Understanding > Astronomical calculations
Partial eclipse of the Sun of 13 September 2015
Presentation of the eclipse
Description of the eclipse
The eclipse is observable from Antarctica, the south of Africa and from the Indian ocean.
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 72.3 sec.
Instant of the geocentric conjunction in right ascension : the 13 September at 7h 35m 14,2s UT.
Julian day : : 2457278.816136
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 11h 23m 55.5s. |
| Declination of the Sun : | +3° 53' 20.4". |
| Right ascension of the Moon : | 11h 22m 43.2s. |
| Declination of the Moon : | +2° 56'48.3". |
| Equatorial parallax of the Sun : | 8.7". |
| Equatorial parallax of the Moon : | 54' 0.6". |
| True semi-diameter of the Sun : | 15' 53.6". |
| True semi-diameter of the Moon : | 14' 43.0". |
General circumstances of the eclipse
Magnitude : 0.7871
| Circumstances | UT |
|---|---|
| Beginning of the general eclipse | the 13 at 4h 41m 35.3s |
| Maximum of the eclipse | the 13 at 6h 54m 6.6s |
| End of the general eclipse | the 13 at 9h 6m 20.2s |
General map of visibility
