Sentence examples for mean solar day from inspiring English sources

The mean solar day is the period used in calendar computation.

Tidal computations indicate a steady increase in the length of the mean solar day by about 1/40second every millennium.

This period of constant length, far more convenient for civil purposes, is the mean solar day, which has a duration in sidereal time of 24 hours 3 minutes 56.55 seconds.

The present-day value of ancient and medieval records of eclipses falls into two main categories: (1) chronological, depending mainly on the connection between an eclipse and a significant historical event, and (2) astronomical, especially the study of long-term variations in the length of the mean solar day.

The length of the mean solar day in SI seconds is available from the IERS for the periods 1623 2005 and 1962 2005.

The second was formerly defined as 1/86,400 of the mean solar day i.e., the average period of rotation of the Earth on its axis relative to the Sun.

Fig. 26 Neutral density at 425 km, represented on a latitude-time grid for day 200, a mean solar flux of 180 sfu, and Kp of 1, as predicted by the DTM-94 (a), MSIS-86 (b), DTM-2000 (c), and DTM-STAR (d) models (from Bruinsma et al. 2004).

For the solar activity we use a proxy Fsp index averaged from the mean solar radio flux F10.7s for the past 81 days (3 solar rotations) and F10.7 value for 1 day prior the day of observation.

The monthly mean solar radiation potential in northern and southern regions ranged from 7.01 5.62 to 5.43 3.54 kW h/m2 day, respectively.

Figure 2a shows the mean solar wind velocity, V, mean flow angle Φ V, density, n p, magnetic field magnitude, |B|, and standard deviation of IMF B Z component, σ Bz, over 12 days centered at the key time (day 0).

Earth's rotation period relative to the Sun its mean solar day is 86,400 seconds of mean solar time (86,400.0025 SI seconds).