48 Cas
HIP 9480; 48 Cas
DoubleStar
Cas
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.54
Spectral Type
A3IV
Star Color
Yellow-white
(B-V 0.16)
Distance
93.2 ly
Position & Identifiers
RA
02h 01m 57.4s
Dec
+70° 54' 25.0"
Constellation
Cas
HR
575
HIP
9480
Flamsteed
48 Cas
Double Cat
1598
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
0.6″
Companion Mag
6.7
Position Angle
320°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
BU 513
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.6″ · PA: 320° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
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 Notes
ADS 1598B. B-A varies 1.5 - 3.0v.
AB 4.71 A4V, 6.41 F2V, 60.44y, a = 0.653". Perturbation periods of 26 or 39y suspected. C, 13.6v, 24" CPM; D, 13.0v 48" | optical. Additional unseen companion suspected.
ADS 1598A, 20,146.1d, K 4.0k/s, V0 -8.5k/s, asini 776.
Sirius group?
0.027".
Also called A Cas.
Survey Image
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