Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:astronomy
|
| gptkbp:alsoKnownAs |
gptkb:Beta_Persei
|
| gptkbp:apparentMagnitude |
2.12 to 3.39
|
| gptkbp:component |
gptkb:Algol_A
gptkb:Algol_B |
| gptkbp:contains |
gptkb:Algol_A
gptkb:Algol_B gptkb:Algol_C |
| gptkbp:declination |
+40° 57′ 20″
|
| gptkbp:discoveredBy |
gptkb:John_Goodricke
|
| gptkbp:discoveredIn |
1782
|
| gptkbp:distanceFromEarth |
about 90 light-years
|
| gptkbp:hasMassTransfer |
yes
|
| gptkbp:hasVariableStarDesignation |
gptkb:Beta_Persei
|
| gptkbp:historicalSignificance |
first known eclipsing binary
|
| https://www.w3.org/2000/01/rdf-schema#label |
Algol system
|
| gptkbp:isPrototypeOf |
Algol variable stars
|
| gptkbp:locatedIn |
gptkb:Perseus_constellation
|
| gptkbp:notableFor |
binary star system
|
| gptkbp:periodOfVariability |
2.867 days
|
| gptkbp:rightAscension |
03h 08m 10.1s
|
| gptkbp:spectralType |
A7m (Algol C)
B8V (Algol A) K0IV (Algol B) |
| gptkbp:tertiaryComponent |
gptkb:Algol_C
|
| gptkbp:visibleToNakedEye |
yes
|
| gptkbp:bfsParent |
gptkb:Algol_A
gptkb:HD_19356 |
| gptkbp:bfsLayer |
7
|