9 Cet
HIP 1803; 9 Cet
DoubleStar
Cet
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
6.39
Variable Type
BY Draconis (Spotted Rotating)
Spectral Type
G2V
Star Color
Yellow
(B-V 0.66)
Distance
66.6 ly
Position & Identifiers
RA
00h 22m 51.8s
Dec
-12° 12' 34.0"
Constellation
Cet
HR
88
HIP
1803
Flamsteed
9 Cet
Variable ID
BE Cet
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Visibility
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Multiple Star System
Separation
219.5″
Companion Mag
12.6
Position Angle
293°
Star Colors
A: Yellow
Discoverer
BUP 6
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 219.5″ · PA: 293° · 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 Notes
BY Dra, amp. 0.032V, 0.037B, 7.655d.
Hyades group.
Survey Image
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