Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:alternativeName |
gptkb:V1427_Aquilae
|
| gptkbp:apparentMagnitude |
8.19
|
| gptkbp:catalogueNumber |
gptkb:HD_179821
|
| gptkbp:constellation |
gptkb:Aquila
|
| gptkbp:declination |
+00° 07′ 31″
|
| gptkbp:diameter |
~400 solar radii
|
| gptkbp:discoveredBy |
gptkb:Henry_Draper_Catalogue
|
| gptkbp:distanceFromEarth |
~6,000 light-years
|
| gptkbp:evolutionaryStage |
red supergiant
|
| https://www.w3.org/2000/01/rdf-schema#label |
HD 179821
|
| gptkbp:luminosity |
~126,000 times Sun
|
| gptkbp:mass |
~19 solar masses
|
| gptkbp:metallicity |
[Fe/H] ≈ -0.1
|
| gptkbp:parallax |
0.54 mas
|
| gptkbp:possibleSupernovaProgenitor |
yes
|
| gptkbp:rightAscension |
19h 13m 58.6s
|
| gptkbp:SIMBADID |
HD+179821
|
| gptkbp:spectralType |
G5 Ia
|
| gptkbp:temperature |
~5,700 K
|
| gptkbp:variableType |
semi-regular variable
|
| gptkbp:bfsParent |
gptkb:SAO_187696
gptkb:SAO_238429 |
| gptkbp:bfsLayer |
7
|