HIP 21042
HIP 21042
DoubleStar
Eri
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.96
Spectral Type
K0II
Star Color
Orange
(B-V 1.00)
Position & Identifiers
RA
04h 30m 40.3s
Dec
-35° 39' 13.0"
Constellation
Eri
HR
1439
HIP
21042
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Visibility
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Multiple Star System
Separation
33.7″
Companion Mag
13.5
Position Angle
40°
Star Colors
A: Orange
Discoverer
HJ 3659
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 33.7″ · PA: 40° · 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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