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HIP 90146

HIP 90146 DoubleStar Dra Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 6.32
Spectral Type A3m
Star Color Yellow-white (B-V 0.16)

Position & Identifiers

RA 18h 23m 47.8s
Dec +53° 18' 03.0"
Constellation Dra
HR 6911
HIP 90146

Visibility

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Multiple Star System

Separation 0.9″
Position Angle 43°
Star Colors A: Yellow-white
Discoverer YSC 66

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 43° A (6.3) B (8.3)

Sep: 0.9″ · PA: 43° · 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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Survey Image

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