A total solar eclipse occurred at the Moon's ascending node of orbit on Thursday, August 29, 1867, with a magnitude of 1.0344. 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 2.5 days after perigee (on August 27, 1867, at 2:00 UTC), the Moon's apparent diameter was larger.

The path of totality was visible from parts of modern-day Chile, Argentina, and Uruguay. A partial solar eclipse was also visible for parts of South America, Southern Africa, and Antarctica.

Observations José J. Vergara and Luis Grosch observed the eclipse from a small hill close to Santiago.

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.

+August 29, 1867 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1867 August 29 at 10:53:07.3 UTC First Umbral External Contact 1867 August 29 at 12:07:39.8 UTC First Central Line 1867 August 29 at 12:08:47.2 UTC First Umbral Internal Contact 1867 August 29 at 12:09:55.3 UTC Ecliptic Conjunction 1867 August 29 at 13:04:53.8 UTC Greatest Duration 1867 August 29 at 13:11:07.4 UTC Greatest Eclipse 1867 August 29 at 13:13:06.8 UTC Equatorial Conjunction 1867 August 29 at 13:37:17.8 UTC Last Umbral Internal Contact 1867 August 29 at 14:16:03.1 UTC Last Central Line 1867 August 29 at 14:17:09.0 UTC Last Umbral External Contact 1867 August 29 at 14:18:14.1 UTC Last Penumbral External Contact 1867 August 29 at 15:32:59.4 UTC

+August 29, 1867 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 1.03443 Eclipse Obscuration 1.07005 Gamma −0.79403 Sun Right Ascension 10h29m57.6s Sun Declination +09°25'50.6" Sun Semi-Diameter 15'50.6" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 10h29m05.0s Moon Declination +08°40'29.6" Moon Semi-Diameter 16'13.7" Moon Equatorial Horizontal Parallax 0°59'33.6" ΔT 3.2 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.

+ Eclipse season of August–September 1867 August 29Ascending node (new moon) September 14Descending node (full moon) Total solar eclipseSolar Saros 123 Partial lunar eclipseLunar Saros 135

Related eclipses Eclipses in 1867 An annular solar eclipse on March 6. A partial lunar eclipse on March 20. A total solar eclipse on August 29. A partial lunar eclipse on September 14.

Metonic Preceded by: Solar eclipse of November 11, 1863 Followed by: Solar eclipse of June 18, 1871

Tzolkinex Preceded by: Solar eclipse of July 18, 1860 Followed by: Solar eclipse of October 10, 1874

Half-Saros Preceded by: Lunar eclipse of August 24, 1858 Followed by: Lunar eclipse of September 3, 1876

Tritos Preceded by: Solar eclipse of September 29, 1856 Followed by: Solar eclipse of July 29, 1878

Solar Saros 123 Preceded by: Solar eclipse of August 18, 1849 Followed by: Solar eclipse of September 8, 1885

Inex Preceded by: Solar eclipse of September 18, 1838 Followed by: Solar eclipse of August 9, 1896

Triad Preceded by: Solar eclipse of October 27, 1780 Followed by: Solar eclipse of June 30, 1954

Solar eclipses of 1866–1870

The partial solar eclipses on April 15, 1866 and October 8, 1866 occur in the previous lunar year eclipse set, and the solar eclipses on June 28, 1870 (partial) and December 22, 1870 (total) occur in the next lunar year eclipse set.

Solar eclipse series sets from 1866 to 1870 Descending node  Ascending node Saros Map Gamma Saros Map Gamma 108 March 16, 1866Partial 1.4241 113 118 March 6, 1867Annular 0.7716 123 August 29, 1867Total −0.7940 128 February 23, 1868Annular 0.0706 133 August 18, 1868Total −0.0443 138 February 11, 1869Annular −0.6251 143 August 7, 1869Total 0.6960 148 January 31, 1870Partial −1.2829 153 July 28, 1870Partial 1.5044

Saros 123

Metonic series

Tritos series

Inex series

References

NASA chart graphics Googlemap NASA Besselian elements