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5 Lac

HIP 111022; 5 Lac Star Lac Visible Level 1 Naked eye / Binoculars
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Physical Properties

Magnitude 4.36
Range 4.23 - 4.43
Variable Type LC
Spectral Type M0II+B8V
Star Color Red (B-V 1.68)
Distance 544 ly

Position & Identifiers

RA 22h 29m 31.8s
Dec +47° 42' 25.0"
Constellation Lac
HR 8572
HIP 111022
Flamsteed 5 Lac

Visibility

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Multiple Star System

Separation 0.1″
Companion Sp B8V
Position Angle 43°
Star Colors A: Red B: Blue-white
Discoverer MCA 71

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 Fusion

Stellar Notes

41.95y, K 12.2k/s, V0 -3.4k/s, asini 2240. Unresolved by speckle interferometry. SKYLAB indicates cool star with | hot companion. vsini of B-type component 90:k/s.

Survey Image

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