Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:age |
about 200 million years
|
| gptkbp:apparentMagnitude |
2.99
|
| gptkbp:catalogue |
gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue gptkb:Bright_Star_Catalogue |
| gptkbp:colorIndexB-V |
0.00
|
| gptkbp:constellation |
gptkb:Lyra
|
| gptkbp:declination |
+26° 17′ 48″
|
| gptkbp:diameter |
2.2 solar radii
|
| gptkbp:distanceFromEarth |
25.7 light years
|
| https://www.w3.org/2000/01/rdf-schema#label |
HD 177724
|
| gptkbp:luminosity |
40 times solar luminosity
|
| gptkbp:mass |
2.2 solar masses
|
| gptkbp:metallicity |
[Fe/H] ≈ 0.0
|
| gptkbp:otherName |
gptkb:Beta_Lyrae
β Lyrae |
| gptkbp:parallax |
126.97 mas
|
| gptkbp:properMotionRA |
-8.23 mas/yr
-130.59 mas/yr |
| gptkbp:rightAscension |
19h 05m 24.6s
|
| gptkbp:rotationPeriod |
280 km/s
|
| gptkbp:SIMBAD |
HD+177724
|
| gptkbp:spectralType |
A0V
|
| gptkbp:U-B_color_index |
-0.03
|
| gptkbp:variableStar |
no
|
| gptkbp:bfsParent |
gptkb:Ascella
|
| gptkbp:bfsLayer |
6
|