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Gamma PsA

Observable Double Star Good (59/100)

Sep: 4.1", Companion: mag 8.2

HIP 112948; Gamma PsA; 22 PsA DoubleStar PsA Visible Level 3 Medium telescope (6-8") - Requires steady seeing
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Physical Properties

Magnitude 4.46
Spectral Type A0III*
Star Color Blue-white (B-V -0.04)
Distance 75.8 ly

Position & Identifiers

RA 22h 52m 31.6s
Dec -32° 52' 32.0"
Constellation PsA
HR 8695
HIP 112948
Bayer Gamma
Flamsteed 22 PsA

Visibility

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Multiple Star System

Separation 4.1″
Companion Mag 8.2
Position Angle 255°
Star Colors A: Blue-white B: Yellow
Discoverer HJ 5367

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 255° A (4.5) B (8.2)

Sep: 4.1″ · PA: 255° · N up, E left

Resolved · 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

Binary, companion F5V.
Sirius group.
Also classified A0V and B9.5IV.
0.015".

Survey Image

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