5 Lac
HIP 111022; 5 Lac
DoubleStar
Lac
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.36
Spectral Type
M0II+B8V
Star Color
Red
(B-V 1.68)
Distance
543.6 ly
Position & Identifiers
RA
22h 29m 31.8s
Dec
+47° 42' 25.0"
Constellation
Lac
HR
8572
HIP
111022
Flamsteed
5 Lac
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Visibility
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Multiple Star System
Separation
0.1″
Companion Sp
B8V
Position Angle
43°
Star Colors
A: Red
B: Blue-white
Discoverer
MCA 71
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 43° · 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
41.95y, K 12.2k/s, V0 -3.4k/s, asini 2240. Unresolved by speckle interferometry. SKYLAB indicates cool star with | hot companion. vsini of B-type component 90:k/s.
Survey Image
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