A partial solar eclipse occurred at the Moon's ascending node of orbit on Sunday, June 17, 1928, with a magnitude of 0.0375. 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 northern Soviet Union. This is the 1st solar eclipse of Solar Saros 155, and this is the next saros cycle to begin after the partial solar eclipse of July 19, 1917 (part of Solar Saros 154).

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.

June 17, 1928 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1928 June 17 at 20:02:02.9 UTC
Greatest Eclipse1928 June 17 at 20:27:28.2 UTC
Ecliptic Conjunction1928 June 17 at 20:42:22.7 UTC
Equatorial Conjunction1928 June 17 at 20:46:44.4 UTC
Last Penumbral External Contact1928 June 17 at 20:52:47.3 UTC
June 17, 1928 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.03756
Eclipse Obscuration0.00879
Gamma1.51070
Sun Right Ascension05h44m06.5s
Sun Declination+23°23'56.5"
Sun Semi-Diameter15'44.4"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension05h43m17.3s
Moon Declination+24°54'44.1"
Moon Semi-Diameter16'32.3"
Moon Equatorial Horizontal Parallax1°00'41.9"
ΔT24.2 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of May–June 1928
May 19 Ascending node (new moon)June 3 Descending node (full moon)June 17 Ascending node (new moon)
Total solar eclipse Solar Saros 117Total lunar eclipse Lunar Saros 129Partial solar eclipse Solar Saros 155

Related eclipses

Eclipses in 1928

Metonic

Tzolkinex

Tritos

Solar Saros 155

Triad

Solar eclipses of 1924–1928

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.

The partial solar eclipses on March 5, 1924 and August 30, 1924 occur in the previous lunar year eclipse set, and the solar eclipses on May 19, 1928 and November 12, 1928 occur in the next lunar year eclipse set.

Solar eclipse series sets from 1924 to 1928
Ascending nodeDescending node
SarosMapGammaSarosMapGamma
115July 31, 1924 Partial−1.4459120January 24, 1925 Total0.8661
125July 20, 1925 Annular−0.7193130 Totality in Sumatra, IndonesiaJanuary 14, 1926 Total0.1973
135July 9, 1926 Annular0.0538140January 3, 1927 Annular−0.4956
145June 29, 1927 Total0.8163150December 24, 1927 Partial−1.2416
155June 17, 1928 Partial1.5107

Saros 155

This eclipse is a part of Saros series 155, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on June 17, 1928. It contains total eclipses from September 12, 2072 through August 30, 2649; hybrid eclipses from September 10, 2667 through October 2, 2703; and annular eclipses from October 13, 2721 through May 8, 3064. The series ends at member 71 as a partial eclipse on July 24, 3190. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

The longest duration of totality will be produced by member 14 at 4 minutes, 5 seconds on November 6, 2162, and the longest duration of annularity will be produced by member 63 at 5 minutes, 31 seconds on April 28, 3046. All eclipses in this series occur at the Moon’s ascending node of orbit.

Series members 1–16 occur between 1928 and 2200:
123
June 17, 1928June 29, 1946July 9, 1964
456
July 20, 1982July 31, 2000August 11, 2018
789
August 21, 2036September 1–2, 2054September 12, 2072
101112
September 23, 2090October 4–5, 2108October 16, 2126
131415
October 26, 2144November 6–7, 2162November 17, 2180
16
November 28, 2198

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

25 eclipse events between April 5, 1837 and June 17, 1928
April 5–6January 22–23November 10–11August 28–30June 17–18
107109111113115
April 5, 1837January 22, 1841November 10, 1844August 28, 1848June 17, 1852
117119121123125
April 5, 1856January 23, 1860November 11, 1863August 29, 1867June 18, 1871
127129131133135
April 6, 1875January 22, 1879November 10, 1882August 29, 1886June 17, 1890
137139141143145
April 6, 1894January 22, 1898November 11, 1901August 30, 1905June 17, 1909
147149151153155
April 6, 1913January 23, 1917November 10, 1920August 30, 1924June 17, 1928

Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1801 and 1928
May 25, 1808 (Saros 144)April 24, 1819 (Saros 145)March 24, 1830 (Saros 146)February 21, 1841 (Saros 147)January 21, 1852 (Saros 148)
December 21, 1862 (Saros 149)November 20, 1873 (Saros 150)October 19, 1884 (Saros 151)September 18, 1895 (Saros 152)August 20, 1906 (Saros 153)
July 19, 1917 (Saros 154)June 17, 1928 (Saros 155)

Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.

The partial solar eclipse on December 18, 2188 (part of Saros 164) is also a part of this series but is not included in the table below.

Series members between 1801 and 1928
September 5, 1812 (Saros 151)August 16, 1841 (Saros 152)July 28, 1870 (Saros 153)
June 17, 1928 (Saros 155)

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