12/01/2022 – the Moon and Jupiter 3.5 degrees apart at dusk
(Wednesday): Mars (magnitude -1.9) will be occulted by the Full Moon.
From the Rapid City area this will be visible in the Eastern sky between 40
and 52 degrees above the horizon.
times are very dependent on the observer’s exact location. There are so
many factors in the computations that deviations from the times listed below
should be expected. In addition, it can be difficult to capture a record of
the events listed below with a reliable time stamp accurate at the
sub-second level. The times listed here are based on my calculations, other
predictions may be found on the Web.
reports with accurate times and locations (times accurate to a second or
better, and WGS84 coordinates to 5 decimal places) are extremely welcome
email to: G e o r g e 0 7 @ r a p . m i d
c o . n e t).
observations at the Journey Museum and Learning Center (103.2187 West,
contact: 7:51:29.9 PM MST
obscured 7:52:08.4 PM
to emerge 8:58:31.7 PM
complete 8:59:13.9 PM
observations at Hidden Valley Observatory (103.2975 West, 44.1082 North):
contact: 7:51:28.0 PM MST
obscured 7:52:06.5 PM
to emerge 8:58:30.6 PM
complete 8:59:12.8 PM
occultation of Mars can be seen from the Earth every few years, but for a
specific area, such as Western South Dakota, this is an infrequent
occurrence: January 13, 2025; June 6, 2038; Feb. 4, 2042; and May 28, 2048
being the next instances for such occultations of Mars.
12/07/2022 9:08 PM – Full Moon
12/07/2022 10:42 PM – Mars at opposition, magnitude -1.9
12/09/2022 4:14 PM – Earliest sunset at Journey Museum
12/21/2022 8:31 AM – Mercury (mag. -0.6) at greatest
separation from the Sun 20.1 degrees E (i.e. Mercury sets in the West shortly
12/21/2022 2:48 PM – Winter solstice (length of day at
JMLC 8h 52m 45s)
12/28/2022 – Mercury and Venus 1.4 degrees apart at dusk