Phi Leo

HIP 55084; Phi Leo; 74 Leo DoubleStar Leo Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 4.47

Spectral Type A7IVn

Star Color Yellow-white (B-V 0.21)

Distance 171.7 ly

Position & Identifiers

RA 11h 16m 39.7s

Dec -03° 39' 06.0"

Constellation Leo

HR 4368

HIP 55084

Bayer Phi

Flamsteed 74 Leo

Visibility

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Multiple Star System

Separation 86.8″

Companion Mag 9.8

Position Angle 291°

Star Colors A: Yellow-white

Discoverer SHJ 121

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 86.8″ · PA: 291° · N up, E left

Resolved · 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

Spectral

Shell star. Shell spectrum variable.

Survey Image

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