Angelo Secchi (classification system)
                        
                            GPTKB entity
                        
                    
                Statements (16)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:stellar_classification | 
| gptkbp:class | white and blue stars | 
| gptkbp:classII | yellow stars | 
| gptkbp:classIII | orange to red stars | 
| gptkbp:classIV | red stars with carbon bands | 
| gptkbp:classV | stars with bright emission lines | 
| gptkbp:developedBy | gptkb:Angelo_Secchi | 
| gptkbp:field | gptkb:astronomy | 
| gptkbp:influenced | gptkb:Harvard_spectral_classification | 
| gptkbp:introducedIn | 1860s | 
| gptkbp:notableFor | first systematic stellar spectral classification | 
| gptkbp:numberOfStudents | five | 
| gptkbp:usedFor | classifying stars by spectra | 
| gptkbp:bfsParent | gptkb:O-type_stars | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Angelo Secchi (classification system) |