|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:apparent_magnitude
|
4.34
-5.20
|
|
gptkbp:average_temperature
|
approximately 6000 K
|
|
gptkbp:constellation
|
gptkb:Cepheus
|
|
gptkbp:coordinates
|
l = 100.5°, b = +2.0°
|
|
gptkbp:declination
|
+58° 24' 58"
|
|
gptkbp:discovery
|
gptkb:John_Goodricke
|
|
gptkbp:discovery_year
|
1784
|
|
gptkbp:distance
|
887 light years
|
|
gptkbp:has_bayer_designation
|
gptkb:Delta_Cephei
|
|
gptkbp:has_color
|
0.55
|
|
gptkbp:has_henry_draper_designation
|
gptkb:HD_217906
|
|
gptkbp:has_luminosity
|
approximately 2000 times that of the Sun
|
|
gptkbp:has_mechanic
|
-0.12 mas/yr
-0.10 mas/yr
|
|
gptkbp:has_radius
|
approximately 40 solar radii
|
|
gptkbp:has_spectral_type
|
F8 Ib
|
|
gptkbp:has_title
|
gptkb:HIP_114202
|
|
gptkbp:has_variations
|
classical Cepheid
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Delta Cephei
|
|
gptkbp:lighting
|
0.7 magnitudes
|
|
gptkbp:mass
|
approximately 5.5 solar masses
|
|
gptkbp:metallicity
|
solar metallicity
|
|
gptkbp:number
|
gptkb:HR_8720
Gl 217.1
|
|
gptkbp:period
|
5.366 days
|
|
gptkbp:right_ascension
|
22h 30m 36.1s
|
|
gptkbp:sao
|
gptkb:SAO_12380
|
|
gptkbp:type
|
gptkb:Cepheid_variable
|
|
gptkbp:bfsParent
|
gptkb:Cepheus_constellation
gptkb:Cepheus
gptkb:Cepheid
|
|
gptkbp:bfsLayer
|
5
|