Rho Cap
Observable Double Star
Fair (24/100)
Sep: 1.7", Companion: mag 6.9
HIP 101027; Rho Cap; 11 Cap
DoubleStar
Cap
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.78
Spectral Type
F2IV
Star Color
Yellow-white
(B-V 0.38)
Distance
69.4 ly
Position & Identifiers
RA
20h 28m 51.6s
Dec
-17° 48' 49.0"
Constellation
Cap
HR
7822
HIP
101027
Bayer
Rho
Flamsteed
11 Cap
Double Cat
13887
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Components
5
Component IDs
AD
Separation
1.7″
Companion Mag
6.9
Position Angle
189°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
SHJ 323
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.7″ · PA: 189° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
AB binary. B, 8.0v at 0.8".
Sirius group.
0.017".
Survey Image
Loading survey image…