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HIP 87833; Gamma Dra; 33 Dra

HIP 87833; Gamma Dra; 33 Dra DoubleStar Dra Visible Level 3 Medium telescope (6-8") - Requires steady seeing
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Physical Properties

Magnitude 2.23
Spectral Type K5III
Star Color Red (B-V 1.52)
Distance 154.3 ly

Position & Identifiers

RA 17h 56m 36.4s
Dec +51° 29' 20.0"
Constellation Dra
HR 6705
HIP 87833
Bayer Gamma
Flamsteed 33 Dra
Double Cat 10923

Visibility

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Multiple Star System

Components 7
Component IDs AG
Separation 20.3″
Companion Mag 13.4
Position Angle 151°
Star Colors A: Red
Discoverer BU 633

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 151° A (2.2) B (13.4)

Sep: 20.3″ · PA: 151° · 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

Amp. 0.08V. He 10830 variable.
Ultraviolet FeII emission.
ETAMIN; Etanin; Ettanin; Rastaban; Rasaben; Zenith Star.

Survey Image

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