Solar Data Archive Search
All times are in UTC.
Observation location: Alexandria, Egypt
Observation location: Alexandria, Egypt
- Julian Date
- Days since January 1, 4713 BC (days start at 12:00 UTC).
- R. A.
- Right Ascension of the Sun (measured from 0° at the vernal equinox).
- Decl.
- Declination of the Sun (measured from 0° at the vernal equinox).
- Dist.
- Distance from the Sun in astronomical units (AU). 1 AU = 149,597,870,700 m.
- Diam.
- Apparent diameter of the Sun in arcseconds.
- P
- Position angle of the solar north pole, measured eastward.
- Bo
- Heliographic latitude of the solar center (positive when the Sun’s north pole is visible). Angle of the solar equator.
- Lo
- Heliographic longitude of the central meridian in the Carrington rotation (period of 27.2753 days).
- Carr #
- Number of Carrington rotations since November 9, 1853.
- Az
- Azimuth of the Sun (measured from North towards East; highest at 180°/due South).
- H
- Elevation (height) of the Sun above the horizon (not corrected for atmospheric refraction).
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