Statements (30)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:galaxy
|
| gptkbp:alternativeName |
3C 405
4C 40.40 NRAO 661 PKS 1957+405 QSO B1957+405 WENSS B1957.7+4044 |
| gptkbp:apparentMagnitude |
16.2
|
| gptkbp:contains |
black hole
|
| gptkbp:declination |
+40° 44′ 02.096″
|
| gptkbp:discoveredBy |
gptkb:Grote_Reber
|
| gptkbp:discoveredIn |
1939
|
| gptkbp:distanceFromEarth |
about 600 million light-years
|
| gptkbp:galacticLatitude |
76.19°
80.19° |
| gptkbp:groupCluster |
Abell 2199
|
| gptkbp:hasJet |
yes
|
| gptkbp:hostedBy |
gptkb:galaxy
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cygnus A
|
| gptkbp:jetLength |
about 150,000 light-years
|
| gptkbp:locatedIn |
gptkb:constellation_Cygnus
|
| gptkbp:notableFor |
one of the strongest radio sources in the sky
|
| gptkbp:radioFluxDensity |
1700 Jy at 178 MHz
|
| gptkbp:radioLobes |
two
|
| gptkbp:redshift |
0.056075
|
| gptkbp:rightAscension |
19h 59m 28.3566s
|
| gptkbp:spectralType |
gptkb:Seyfert_2
|
| gptkbp:type |
FR II radio galaxy
|
| gptkbp:bfsParent |
gptkb:galaxy
|
| gptkbp:bfsLayer |
4
|