Understanding > Astronomical calculations
Partial eclipse of the Sun on 25 November 2011
Presentation of the eclipse
Description of the eclipse
The eclipse is visible from Antarctica.
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 68.5 sec.
Instant of the geocentric conjunction in right ascension : the 25 November 2011 at 6h 31m 19.5s UT.
Julian day : : 2455890.771754
| Characteristics | Values |
|---|---|
| Right ascension of the Sun : | 16h 2m 13.6s. |
| Declination of the Sun : | -20° 40' 56.1". |
| Right ascension of the Moon : | 16h 1m 46.1s. |
| Declination of the Moon : | -21° 44' 24.9". |
| Equatorial parallax of the Sun : | 8.9". |
| Equatorial parallax of the Moon : | 1° 0' 42.7". |
| True semi-diameter of the Sun : | 16' 12.1". |
| True semi-diameter of the Moon : | 16' 32.6". |
General circumstances of the eclipse
Magnitude : 0.9048
| Circumstances | UT |
|---|---|
| Beginning of the general eclipse | the 25 at 4h 23m 14.0s |
| Maximum of the eclipse | the 25 at 6h 20m 15.9s |
| End of the general eclipse | the 15 at 8h 17m 15.8s |
General map
