Sigma Cnc
HIP 43584; Sigma1 Cnc; 51 Cnc
HIP 43584; Sigma1 Cnc; 51 Cnc
DoubleStar
Cnc
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.66
Spectral Type
A8Vma s
Star Color
Yellow-white
(B-V 0.22)
Position & Identifiers
RA
08h 52m 34.6s
Dec
+32° 28' 27.0"
Constellation
Cnc
HR
3519
HIP
43584
Bayer
Sigma1
Flamsteed
51 Cnc
Double Cat
7057
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Visibility
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Multiple Star System
Components
4
Component IDs
AC
Separation
5.2″
Companion Mag
13.3
Position Angle
276°
Star Colors
A: Yellow-white
Discoverer
HU 1125
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 5.2″ · PA: 276° · 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
See HR 3464.
Survey Image
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