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HIP 90253

HIP 90253 DoubleStar Ser Visible Level 5 Expert level - Requires steady seeing
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Physical Properties

Magnitude 6.15
Spectral Type F6III+A9III
Star Color Yellow-white (B-V 0.37)
Distance 297 ly

Position & Identifiers

RA 18h 24m 57.0s
Dec -01° 34' 46.0"
Constellation Ser
HR 6898
HIP 90253
Double Cat 11324

Visibility

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Multiple Star System

Separation 0.9″
Companion Mag 7.2
Position Angle 354°
Star Colors A: Yellow-white B: Yellow
Discoverer AC 11

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 354° A (6.2) B (7.2)

Sep: 0.9″ · PA: 354° · 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

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Stellar Fusion

Stellar Notes

6.8 F6III, 7.0 A7IV, 240y, a = 0.59". Combined mag., colors.

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