HIP 89020
Observable Double Star
Good (55/100)
Sep: 4.1", Companion: mag 8.0
HIP 89020
DoubleStar
Sgr
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.53
Spectral Type
K1II
Star Color
Orange
(B-V 0.97)
Distance
815.4 ly
Position & Identifiers
RA
18h 10m 05.7s
Dec
-30° 43' 43.0"
Constellation
Sgr
HR
6780
HIP
89020
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Visibility
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Multiple Star System
Separation
4.1″
Companion Mag
8.0
Position Angle
345°
Star Colors
A: Orange
Discoverer
BU 245
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.1″ · PA: 345° · 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. Combined mag., colors. Component B is F0IV or F0V.
Also classified K0IIIab.
Comp. B, -17k/s.
Survey Image
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