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HIP 94789 — Double Star in Pavo

Magnitude 5.5m DoubleStar Pavo (Pav) Visible
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1Physical Properties

Magnitude 5.53
Spectral Type A5V+A8V
Star Color Yellow-white (B-V 0.18)

2Position & Identifiers

RA 19h 17m 12.0s
Dec -66° 39' 41.0"
Constellation Pavo (Pav)
HR 7278
HIP 94789
HD 179366
SAO 254515
SIMBAD

3How easy to split?

Primary 5.5 mag Companion 6.4 mag Separation 0.5″
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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. V. hard V. hard V. hard
150mm Newt. V. hard+ V. hard+ V. hard+
C8 203mm V. hard+ V. hard+ V. hard+
Easy Medium Hard Very hard Impossible

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

To reach "Medium" at Bortle 3, you'd need at least a 420 mm reflector.

4Visibility

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Best season Jun – Aug (peak: Jul)

5Multiple Star System

Separation 0.5″
Companion Mag 6.4
Companion Sp A8V
Position Angle 355°
Star Colors A: Yellow-white B: Yellow-white
Discoverer GLE 3
6.1 A2N, 6.5, 157y, a = 0.56".

Separation over time

Period: 163.7 y Eccentricity: 0.599 Now: 0.53", PA 2° + 0.01" in 5 years
0.00" 0.16" 0.32" 0.48" 0.64" 2025 2030 2035 2040 2045 0.53"

Apparent separation over time, computed from ORB6 orbital elements. Steep curves indicate fast-changing pairs — catch them while they're splittable.

Eyepiece View

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80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 355°

A: 5.5 · B: 6.4 · Sep: 0.5″ · PA: 355° · N up, E right

Unresolved · 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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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
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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.

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Stellar Fusion

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

NGC 6734
Hard+
Elliptical galaxy
Galaxy mag 12.91 1.6° Pavo
Kappa Pav
Medium+
Variable star, range 3.9–4.8
Variable Star mag 4.44 2.1° Pavo
C93
NGC 6752
Easy
Large bright globular cluster
Globular Cluster mag 5.4 6.7° Pavo
Xi Pav
Medium
Easy double, sep 3.7″
Double Star mag 4.36 7.8° Pavo
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