30 Dra

HIP 87212; 30 Dra DoubleStar Dra Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 5.02

Spectral Type A2V

Star Color White (B-V 0.02)

Position & Identifiers

RA 17h 49m 04.3s

Dec +50° 46' 52.0"

Constellation Dra

HR 6656

HIP 87212

Flamsteed 30 Dra

Visibility

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Multiple Star System

Separation 209.1″

Companion Mag 17.0

Position Angle 141°

Star Colors A: White

Discoverer LEP 86

Eyepiece View

Telescope Eyepiece

32x Dawes: 1.9″ TFOV: 1.6°

Seeing

Scale Realistic = true angular size

Sep: 209.1″ · PA: 141° · 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.

Survey Image

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