AR Cas
HIP 115990
DoubleStar
Cas
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.91
Range
4.82 - 4.96
Period
6.1 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B3IV
Star Color
Blue-white
(B-V -0.12)
Distance
544 ly
Position & Identifiers
RA
23h 30m 02.0s
Dec
+58° 32' 56.0"
Constellation
Cas
HR
8926
HIP
115990
Variable ID
AR Cas
Double Cat
16795
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Light Curve
Multiple Star System
Components
8
Component IDs
AC
Separation
0.7″
Companion Mag
9.3
Position Angle
1°
Star Colors
A: Blue-white
B: Yellow
Discoverer
STT 496
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.7″ · PA: 1° · 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
ADS 16795A, EA 4.84 - 4.98V, 6.0663309d; i 90d.
AB, 4.9, 9.3V, 1500y, sep. 1.1". CD, 8.2 A0Vn, 9.8v, sep. 1.6"; vsini of C, 210k/s. Component E, optical.
ADS 16795A, 6.0663d, K 56.7k/s, V0 -13.4k/s, asini 4.58. Alternate orbits 6.0663309d, K 54.18k/s, V0 -10.10k/s, | asini 4.44; 6.0668d, K 56.2k/s, V0 -11.0k/s, asini 4.6027. Apsidal period 1500 1800y.
Cas-Tau OB1.
0.003" for components CD.
Survey Image
Loading survey image…