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HIP 20765

HIP 20765 DoubleStar Eri Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 6.11
Spectral Type A2
Star Color White (B-V 0.14)
Distance 172 ly

Position & Identifiers

RA 04h 26m 57.0s
Dec -24° 04' 53.0"
Constellation Eri
HR 1410
HIP 20765
Double Cat 3230

Visibility

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Multiple Star System

Separation 0.4″
Companion Mag 7.1
Position Angle 168°
Star Colors A: White B: Yellow-white
Discoverer BU 311

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 168° A (6.1) B (7.1)

Sep: 0.4″ · PA: 168° · 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

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Stellar Fusion

Stellar Notes

6.8 A2, 7.0, 175.7y, a = 1.250".

Survey Image

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