V640 Cas
Fair (26/100)
HIP 518
DoubleStar
Cas
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.96
Range
5.97 - 5.98
Period
48 days
Variable Type
R
Spectral Type
G5V
Star Color
Yellow
(B-V 0.67)
Distance
69 ly
Position & Identifiers
RA
00h 06m 16.0s
Dec
+58° 26' 12.0"
Constellation
Cas
HR
5
HIP
518
Variable ID
V640 Cas
Double Cat
61
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Light Curve
Multiple Star System
Separation
1.5″
Companion Mag
7.3
Companion Sp
G8V
Position Angle
8°
Star Colors
A: Yellow
B: Orange
Discoverer
STF3062
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.5″ · PA: 8° · 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 Fusion
Stellar Notes
Amp. 0.066V, 1.0819d.
6.43 dG4, 7.19 dG8, 106.83y, a = 1.432". Component B has possible invisible companion, period 6.9y.
0.051".
Survey Image
Loading survey image…