43 Per
HIP 18453; 43 Per
DoubleStar
Per
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.28
Spectral Type
F5IV
Star Color
Yellow-white
(B-V 0.41)
Distance
90.6 ly
Position & Identifiers
RA
03h 56m 36.5s
Dec
+50° 41' 43.0"
Constellation
Per
HR
1210
HIP
18453
Flamsteed
43 Per
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
75.3″
Companion Mag
10.7
Position Angle
31°
Star Colors
A: Yellow-white
B: Yellow-white
Discoverer
S 440
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 75.3″ · PA: 31° · N up, E left
Resolved · 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
AB CPM. Component C, 11.4v at 101" optical. P, 12.5v at 279".
30.4380d, K 51.9k/s, V0 +25.1k/s, msin3i 0.910, asini 16.9; alternate orbit 30.4391d, K50.6k/s, | msin3i 0.82, asini 15.53; vsini both components <17k/s.
IR source in this direction corresponds to a Seyfert galaxy.
Hyades moving group.
Survey Image
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