Understanding > Astronomical calculations
Partial eclipse of the Sun on 11 August 2018
Presentation of the eclipse
Description of the eclipse
The eclipse is visible from Canada to Siberia through the north of Europe.
Elements of the eclipse
Ephemeris used to calculate positions of the Sun and Earth are the ephemeris Newcomb/ILE. For this calculation the value of TE-TU was exceptionally forced at 75.3 sec.
Instant of the geocentric conjunction in right ascension : the 11 August 2018 at 9h 19m 59,6s UT.
Julian day : : 2458341.888884
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 9h 24m 28.0s. |
| Declination of the Sun : | +15° 13' 19.3". |
| Right ascension of the Moon : | 9h 25m 31.3s. |
| Declination of the Moon : | +16° 21'41.3". |
| Equatorial parallax of the Sun : | 8.7". |
| Equatorial parallax of the Moon : | 1° 1' 10.0". |
| True semi-diameter of the Sun : | 15' 46.8". |
| True semi-diameter of the Moon : | 16' 40.0". |
General circumstances of the eclipse
Magnitude : 0.7361
| Circumstances | UT |
| Beginning of the general eclipse | the 11 at 8h 2m 4.8s |
| Maximum of the eclipse | the 11 at 9h 46m 15.0s |
| End of the general eclipse | the 11 at 11h 30m 38.7s |
General map of visibility
