HIP 51557
HIP 51557
DoubleStar
Cha
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
7.07
Spectral Type
B5III-IV
Star Color
Blue-white
(B-V -0.08)
Position & Identifiers
RA
10h 31m 51.0s
Dec
-81° 55' 16.0"
Constellation
Cha
HR
4161
HIP
51557
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Visibility
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Multiple Star System
Separation
41.1″
Companion Mag
9.1
Position Angle
238°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
HJ 5444
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 41.1″ · PA: 238° · 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
Companion A8III, optical.
Survey Image
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