WDS 20423+4549 WAL 132 AC : NOTES
 
 
discov_num notes refcode
STT 411 AB: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 BKO Ladanyi, T. & Berko, E.
32 CTT Courtot, J.-F.
77 STT Struve, O.
114 WAL Wallenquist, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20423+4549 WAL 132 AC 2008 9 357 70.2 7.66 10.23 D 204220.31+454924.5
20423+4549 WAL 132 AC 2015 11 357 71.2 7.66 10.23 G2V N 204220.31+454924.5

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