Understanding > Astronomical calculations
Annular eclipse of the Sun on 21 June 2020
Presentation of the eclipse
Description of the eclipse
The central line begins in Africa goes through the Arabian Peninsula, Pakistan, China, Taiwan, and ends in the Pacific Ocean. The maximum duration of the centrality is 0m 38.2 s.
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 77.2 sec.
Instant of the geocentric conjunction in right ascension : the 21 June 2020 at 6h 41m 18.4s UT.
Julian day : : 2459021.778685
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 6h 1m 33.0s. |
| Declination of the Sun : | +23° 26' 9.7". |
| Right ascension of the Moon : | 6h 1m 30.1s. |
| Declination of the Moon : | +23° 32'57.2". |
| Equatorial parallax of the Sun : | 8.7". |
| Equatorial parallax of the Moon : | 56' 31.1". |
| True semi-diameter of the Sun : | 15' 44.2". |
| True semi-diameter of the Moon : | 15' 24.0". |
General circumstances of the eclipse
Magnitude : 0.9940
| Circumstances | UT | Longitude | Latitude |
|---|---|---|---|
| Beginning of the general eclipse | the 21 at 3h 45m 53.8s | ||
| Maximum of the eclipse | the 21 at 6h 39m 59,3s | 79°41.3'E | +30° 31.6' |
| End of the general eclipse | the 21 at 9h 33m 57.5s |
General map of visibility
