Understanding > Astronomical calculations
Annular eclipse of the Sun on 26 February 2017
Presentation of the eclipse
Description of the eclipse
The central line begins at the eastern Pacific Ocean, gores through Chile, Argentina, South Atlantic and ends in Africa. The eclipse is visible from southern South America and from southern Africa. The maximum duration of the centrality is 0m 44.0 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 73.8 sec.
Instant of the geocentric conjunction in right ascension : the 26 February 2017 at 14h 38m 42.9s UT.
Julian day : : 2457811.110218
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 22h 39m 23.1s. |
| Declination of the Sun : | -8° 29' 39.2". |
| Right ascension of the Moon : | 22h 39m 53.1s. |
| Declination of the Moon : | -8° 55' 4.1". |
| Equatorial parallax of the Sun : | 8.9". |
| Equatorial parallax of the Moon : | 57' 58.7". |
| True semi-diameter of the Sun : | 16' 9.1". |
| True semi-diameter of the Moon : | 15' 47.9". |
General circumstances of the eclipse
Magnitude : 0.9922
| Circumstances | UT | Longitude | Latitude |
|---|---|---|---|
| Beginning of the general eclipse | the 26 at 12h 10m 44.8s | ||
| Maximum of the eclipse | the 26 at 14h 53m 21.4s | 31°10.7'W | -34° 40.9' |
| End of the general eclipse | the 26 at 17h 35m 58.4s |
General map of visibility
