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HIP 91974

HIP 91974 DoubleStar Sgr Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 5.83
Spectral Type B5:V
Star Color White (B-V 0.05)

Position & Identifiers

RA 18h 44m 49.6s
Dec -25° 00' 40.0"
Constellation Sgr
HR 7035
HIP 91974

Visibility

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Multiple Star System

Separation 0.1″
Companion Mag 8.4
Position Angle 192°
Star Colors A: White
Discoverer CHR 78

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 192° A (5.8) B (8.4)

Sep: 0.1″ · PA: 192° · 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

Duplicity questionable.
Suspected double, 6.4, 6.6v, sep. 0.04", probably SB.
Sco-Cen assoc.

Survey Image

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