53 Cnc
HIP 43575; 53 Cnc
DoubleStar
Cnc
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
6.23
Range
5.9 - 6.37
Period
27.000 days
Variable Type
Semi-Regular Variable (Short Period)
Spectral Type
M3III
Star Color
Red
(B-V 1.62)
Distance
3261.6 ly
Position & Identifiers
RA
08h 52m 28.6s
Dec
+28° 15' 33.0"
Constellation
Cnc
HR
3521
HIP
43575
Flamsteed
53 Cnc
Variable ID
BO Cnc
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Visibility
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Light Curve
Multiple Star System
Separation
43.7″
Companion Mag
11.7
Position Angle
335°
Star Colors
A: Red
Discoverer
HJ 460
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 43.7″ · PA: 335° · 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
Lb? 6.23 - 6.37V.
Magnetic star.
Lines of higher excitation potential show higher RV.
BAC and others call this Rho1, HR 3522 Rho2, and HR 3540 Rho3.
Survey Image
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