-
Solar time is a
calculation of the p****age of time
based on the
position of the Sun in the sky. The
fundamental unit of
solar time is the
day,
based on...
- A
synodic day (or
synodic rotation period or
solar day) is the
period for a
celestial object to
rotate once in
relation to the star it is orbiting, and...
- time
accounting of the Earth's
natural fluctuation of a
solar day, and
stellar day and
sidereal day (using the
celestial sphere) used for astronomy. In most...
-
latitude and the season). A mean
solar day (what we
normally measure as a "
day") is the
average time
between local solar noons ("average"
since this varies...
- Earth's
rotation period relative to the Sun (
solar noon to
solar noon) is its true
solar day or
apparent solar day. It
depends on Earth's
orbital motion and...
-
Solar irradiance is the
power per unit area (surface
power density)
received from the Sun in the form of
electromagnetic radiation in the
wavelength range...
- Sol (borrowed from the
Latin word for sun) is a
solar day on Mars; that is, a Mars-
day. A sol is the
apparent interval between two
successive returns of...
-
within about one
second of mean
solar time (such as UT1) at 0° longitude, (at the IERS
Reference Meridian). The mean
solar day is
slightly longer than 86,400...
-
culminations occurring every solar day at
different times,
taking a
sidereal year (366.3 days), a year that is one
day longer than the
solar year, for a culmination...
-
Alexandrian astronomer, ****agesimally
subdivided both the mean
solar day and the true
solar day to at
least six
places after the ****agesimal point, and he...