Rho CrB
HIP 78459; Rho CrB; 15 CrB
DoubleStar
Corona Borealis
(CrB)
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.41
Spectral Type
G0+VaFe-1
Star Color
Yellow
(B-V 0.60)
Distance
82 ly
Position & Identifiers
RA
16h 01m 02.7s
Dec
+33° 18' 13.0"
Constellation
Corona Borealis
(CrB)
HR
5968
HIP
78459
Bayer
Rho
Flamsteed
15 CrB
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Visibility
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Multiple Star System
Separation
147.8″
Companion Mag
10.5
Position Angle
45°
Star Colors
A: Yellow
Discoverer
S 676
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 147.8″ · PA: 45° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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 Fusion
Exoplanets
4 known planets
| Planet | Radius | Mass | Period | Distance |
|---|---|---|---|---|
| rho CrB e | 1.77R⊕ | 3.8M⊕ | 12.9d | 57ly |
| rho CrB b | 13.70R⊕ | 1.09M♃ | 39.8d | 57ly |
| rho CrB c | 5.78R⊕ | 28.2M⊕ | 102.2d | 57ly |
| rho CrB d | 4.94R⊕ | 21.6M⊕ | 282.2d | 57ly |
Habitable Zone
Size & Mass Comparison
Stellar Notes
Companion optical.
Light Travel Time Machine
Relativistic Travel
Survey Image
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