Alpha Cephei

Also known as Alderamin, 1RXS J211837.1+623513, α Cephei, α Cep, GJ 826, HIP 105199, HIC 105199, ROT 3108

star in the constellation of Cepheus

Key facts

Constellation: Cepheus
Right ascension: 21 18 34.7723
Declination: +62 ° 35 ′ 08.069 ″
Evolutionary stage: Subgiant
Spectral type: A8Vn or A7IV-V
U b color index: +0.12
B v color index: +0.21
Variable type: δ Sct + γ Dor

via Wikipedia infobox

Wikidata facts

Image: Cepheus constellation map-fr.png

Sources (4)

wikidata.org

Article

Alpha Cephei is a second magnitude star in the northern constellation of Cepheus. It has the official name Alderamin, pronounced /ælˈdɛrəmɪn/; Alpha Cephei is its Bayer designation, which is Latinized from α Cephei and abbreviated Alpha Cep or α Cep. The star is relatively close to Earth at 49 light years (ly) and drifting closer with a heliocentric radial velocity of about −16 km/s.

Nomenclature