X Oph
Excellent (74/100)
HIP 91389
VariableStar
Ophiuchus
(Oph)
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
6.40
Range
5.9 - 8.6
Period
329 days
Variable Type
Mira (Long-period Pulsating)
Spectral Type
M6IIIe+K1III
Star Color
Red
(B-V 1.32)
Distance
297 ly
Position & Identifiers
RA
18h 38m 21.0s
Dec
+08° 50' 02.0"
Constellation
Ophiuchus
(Oph)
HR
7002
HIP
91389
Variable ID
X Oph
Double Cat
11524
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Comparison Stars for X Oph (5.9–9.2)
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Spectral Classification
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Stellar Fusion
Stellar Notes
ADS 11524A, M 5.9 - 9.2v, 334.39d.
Var. MBE+K1III, 8.8, 485.3y, a = 0.34". Masses A, 15.9; B, 5.0 solar.
0.002".
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