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Iota Phe

HIP 116389; Iota Phe DoubleStar Phe Visible Level 4 Large telescope (10"+) - Requires steady seeing
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Physical Properties

Magnitude 4.71
Variable Type Alpha2 CVn (Magnetic Rotating)
Spectral Type A2VpSrCrEu
Star Color White (B-V 0.08)
Distance 652.3 ly

Position & Identifiers

RA 23h 35m 04.6s
Dec -42° 36' 54.0"
Constellation Phe
HR 8949
HIP 116389
Bayer Iota
Variable ID Iot Phe

Visibility

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Multiple Star System

Separation 6.5″
Companion Mag 12.8
Companion Sp A5V
Position Angle 273°
Star Colors A: White B: Yellow-white
Discoverer B 603

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 273° A (4.7) B (12.8)

Sep: 6.5″ · PA: 273° · 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

Alpha CV 4.70 - 4.75V, about 12.5d. Magnetic variable.
Weak positive magnetic field.

Survey Image

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