WDS 19379+4917 HJ 1428 BC : NOTES
 
 
discov_num notes refcode
HJ 1428 Same as STF2559.
AB: 1951.524 : In Hipparcos Catalog, B component is HIP 96569: there
is no such star in the position of HIP 96569 in DSS plates. So, the
measurement of 1991 (realized from Hipparcos) and included in WDS
database probably is not valid. B magnitude uncertain.
1991.521: proper motion of B is DEC 0"012+-0"004 and AR 0"014+-0"009.
AC: 1991.521: Annual proper motion of C is DEC -0"004 and AR -0"0010
(in Tycho catalog: DEC -0"003 and AR -0"0004).
BD: 1951.524: WDS indicates data for C and D components.
No star is near C coordinates. Realized measure for B and D components
are very coincident with data for CD indicated in WDS. In WDS where
say components CD, possibly it is BD. FMR1999f
 
 
REFERENCES
 
 
refcode metd author reference
FMR1999f C j Rica Romero, F.M. .
FMR1999f Tribuna de Astronomia y Universo, #3, Sep 1999
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19379+4917 HJ 1428 BC 2006 2 259 30.8 11.97 10.94 N D 193753.91+491644.3
19379+4917 HJ 1428 BC 2015 5 259 30.6 10.19 10.97 N 193753.91+491644.3
19379+4917 HJ 1428 BC 2018 6 259 30.5 10.19 10.97 N 193753.91+491644.3

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