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HIP 11644 DoubleStar For Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 6.51
Spectral Type dA9n
Star Color Yellow-white (B-V 0.29)

Position & Identifiers

RA 02h 30m 13.8s
Dec -25° 11' 11.0"
Constellation For
HR 733
HIP 11644
Variable ID TY For

Visibility

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Multiple Star System

Separation 0.6″
Companion Mag 8.9
Position Angle 77°
Star Colors A: Yellow-white B: Yellow
Discoverer HDS 325

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 77° A (6.5) B (8.9)

Sep: 0.6″ · PA: 77° · N up, E left

Unresolved · 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

6.49 - 6.51V, 0.05d, pulsating.
Hyades group.

Survey Image

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