HIP 28790
Observable Double Star
Good (57/100)
Sep: 5.8", Companion: mag 9.0
HIP 28790
DoubleStar
Pup
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.93
Spectral Type
F4V
Star Color
Yellow
(B-V 0.49)
Distance
98.8 ly
Position & Identifiers
RA
06h 04m 40.2s
Dec
-45° 04' 44.0"
Constellation
Pup
HR
2158
HIP
28790
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
5.8″
Companion Mag
9.0
Position Angle
214°
Star Colors
A: Yellow
B: Orange
Discoverer
HJ 3834
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 5.8″ · PA: 214° · 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 5.9, 9.4v sep. 5", CPM with HR 2157.
0.046".
Survey Image
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