Upsilon Lup

HIP 75439; Upsilon Lup DoubleStar Lup Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 5.37

Spectral Type A0pSi

Star Color Blue-white (B-V -0.11)

Distance 407.7 ly

Position & Identifiers

RA 15h 24m 44.9s

Dec -39° 42' 37.0"

Constellation Lup

HR 5719

HIP 75439

Bayer Upsilon

Visibility

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Multiple Star System

Separation 1.6″

Companion Mag 10.9

Position Angle 58°

Star Colors A: Blue-white

Discoverer RST1839

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 1.6″ · PA: 58° · 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

Variable Star

Spectrum variable.

Group/Cluster

Member of Pleiades group.

Survey Image

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