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HIP 91918

HIP 91918 DoubleStar Sgr Visible Level 4 Large telescope (10"+) - Requires steady seeing
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Physical Properties

Magnitude 4.87
Spectral Type B2.5V
Star Color Blue (B-V -0.18)

Position & Identifiers

RA 18h 44m 19.4s
Dec -35° 38' 31.0"
Constellation Sgr
HR 7029
HIP 91918

Visibility

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Multiple Star System

Separation 9.7″
Companion Mag 12.6
Position Angle 314°
Star Colors A: Blue
Discoverer B 942

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 314° A (4.9) B (12.6)

Sep: 9.7″ · PA: 314° · 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

Sco-Cen assoc.; member of the Sco-Cen cluster; member of Pleiades group.

Survey Image

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