55 Leo
Physical Properties
Magnitude
5.91
Spectral Type
F2/3III/V
Star Color
Yellow-white
(B-V 0.42)
Distance
233 ly
Position & Identifiers
RA
10h 55m 42.4s
Dec
+00° 44' 13.0"
Constellation
Leo
HR
4265
HIP
53423
Flamsteed
55 Leo
Double Cat
7982
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Visibility
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Multiple Star System
Components
3
Separation
1.1″
Companion Mag
9.0
Position Angle
48°
Star Colors
A: Yellow-white
B: Orange
Discoverer
BU 1076
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.1″ · PA: 48° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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 Fusion
Stellar Notes
AB 6.1 F2III, 8.0, 128.34y, a = 0.823", or 90y, a = 0.75. Visual primary is SB, sep. 0.001".
ADS 7982A.
Also classified F3V.
0.030".
Light Travel Time Machine
Relativistic Travel
Survey Image
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