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17 Cap

HIP 102487; 17 Cap Star Cap Visible Level 2 Small telescope (4")
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Physical Properties

Magnitude 5.93
Spectral Type A0
Star Color White (B-V 0.04)

Position & Identifiers

RA 20h 46m 10.0s
Dec -21° 30' 51.0"
Constellation Cap
HR 7937
HIP 102487
Flamsteed 17 Cap

Visibility

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Multiple Star System

Separation 0.0″
Companion Mag 6.8
Position Angle -1°
Star Colors A: White
Discoverer OCC9196

Eyepiece View

15x Dawes: 1.9″ TFOV: 3.3°
Realistic = true angular size
N E A (5.9) B (6.8)

Sep: 0.0″ · PA: -1° · N up, E left

Unresolved · 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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