An Astrological (Mini-)Glossary: Thingies
Luminaries: the Sun and the Moon. Sometimes also called “the lights.” We can get an excellent “bare bones” idea of a person based on their Sun and Moon, and the interrelationship between them. And, looking at the luminaries’ cycle in the progressed chart is kind of a “TL;DR” or “Cliff’s Notes” version of your whole life.
The one astrological transit-type thing I always try to be aware of, on a daily basis, is what the Sun and Moon are doing at any given moment - in a way, it is a kind of “what time of the month is it.”
Inner Planets: Mercury, Venus, and Mars. These placements show how we’re unique individuals. For example: two of my sisters, my daughter, and I are all Geminis - with our birthdays on June 4, 6, 9, and 11 - but none of us share completely identical inner planet placements.
Asteroids: thingies orbiting (for the most part) between Mars and Jupiter. The four main ones (which I call “Lady Asteroids”) are Ceres, Pallas Athene, Juno, and Vesta. To me they’re all very community-oriented, providing us with clues/ways to navigate the immediate tribal and familial circumstances. I feel sometimes that we need to work hard on these, to become better at doing the next bunch of thingies….
Outer Planets: Jupiter, Saturn, Uranus, Neptune. Can be further subdivided into:
Social Planets: Jupiter and Saturn. All the people in your high school class (and perhaps a year before or after) share these sign placements with you.
Transcendental Planets: Uranus and Neptune. These show up more as generational influences: Uranus spends seven years in one sign, and Neptune spends 14 years in one sign.
Centaurs: various thingies orbiting between various outer planets. They act as bridges or ambassadors between those two planets. Sort of helping us navigate between our own culture (Jupiter and Saturn) and other cultures (Uranus and Neptune). The most famous Centaur is Chiron.
Trans-Neptunian Objects: thingies orbiting beyond Neptune’s orbit. Pluto is in this category, as is Eris. There are scads of these, too.
We don’t have to know every last placement for every last asteroid, Centaur, or TNO. It’s useful but not required. As an example, to have one of them closely conjunct an important point can help refine a delineation.
Similarly, a strategically-placed thingie can take part in an aspect pattern, like the way my Centaur Pholus turns a mere t-square into a grand cross. It isn’t conjunct anything, but it’s closely square my Venus and Ascendant, and opposite my Ceres.
Your Pluto or Eris, also, may not be very well-integrated or active in your birth chart, but one of the other TNOs (Haumea? Makemake?) may be pushing all the buttons.
A cool thing about the asteroids is that there are so damned many of them, they ran out of mythological names and started to have to use names of actual people, places, and even bands (#8749 Beatles). One fun rabbit hole is to look up your name, and the names of people close to you, to see where they fall in your chart. My son’s name is conjunct my MC, my daughter’s name is conjunct my Ascendant, and my own name is conjunct my Part of Fortune.