HIP 99920
HIP 99920
DoubleStar
Sgr
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.39
Spectral Type
M4III
Star Color
Red
(B-V 1.54)
Position & Identifiers
RA
20h 16m 23.7s
Dec
-36° 27' 16.0"
Constellation
Sgr
HR
7728
HIP
99920
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
36.8″
Companion Mag
11.2
Position Angle
229°
Star Colors
A: Red
Discoverer
HJ 5183
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 36.8″ · PA: 229° · 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.
Survey Image
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