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13 Vul

Observable Double Star Fair (27/100)

Sep: 1.5", Companion: mag 7.4

HIP 97886; 13 Vul DoubleStar Vulpecula (Vul) Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 4.58
Spectral Type B9.5III
Star Color Blue-white (B-V -0.06)
Distance 362 ly

Position & Identifiers

RA 19h 53m 27.7s
Dec +24° 04' 47.0"
Constellation Vulpecula (Vul)
HR 7592
HIP 97886
Flamsteed 13 Vul

Visibility

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Multiple Star System

Separation 1.5″
Companion Mag 7.4
Position Angle 245°
Star Colors A: Blue-white B: Yellow-white
Discoverer DJU 4

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 245° A (4.6) B (7.4)

Sep: 1.5″ · PA: 245° · N up, E left

Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″

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