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HIP 94076 — Double Star in Lyra

Magnitude 6.7m DoubleStar Lyra (Lyr) Visible
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1Physical Properties

Magnitude 6.74
Spectral Type G1V
Star Color Yellow (B-V 0.63)
Distance 130 ly

2Position & Identifiers

RA 19h 09m 04.4s
Dec +34° 36' 02.0"
Constellation Lyra (Lyr)
HR 7272
HIP 94076
HD 178911
SAO 67879
Double Cat 12101

3How easy to split?

Primary 6.7 mag Companion 7.9 mag Separation 16.0″
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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Easy
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season Jun – Aug (peak: Jul)

5Multiple Star System Quadruple C: optical

Components 4 (quadruple)
Component IDs AB
Separation 16.0″
Companion Mag 7.9
Companion Sp G5
Position Angle 262°
Star Colors A: Yellow B: Orange
Discoverer STF2474
AB binary, B is G5. Speckle interferometry indicates a fourth companion at 0.089" from A.

Separation over time

Measured 1823 → 2019 (196 y)
Separation drift 17.1" → 16.0" (-1.10")
Rate -0.0056" / y
PA drift 260° → 262° (+2°, +0.010°/y)

Slow change over generations — observable in lifetime comparisons.

Measured from the WDS observational archive. No orbital solution has been derived — most likely the period is too long to fit an orbit to the available measurement arc.

Eyepiece View

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80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 262°

A: 6.7 · B: 7.9 · Sep: 16.0″ · PA: 262° · N up, E right

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

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Size Comparison

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Spectral Classification

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Hertzsprung-Russell Diagram

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Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

13

Stellar Fusion

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14Stellar Notes

0.044".
15

Light Travel Time Machine

16

Relativistic Travel

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