Planets in antiscia and contra-antiscia reflect one another across the cardinal axis. The cardinal axis (sometimes called the Aries Point) is essentially the node of the Sun and is a point we all share. It is the intersection of two Great Circles: the ecliptic (the sun's path = our zodiac) and the earth's equator. A planetary pair is formed when planets connect across the cardinal axis. Like pairs formed by planets in aspect or in conjunction, planets in antiscia make a terrestrial (or mundane) statement. Therefore, planetary pairs provide insight into the energy of the day, as well as enriching natal and dynamic chart delineation. More on antiscia here...

To use the list below, simply blend the meanings of the planets in combination.

The date[s] the pair is formed is LEFT - the day & time it perfects is RIGHT.
Bold dates indicate a particular planetary expression is exact (within 10 minutes of arc).
Dates showing one planet indicate its ingress onto the cardinal axis (meaning it's at zero cardinal or fifteen degrees fixed (midpoint), and ought to feature prominently that day).
Those with a (c) indicate contra-antiscia - a symmetrical arrangement around the Aries/Libra axis.

Day of month + Planet/Planetary Pair + Day/Time @ exact (PST)

1, 2, 3 Sun Jupiter (c) 2 – 05:44

6, 7, 8 Mars (0 LIB)

7, 8 Mercury Venus 7 – 17:53 Kate Petty's webinar on antiscia @ Kepler College

10, 11 Sun Pluto 11 – 00:27

11, 12 Mercury Jupiter (c) 12 – 05:41

16, 17 Mercury Pluto 17 – 05:35

21 Sun (0 CAP) Happy Solstice ! + Venus retrograde @ 28°59 Capricorn

22, 23 Sun Mercury 23 – 00:41

23, 24 Mercury (0 CAP)

Dec 1 - Sun Jupiter contra-antiscion (like Jimi Hendrix)

December 7 - when Mars comes to the cardinal axis, i.e. it enters Libra - I will be offering a free webinar on antiscia through Kepler College. (You don't have to be present to attend! As long as you register you will receive a recording of the presentation.) Being a Mars-y type I'm excited for energy of the day, especially as Mercury is also applying in antiscion with Venus. This is a midpoint structure, or planetary picture, btw, while at the same time being on the cardinal axis :
Mercury + Venus = Aries | Mars
From Ebertin's The Combination of Stellar Influences -- "aesthetic aspirations or wishes, creative energy, an appreciation of practical art and of utility-objects made artistically. . . A utility-artist. . ." Mars loves machines and technique, Mercury Venus supports creative communication. Sounds good to me!
Hope you can join me.