Caelum
Caelum is a GTNH extension compound made from Vitreus and Metallum. One point costs 5 primal points to synthesize from scratch.
Recipe
Combine one point of each component at the research table to get one point of Caelum. Counting all the way down to primals, a single point takes 5 primal points:
That total is the number the solver shows as craft cost when it places Caelum in an empty cell.
What Caelum connects to
Caelum links to 2 aspects in this library (see the connection rule): its two components.
| Neighbor | Why it connects | Craft cost |
|---|---|---|
| Vitreus | Component of Caelum | 2 |
| Metallum | Component of Caelum | 3 |
No compound in this library is built from Caelum, so its only neighbors are its own components. A fixed Caelum on a note has to be approached through Vitreus or Metallum.
When Caelum is printed on your note and you only need to leave it, Vitreus is the cheapest first step at cost 2.
Reaching Caelum from each primal
These are the shortest valid chains in this dataset, using base and GTNH extension aspects. Where several chains tie on length, the one with the cheapest in-between aspects is listed. Cost counts only the aspects between the two ends, the cells you would have to fill.
| From | Chain | Cells to fill | Cost |
|---|---|---|---|
| Aer | Aer → Motus → Ordo → Vitreus → Caelum | 3 | 5 |
| Terra | Terra → Vitreus → Caelum | 1 | 2 |
| Ignis | Ignis → Potentia → Ordo → Vitreus → Caelum | 3 | 5 |
| Aqua | Aqua → Victus → Terra → Vitreus → Caelum | 3 | 5 |
| Ordo | Ordo → Vitreus → Caelum | 1 | 2 |
| Perditio | Perditio → Permutatio → Ordo → Vitreus → Caelum | 3 | 5 |
A real note also has geometry: the chain has to fit the free hexes between your endpoints. If the gap is longer than the chain, pad it by stepping back and forth between two aspects that connect, or let the solver find a layout that fits.
Data source
Caelum is in the GTNH extension group. Its default commonness is 41 out of 100, an editable estimate used by the Common ranking. This entry has not been checked against a pinned primary source; report a mismatch if your pack differs. The recipe table covers every component pair and the version limits.