BL Her

GPTKB entity

Statements (33)
Predicate Object
gptkbp:instanceOf gptkb:star
variable star
gptkbp:apparentMagnitude 9.7
-1.0
gptkbp:catalogueNumber GSC 02093-00679
gptkbp:category Population II Cepheid
gptkbp:declination +18° 13′ 47.6″
gptkbp:discoveredBy Sergey Gaposchkin
gptkbp:discoveredIn 1907
gptkbp:distanceFromEarth ~10,000 light years
https://www.w3.org/2000/01/rdf-schema#label BL Her
gptkbp:lightCurveType pulsating
gptkbp:locatedIn constellation Hercules
gptkbp:luminosity ~600 solar luminosities
gptkbp:mass ~0.6 solar masses
gptkbp:metallicity [Fe/H] = -1.0
gptkbp:notableFor prototype of BL Herculis variables
gptkbp:otherDesignation 2MASS J16301998+1813476
BD+18 3083
HD 148174
HIP 80386
SAO 102110
TYC 2093-679-1
gptkbp:parallax 0.04 mas
0.33 mas
gptkbp:period 1.3 days
gptkbp:radialVelocity -60 km/s
gptkbp:rightAscension 16h 30m 19.98s
gptkbp:spectralType F7Ib
gptkbp:temperature ~6,000 K
gptkbp:variableType variable star
gptkbp:bfsParent gptkb:BL_Herculis
gptkbp:bfsLayer 7