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HIP 91552

HIP 91552 DoubleStar Lyr Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 6.45
Spectral Type A6m
Star Color Yellow-white (B-V 0.21)

Position & Identifiers

RA 18h 40m 12.2s
Dec +38° 22' 02.0"
Constellation Lyr
HR 7019
HIP 91552

Visibility

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Multiple Star System

Separation 0.1″
Companion Mag 8.1
Position Angle 76°
Star Colors A: Yellow-white
Discoverer HDS2644

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 76° A (6.5) B (8.1)

Sep: 0.1″ · PA: 76° · 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.

Stellar Notes

Also classified A7-F2m.

Survey Image

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