WDS 17360+2100 WAL 83 AC : NOTES
 
 
discov_num notes refcode
STF2190 A is a spectroscopic binary.
Herschel observed this pair and another nearby pair of similar rho and HJ_1833c
theta and same primary and secondary magnitudes he designated HJ 2807.
Offset from his STF2190 coordinates shows no bright star at location
of HJ 2807, however. Burnham says HJ 2807 is "undoubtedly identical Bu_1906
with STF2190" (= BDS 8082). Herschel's 1830.47 measure was accordingly
reassigned to STF2190. Gauchet disagrees with Burnham, but his Gau1925
separation does not agree with Herschel's and his coordinates precess
to location of a 7th magnitude star (BD+20@3531) 1.5m east of
Herschel's. Separation and magnitudes of this pair, designated
GAU 21, agree with Gauchet's, although the quadrant is reversed.
 
 
REFERENCES
 
 
refcode metd author reference
Bu_1906 Ma j Burnham, S.W. 1906QB821.B972.....
Bu_1906 +M Burnham Double Star Cat., 1906
Gau1925 Ma - Gauchet, P.L. 1925AJ.....36...67G
Gau1925 +Pa AJ 36, 67, 1925
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
34 WAL Wallenquist, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17360+2100 WAL 83 AC 1944 1 50 70.0 6.13 12.11 A7IV 173559.56+205946.6
17360+2100 WAL 83 AC 2000 2 37 76.7 6.13 12.11 A7IV 173559.56+205946.6
17360+2100 WAL 83 AC 2001 3 37 76.4 6.13 12.11 A7IV N D 173559.56+205946.6
17360+2100 WAL 83 AC 2015 4 37 76.8 6.13 12.71 A7IV N 173559.56+205946.6

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