21561+2420
Unique Name : 21561+2420STT 454AC
RA : 21 56 04.91
Dec : +24 20 23.6
Discoverer : STT
Discoverer Number : 454
Components : AC
First year : 1891
Last year : 2001
Observations : 8
First position angle : 265
Last position angle : 264
First separation : 42.9
Last separation : 43.0
Mag first component : 7.97
Mag second component : 11.8
Spectral type : A0
Primary proper motion RA : 12
Primary proper motion DEC : -12
Secondary proper motion RA : 8
Secondary proper motion DEC : -12
Durchmusterung :
Notes :
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