isDifficultToObserveInVisible
P132950
predicate
Indicates that the subject cannot be easily detected or studied using visible-wavelength (optical) observations.
Observed surface forms (1)
- isDifficultToDetect ×1
Sample triples (2)
| Subject | Object |
|---|---|
|
openCluster Stephenson 2
surface form:
Stephenson 2
|
true ⓘ |
| Pisces II Dwarf Galaxy | true via predicate surface "isDifficultToDetect" ⓘ |