Alderamin
HIP 105199; Alpha Cep; 5 Cep
HIP 105199; Alpha Cep; 5 Cep
DoubleStar
Cep
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.44
Variable Type
Delta Scuti (Pulsating)
Spectral Type
A8Vn
Star Color
Yellow-white
(B-V 0.22)
Distance
48 ly
Position & Identifiers
RA
21h 18m 34.8s
Dec
+62° 35' 08.0"
Constellation
Cep
HR
8162
HIP
105199
Bayer
Alpha
Flamsteed
5 Cep
Double Cat
14858
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Visibility
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Multiple Star System B: optical
Components
4
Component IDs
AB
Separation
196.6″
Companion Mag
11.5
Position Angle
17°
Star Colors
A: Yellow-white
Discoverer
BU 1502
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 196.6″ · PA: 17° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
ADS 14858A, Delta Sct?, 2.41 - 2.47V.
ALDERAMIN; Alderaimin.
Survey Image
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