HIP 89630
HIP 89630
Star
Sgr
Visible
Level 3
Medium telescope (6-8")
Physical Properties
Magnitude
6.54
Spectral Type
O7III:(n)((f))
Star Color
White
(B-V 0.11)
Position & Identifiers
RA
18h 17m 28.5s
Dec
-18° 27' 48.0"
Constellation
Sgr
HR
6841
HIP
89630
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Visibility
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Multiple Star System B: optical
Separation
8.6″
Companion Mag
13.0
Companion Sp
O8
Position Angle
169°
Star Colors
A: White
B: Blue
Discoverer
RST3170
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
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Stellar Fusion
Stellar Notes
Companion A3V, optical?
3.9735d, K1 107.1k/s, K2 122.9k/s, V0 +9.1k/s, m1sin3i 2.7, m2sin3i 2.3, a1sini 5.8, | a2sini 6.7.
Sgr OB4; exciting star of HII region S41; within 0.5d of S39.
Also classified O7If and O8I(f).
Survey Image
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