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1 CrB

HIP 75049; 1 CrB DoubleStar Corona Borealis (CrB) Visible Level 2 Small telescope (4") - Requires steady seeing
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Physical Properties

Magnitude 5.51
Spectral Type K0III
Star Color Orange (B-V 1.02)
Distance 3,262 ly

Position & Identifiers

RA 15h 20m 08.5s
Dec +29° 36' 58.0"
HR 5709
HIP 75049
Flamsteed 1 CrB

Visibility

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Multiple Star System

Separation 144.1″
Companion Mag 10.5
Position Angle 343°
Star Colors A: Orange
Discoverer ENG 53

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 343° A (5.5) B (10.5)

Sep: 144.1″ · PA: 343° · N up, E left

Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″

Size Comparison

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Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

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Stellar Fusion

Exoplanets 1 known planet

Planet Radius Mass Period Distance
omi CrB b 13.70R⊕ 1.12M♃ 187.0d 277ly

Habitable Zone

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