Antis - Ctr. Antis
Parallel - Ctr. Parallel
Antis and Ctr (contra) Antis are a special kind of aspects. They represent not some special angle between two planets but a symmetrical position in regards to different axes.
Look at the example below: the Moon makes an ANTIS aspect to Mercury and CTR. ANTIS to Mars.
Antis aspect is when two planets are located symmetrically in regards to Cancer-Capricorn axis. I.e. these planets are inclined to this axis at the same angle.
Ctr. Antis - is when these planets are located symmetrically in respect to Aries-Libra axis
In Timing Solution these aspects are denoted this way:
Parallel and Ctr. Parallel are the aspects corresponding to DECLINATION Zodiac.
Parallel is when two planets have the same declination, like the Moon - declination is 5 degrees North and Mercury - declination is 5 degrees North as well.
In other words this is just a conjunction in DECLINATION Zodiac, and you can define it this way:
Ctr. Parallel is when two planets have the OPPOSITE declination, like the Moon - declination is 5 degrees North and Mercury - declination is 5 degrees South.
In Timing Solution you can define Ctr. Parallel this way:
Look at another example that shows the planetary position in declination Zodiac:
Here the Moon and Mercury have the same declination - this is a parallel aspect. Mars has the same absolute value of declination but the opposite value - this is Ctr. Parallel aspect.