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V3792 Sgr

Observable Variable Star Excellent (61/100)

Range: 6.4 - 6.9, Period: 2.2d, Type: EB

HIP 88905 VariableStar Sgr Visible Level 2 Small telescope (4") - Monitor brightness changes
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Physical Properties

Magnitude 6.61
Variable Type Eclipsing Binary (Beta Lyrae-type)
Spectral Type B3III
Star Color White (B-V 0.02)

Position & Identifiers

RA 18h 08m 54.1s
Dec -25° 28' 21.0"
Constellation Sgr
HR 6773
HIP 88905
Variable ID V3792 Sgr

Visibility

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Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

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Multiple Star System

Separation 13.5″
Companion Mag 8.8
Position Angle 64°
Star Colors A: White B: Yellow-white
Discoverer WNO 21

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 64° A (6.6) B (8.8)

Sep: 13.5″ · PA: 64° · 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

EB 6.43 - 6.88V, 2.24815d. Mass transfer indicated. The var. is probably the 8.85V companion of the visual double. GCVS | gives combined light.
Visual companion is blue.
2.2481d, K 151k/s, V0 -6k/s, msin3i 6.42, asini 4.66. Mean mass components 5.5 solar.

Survey Image

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