Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomical magnitude scale
|
| gptkbp:appliesTo |
apparent magnitude
absolute magnitude |
| gptkbp:defines |
A difference of 5 magnitudes corresponds to a brightness ratio of 100
|
| gptkbp:field |
gptkb:astronomy
|
| gptkbp:form |
m1 - m2 = -2.5 log10(F1/F2)
|
| gptkbp:hasUnit |
magnitude
|
| https://www.w3.org/2000/01/rdf-schema#label |
Pogson scale
|
| gptkbp:introducedIn |
1856
|
| gptkbp:namedAfter |
gptkb:Norman_Pogson
|
| gptkbp:usedFor |
measuring brightness of stars
|
| gptkbp:bfsParent |
gptkb:F._L._Pogson
|
| gptkbp:bfsLayer |
6
|