3 Equ
HIP 104031; 3 Equ
DoubleStar
Equ
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.61
Spectral Type
K5III
Star Color
Red
(B-V 1.65)
Distance
296.5 ly
Position & Identifiers
RA
21h 04m 34.7s
Dec
+05° 30' 10.0"
Constellation
Equ
HR
8066
HIP
104031
Flamsteed
3 Equ
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Visibility
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Multiple Star System
Separation
82.5″
Companion Mag
14.0
Position Angle
252°
Star Colors
A: Red
Discoverer
BUP 223
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 82.5″ · PA: 252° · 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
Some early sources called this Zeta Equ. Not retained. Not Zeta in Bayer.
Survey Image
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