HIP 20109
HIP 20109
DoubleStar
Dor
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.09
Spectral Type
F7IV-V
Star Color
Yellow
(B-V 0.49)
Position & Identifiers
RA
04h 18m 40.0s
Dec
-52° 51' 36.0"
Constellation
Dor
HR
1365
HIP
20109
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Visibility
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Multiple Star System
Separation
270.4″
Companion Mag
7.8
Companion Sp
F5V
Position Angle
236°
Star Colors
A: Yellow
B: Yellow-white
Discoverer
SHY 462
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 270.4″ · PA: 236° · 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.
Survey Image
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