Phi Sgr

HIP 92041; Phi Sgr; 27 Sgr DoubleStar Sgr Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 3.17

Spectral Type B7IV

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

Distance 239.2 ly

Position & Identifiers

RA 18h 45m 39.4s

Dec -26° 59' 27.0"

Constellation Sgr

HR 7039

HIP 92041

Bayer Phi

Flamsteed 27 Sgr

Visibility

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Multiple Star System

Separation 0.2″

Position Angle 10°

Star Colors A: Blue-white

Discoverer OCC9185

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.2″ · PA: 10° · 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

Double Star

4.1, 4.1v, sep. 0.13", doubtful.

Survey Image

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