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HIP 89630

HIP 89630 Star Sagittarius (Sgr) Visible Level 3 Medium telescope (6-8")
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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 Sagittarius (Sgr)
HR 6841
HIP 89630

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Spectral Classification

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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).

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