Iota Ara
HIP 85079; Iota Ara
DoubleStar
Ara
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.25
Range
5.18 - 5.26
Period
13.4 hours
Variable Type
BE
Spectral Type
B2IIIne
Star Color
Blue-white
(B-V -0.11)
Position & Identifiers
RA
17h 23m 16.1s
Dec
-47° 28' 06.0"
Constellation
Ara
HR
6451
HIP
85079
Bayer
Iota
Variable ID
Iot Ara
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Visibility
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Light Curve
Multiple Star System
Separation
45.0″
Companion Mag
11.6
Position Angle
60°
Star Colors
A: Blue-white
Discoverer
HDO 271
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 45.0″ · PA: 60° · 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
Gamma Cas? 5.22 - 5.25V on time scale of fraction of a day.
Companion G5III, optical.
H alpha profile varies.
Survey Image
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