HIP 4440
HIP 4440
DoubleStar
Cas
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.55
Spectral Type
B9IVn
Star Color
Blue-white
(B-V -0.07)
Distance
465.9 ly
Position & Identifiers
RA
00h 56m 47.1s
Dec
+60° 21' 46.0"
Constellation
Cas
HR
266
HIP
4440
Double Cat
784
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
0.2″
Companion Mag
6.6
Companion Sp
B9V+
Position Angle
9°
Star Colors
A: Blue-white
B: Blue-white
Discoverer
BU 1099
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.2″ · PA: 9° · 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
AB 6.0 B8V, 6.6 B9V, 83.4y, a = 0.252". Total mass, 6 solar. Primary is a mercury-manganese star.
ADS 784A, 4.2424d, K 88.2k/s, V0 -3.2k/s, msin3i 1.65, asini 4.57.
Survey Image
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