Solar eclipse of July 13, 2018
A partial solar eclipse occurred at the Moon's ascending node of orbit on Friday, July 13, 2018, with a magnitude of 0.3365. 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.
The moon's penumbra touched a small part of Antarctica, and southern Australia in Tasmania, where the eclipse was observed with a magnitude of about 0.1. The eclipse was also visible in Stewart Island, an island south of New Zealand.
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.| Event | Time |
| First Penumbral External Contact | 2018 July 13 at 01:49:32.3 UTC |
| Ecliptic Conjunction | 2018 July 13 at 02:49:01.2 UTC |
| Greatest Eclipse | 2018 July 13 at 03:02:16.1 UTC |
| Equatorial Conjunction | 2018 July 13 at 03:10:13.3 UTC |
| Last Penumbral External Contact | 2018 July 13 at 04:14:55.9 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.33654 |
| Eclipse Obscuration | 0.22578 |
| Gamma | −1.35423 |
| Sun Right Ascension | 07h29m31.1s |
| Sun Declination | +21°50'30.6" |
| Sun Semi-Diameter | 15'44.0" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 07h29m10.9s |
| Moon Declination | +20°27'46.1" |
| Moon Semi-Diameter | 16'42.8" |
| Moon Equatorial Horizontal Parallax | 1°01'20.4" |
| ΔT | 69.2 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.| July 13 Ascending node | July 27 Descending node | August 11 Ascending node |
| Partial solar eclipse Solar Saros 117 | Total lunar eclipse Lunar Saros 129 | Partial solar eclipse Solar Saros 155 |
Related eclipses
Eclipses in 2018
- A total lunar eclipse on January 31.
- A partial solar eclipse on February 15.A partial solar eclipse on July 13.
- A total lunar eclipse on July 27.
- A partial solar eclipse on August 11.
Metonic
- Followed by: Solar eclipse of April 30, 2022
Half-Saros
- Preceded by: Lunar eclipse of July 7, 2009
- Followed by: Lunar eclipse of July 18, 2027
Tritos
- Followed by: Solar eclipse of June 12, 2029
Solar Saros 117
- Preceded by: Solar eclipse of July 1, 2000
- Followed by: Solar eclipse of July 23, 2036
Inex
- Followed by: Solar eclipse of June 23, 2047
Triad
- Preceded by: Solar eclipse of September 12, 1931
- Followed by: Solar eclipse of May 14, 2105