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QS Aql

Observable Variable Star Excellent (62/100)

Range: 5.9 - 6.0, Period: 2.5d, Type: EA

HIP 96840 VariableStar Aql Visible Level 3 Medium telescope (6-8") - Monitor brightness changes
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Physical Properties

Magnitude 6.01
Variable Type Eclipsing Binary (Algol-type)
Spectral Type B5V
Star Color Blue-white (B-V -0.08)

Position & Identifiers

RA 19h 41m 05.5s
Dec +13° 48' 56.0"
Constellation Aql
HR 7486
HIP 96840
Variable ID QS Aql

Visibility

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Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

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Multiple Star System

Separation 0.1″
Companion Mag 6.8
Companion Sp A8IV
Position Angle 319°
Star Colors A: Blue-white B: Yellow-white
Discoverer KUI 93

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 319° A (6.0) B (6.8)

Sep: 0.1″ · PA: 319° · 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

Primary of visual double, EA 5.93 - 6.05V, 2.513294d. Double unresolved in 1961 when period changed sharply.
Speckle interferometry 1985.5 gives sep. 0.178".
2.4968d, K 47.3k/s, V0 -14.2k/s, asini 1.62. Equal components.
Member of the local association (Pleiades group).

Survey Image

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