Illumination by the Moon
(direct light only; a general planetary ephemeris is also possible)
Planet topocentric (Long.= 16.600, Lat.= 49.200 degrees)
coordinates on
2024- 7-17 at 23:34: 0, expressed in UTC, or
2024- 7-18 at 1:34: 0 (Thursday)
expressed in the used time, which is 2.00 h ahead of the UTC:
Julian date : 2460509.4819 Local sidereal time : 20:25:31
Planet from S ang.height far L-LS illumin. b PA long. PhA
-------- ------- ---- ---- ------- ----- ----- --- ----
degrees degrees AU degr. lux d e g r e e
Ea.R. col.
Moon 48.34 -2.02 60.6 136 0 6.7 7.4 -6.1 51.8
> far < gives distance of the body from the Earth (in Earth radii for Moon),
> L-LS < difference of the ecliptical longitude of the body
from that of the Sun (if positive, the body is east from the Sun),
> old < for Moon is (L-LS / 360 degrees) * 29.53059 days
> Illu.< horizontal direct illumination by the object
> b < planetographic latitude of the subterrestrial point
> PA < position angle of the central meridian of the planet
> long < planetographic longitude of the subterrestrial point
> PhA < "phase angle", i.e., angle Sun-body-Earth.
> col. < for Moon is the so-called colongitudo (its PhA=abs(L-LS))
This is a result of the programme
planet (available as a part of a package
pas_jh.zip (1.2 MB) --
the needed Pascal units themselves are unzipped within
this directory, the whole tree of my programmes within
this directory)
with a command line:
planet c10 d18.07.2024 t01:34 l16.6 f49.2 ut2 ze20 i