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Nu Eri

HIP 21444; Nu Eri; 48 Eri Star Eri Visible Level 1 Naked eye / Binoculars
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Physical Properties

Magnitude 3.93
Range 3.87 - 4.01
Period 4.2 hours
Variable Type Beta Cephei (Pulsating)
Spectral Type B2IV
Star Color Blue (B-V -0.21)
Distance 674 ly

Position & Identifiers

RA 04h 36m 19.1s
Dec -03° 21' 09.0"
Constellation Eri
HR 1463
HIP 21444
Bayer Nu
Flamsteed 48 Eri
Variable ID Nu Eri

Visibility

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Light Curve

Multiple Star System

Separation 51.5″
Companion Mag 13.3
Position Angle 171°
Star Colors A: Blue
Discoverer BUP 64

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

Beta C 3.4 - 3.60p, 0.17790414d, changing. Probable interference periods 0.1779 and 0.1735d with beat period of | 7.0256d. Possibly also E, 103.9d.
Ori OB1.
0.19d.

Survey Image

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