Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:soft_gamma_repeater
gptkb:magnetar |
| gptkbp:apparentMagnitude |
not visible in optical
|
| gptkbp:associatedWith |
gptkb:gamma-ray_bursts
|
| gptkbp:catalogueNumber |
gptkb:PSR_J1808-2024
|
| gptkbp:discoveredBy |
1979
|
| gptkbp:distanceFromEarth |
approximately 50,000 light-years
|
| gptkbp:energyReleasedIn2004Flare |
~10^46 joules
|
| gptkbp:hostedBy |
star cluster Cl* 1806-20
|
| https://www.w3.org/2000/01/rdf-schema#label |
SGR 1806-20
|
| gptkbp:locatedIn |
gptkb:constellation_Sagittarius
|
| gptkbp:magneticFieldStrength |
~2×10^15 gauss
|
| gptkbp:mass |
about 1.3–2 solar masses
|
| gptkbp:notableEvent |
giant flare on December 27, 2004
|
| gptkbp:otherDesignation |
gptkb:1E_1806.0-2024
gptkb:AX_J1808.4-2024 gptkb:PSR_J1808-2024 |
| gptkbp:rotationPeriod |
7.5 seconds
|
| gptkbp:type |
white dwarf
|
| gptkbp:bfsParent |
gptkb:soft_gamma_repeater
|
| gptkbp:bfsLayer |
6
|