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HIP 92833 — Double Star in Lyra

Magnitude 6.0m DoubleStar Lyra (Lyr) Visible
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1Physical Properties

Magnitude 6.02
Spectral Type G8III+A2 giant
Star Color Orange (B-V 0.91)

2Position & Identifiers

RA 18h 54m 52.5s
Dec +33° 58' 07.0"
Constellation Lyra (Lyr)
HR 7140
HIP 92833
HD 175635
SAO 67566
Double Cat 11834

3How easy to split?

Primary 6.0 mag Companion 7.6 mag Separation 45.4″
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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 May – Jul (peak: Jun)

5Multiple Star System Quadruple D: optical

Components 4 (quadruple)
Component IDs AC
Separation 45.4″
Companion Mag 7.6
Companion Sp G5III
Position Angle 349°
Star Colors A: Orange C: Orange
Discoverer SHJ 282
ABC fixed. B, 10.2v at 2". C, 7.69V, -0.08(B-V), -0.28(U-B), variously classified B8V, B9.5IV, A2, F3.

Separation over time

Measured 1823 → 2018 (195 y)
Separation drift 46.0" → 45.4" (-0.60")
Rate -0.0031" / y
PA drift 350° → 349° (-1°, -0.005°/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 349°

A: 6.0 · B: 7.6 · Sep: 45.4″ · PA: 349° · 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

9

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

ADS 11834A.
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