Arneb
HIP 25985; Alpha Lep; 11 Lep
HIP 25985; Alpha Lep; 11 Lep
DoubleStar
Lep
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.58
Spectral Type
F0Ib
Star Color
Yellow-white
(B-V 0.21)
Distance
2194.9 ly
Position & Identifiers
RA
05h 32m 43.8s
Dec
-17° 49' 20.0"
Constellation
Lep
HR
1865
HIP
25985
Bayer
Alpha
Flamsteed
11 Lep
Double Cat
4146
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
35.4″
Companion Mag
11.2
Position Angle
157°
Star Colors
A: Yellow-white
Discoverer
HJ 3766
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 35.4″ · PA: 157° · 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
U-B values scatter from +0.07 to +0.386.
Probable magnetic star.
ARNEB.
Survey Image
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