Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
variable star
|
| gptkbp:ageRange |
10 to 300 million years
|
| gptkbp:alsoKnownAs |
gptkb:Classical_Cepheids
|
| gptkbp:discoveredBy |
gptkb:John_Goodricke
|
| gptkbp:distance |
extragalactic distances
|
| gptkbp:firstObserved |
1784
|
| gptkbp:foundIn |
gptkb:Population_I_stars
|
| https://www.w3.org/2000/01/rdf-schema#label |
Delta Cephei variables
|
| gptkbp:importantFor |
standard candle
|
| gptkbp:lightCurveShape |
asymmetric
|
| gptkbp:location |
disk of the Milky Way
|
| gptkbp:luminosityVariation |
up to 2 magnitudes
|
| gptkbp:metallicity |
high
|
| gptkbp:namedAfter |
gptkb:Delta_Cephei
|
| gptkbp:notableExample |
gptkb:Polaris
gptkb:Delta_Cephei Beta Doradus Eta Aquilae Zeta Geminorum |
| gptkbp:periodLuminosityRelation |
yes
|
| gptkbp:periodRange |
1 to 100 days
|
| gptkbp:prototype |
gptkb:Delta_Cephei
|
| gptkbp:range |
3 to 12 solar masses
|
| gptkbp:spectralType |
F6 – K2
|
| gptkbp:usedFor |
distance measurement
|
| gptkbp:variant |
pulsating
|
| gptkbp:bfsParent |
gptkb:Classical_Cepheids
|
| gptkbp:bfsLayer |
7
|