18153-1900
Unique Name : 18153-1900BU 284AF
RA : 18 15 16.76
Dec : -18 59 33.9
Discoverer : BU
Discoverer Number : 284
Components : AF
First year : 1890
Last year : 2000
Observations : 7
First position angle : 269
Last position angle : 267
First separation : 138.9
Last separation : 138.7
Mag first component : 7.09
Mag second component : 9.5
Spectral type : B1Ib
Primary proper motion RA : -1
Primary proper motion DEC : -2
Secondary proper motion RA : 1
Secondary proper motion DEC : -8
Durchmusterung :
Notes :
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