30 Sgr
HIP 92480; 30 Sgr
DoubleStar
Sgr
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
6.61
Spectral Type
A7III
Star Color
Yellow-white
(B-V 0.38)
Position & Identifiers
RA
18h 50m 50.5s
Dec
-22° 09' 44.0"
Constellation
Sgr
HR
7088
HIP
92480
Flamsteed
30 Sgr
Double Cat
11731
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Visibility
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Multiple Star System
Separation
18.0″
Companion Mag
13.0
Position Angle
254°
Star Colors
A: Yellow-white
Discoverer
BU 1300
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 18.0″ · PA: 254° · 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
Hyades group.
Survey Image
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