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Nu CrB

HIP 80197; Nu CrB; 20 CrB

Observable Double Star Excellent (62/100)

Sep: 356.1", Companion: mag 5.6

HIP 80197; Nu CrB; 20 CrB DoubleStar Corona Borealis (CrB) Visible Level 1 Naked eye / Binoculars - Requires steady seeing
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Physical Properties

Magnitude 5.20
Spectral Type M2IIIab
Star Color Red (B-V 1.60)
Distance 1,087 ly

Position & Identifiers

RA 16h 22m 21.4s
Dec +33° 47' 57.0"
HR 6107
HIP 80197
Bayer Nu
Flamsteed 20 CrB

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Multiple Star System

Components 4
Component IDs AB
Separation 356.1″
Companion Mag 5.6
Position Angle 164°
Star Colors A: Red
Discoverer STFA 29

Eyepiece View

32x Dawes: 1.9″ TFOV: 1.6°
Realistic = true angular size
N E 164° A (5.2) B (5.6)

Sep: 356.1″ · PA: 164° · N up, E left

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

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