Understanding > Astronomical calculations
Partial eclipse of the Sun on 15 February 2018
Presentation of the eclipse
Description of the eclipse
The eclipse is visible in Antarctica and in the south of South America.
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 74.8 sec.
Instant of the geocentric conjunction in right ascension : the 15 February 2018 at 20h 15m 2.2s UT.
Julian day : : 2458165.343776
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 21h 57m 18.7s. |
| Declination of the Sun : | -12° 28' 7.7". |
| Right ascension of the Moon : | 21h 58m 26.8s. |
| Declination of the Moon : | -13° 32'30.6". |
| Equatorial parallax of the Sun : | 8.9". |
| Equatorial parallax of the Moon : | 55' 0.9". |
| True semi-diameter of the Sun : | 16' 11.4". |
| True semi-diameter of the Moon : | 14' 59.4". |
General circumstances of the eclipse
Magnitude : 0.5986
| Circumstances | UT |
|---|---|
| Beginning of the general eclipse | the 15 at 18h 55m 45.8s |
| Maximum of the eclipse | the 15 at 20h 51m 18.6s |
| End of the general eclipse | the 15 at 22h 47m 3.4s |
General map of visibility
