3 Sgr
Observable Variable Star
Excellent (62/100)
Range: 4.2 - 4.8, Period: 7.0d
HIP 87072; 3 Sgr
VariableStar
Sgr
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
4.54
Spectral Type
F7II
Star Color
Orange
(B-V 0.80)
Distance
93.2 ly
Position & Identifiers
RA
17h 47m 33.6s
Dec
-27° 49' 51.0"
Constellation
Sgr
HR
6616
HIP
87072
Flamsteed
3 Sgr
Variable ID
X Sgr
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Visibility
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Comparison Stars for 3 Sgr (4.2–4.8)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
0.0″
Companion Mag
8.1
Position Angle
123°
Star Colors
A: Orange
Discoverer
LIC 1
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 123° · N up, E left
Unresolved · 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
CDelta 4.24 - 4.84V, 7.01225d.
Survey Image
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