2 CVn
Observable Double Star
Excellent (63/100)
Sep: 11.6", Companion: mag 8.7
HIP 59831; 2 CVn
DoubleStar
CVn
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.66
Spectral Type
M1III+F7V
Star Color
Red
(B-V 1.55)
Distance
815.4 ly
Position & Identifiers
RA
12h 16m 07.6s
Dec
+40° 39' 37.0"
Constellation
CVn
HR
4666
HIP
59831
Flamsteed
2 CVn
Double Cat
8489
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
11.6″
Companion Mag
8.7
Companion Sp
F7V
Position Angle
260°
Star Colors
A: Red
B: Yellow
Discoverer
STF1622
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 11.6″ · PA: 260° · N up, E left
Resolved · 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
Binary. Companion 8.77V, +0.57(B-V), +0.09(U-B), F7V.
Survey Image
Loading survey image…