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HIP 99579

HIP 99579 DoubleStar Cyg Visible Level 3 Medium telescope (6-8") - Requires steady seeing
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Physical Properties

Magnitude 6.01
Spectral Type K2.5III
Star Color Orange (B-V 1.14)

Position & Identifiers

RA 20h 12m 31.8s
Dec +51° 27' 49.0"
Constellation Cyg
HR 7726
HIP 99579
Double Cat 13535

Visibility

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Multiple Star System

Components 5
Component IDs AB
Separation 4.4″
Companion Mag 10.6
Position Angle 82°
Star Colors A: Orange
Discoverer AC 17

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 82° A (6.0) B (10.6)

Sep: 4.4″ · PA: 82° · N up, E left

Resolved · 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

AB CPM.

Survey Image

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