25 Ser

HIP 77227; 25 Ser DoubleStar Ser Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 5.40

Spectral Type B8III

Star Color Blue-white (B-V -0.03)

Position & Identifiers

RA 15h 46m 05.6s

Dec -01° 48' 16.0"

Constellation Ser

HR 5863

HIP 77227

Flamsteed 25 Ser

Visibility

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Multiple Star System

Separation 0.2″

Position Angle 63°

Star Colors A: Blue-white

Discoverer ISO 2

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.2″ · PA: 63° · 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

Spectroscopic Binary

38.937d, K 53.6k/s, V0 -12.6k/s, asini 17.2. Unresolved by speckle interferometry.

Survey Image

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