9889

style="text-align: center;"

| 127

| April 6, 1875
150px
Total

| −0.1292

| 132

| September 29, 1875
150px
Annular

| 0.2427

style="text-align: center;"

| 137

| March 25, 1876
150px
Annular

| 0.6142

| 142

| September 17, 1876
150px
Total

| −0.5054

style="text-align: center;"

| 147

| March 15, 1877
150px
Partial

| 1.3924

| 152

| September 7, 1877
150px
Partial

| −1.1985

= Saros 127 =

= Metonic series =

= Tritos series =

= Inex series =

Notes

References

[http://eclipse.gsfc.nasa.gov/5MCSEmap/1801-1900/1882-05-17.gif NASA graphic]
[http://eclipse.gsfc.nasa.gov/SEsearch/SEsearchmap.php?Ecl=18820517 Googlemap]
[http://eclipse.gsfc.nasa.gov/SEsearch/SEdata.php?Ecl=18820517 NASA Besselian elements]

1875 04 06

Category:1875 in science

1875 04 06

Category:April 1875