Lambda Oct
Observable Double Star
Good (59/100)
Sep: 3.3", Companion: mag 7.3
HIP 107843; Lambda Oct
DoubleStar
Oct
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.29
Spectral Type
G8-K0III
Star Color
Orange
(B-V 0.75)
Distance
296.5 ly
Position & Identifiers
RA
21h 50m 54.3s
Dec
-82° 43' 09.0"
Constellation
Oct
HR
8280
HIP
107843
Bayer
Lambda
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Visibility
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Multiple Star System
Separation
3.3″
Companion Mag
7.3
Position Angle
62°
Star Colors
A: Orange
B: Red
Discoverer
HJ 5278
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 3.3″ · PA: 62° · 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
Binary. Companion A3.
Survey Image
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