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54 Sgr

HIP 96808; 54 Sgr DoubleStar Sgr Visible Level 3 Medium telescope (6-8") - Requires steady seeing
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Physical Properties

Magnitude 6.20
Spectral Type K2III+F8V
Star Color Orange (B-V 1.13)
Distance 88.2 ly

Position & Identifiers

RA 19h 40m 43.4s
Dec -16° 17' 36.0"
Constellation Sgr
HR 7476
HIP 96808
Flamsteed 54 Sgr
Double Cat 12767

Visibility

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Multiple Star System

Components 4
Separation 45.2″
Companion Mag 12.7
Companion Sp F8V
Position Angle 279°
Star Colors A: Orange B: Yellow
Discoverer HJ 599

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 279° A (6.2) B (12.7)

Sep: 45.2″ · PA: 279° · 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

Amp. 0.09V.
Primary is close double, combined colors. Mag. for blend 5.30V. Component B, 12.6v at 38" optical. C, 8.9 F8V | at 46" physical.

Survey Image

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