WDS 17178+2844 S 686 (HD 156680) : NOTES
 
 
discov_num notes refcode
S 686 B is BD+28@2714.
 
 
REFERENCES
 
 
refcode metd author reference
S__1826 Ma - South, J. 1826RSPT..116....1S
S__1826 Phil. Trans. R. Soc., 116, Pt.1, 1826
S__1844A Ma - South, J. 1844QB43.S66.......
S__1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
S__1852A Ma - South, J. .
S__1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
S__1880A Ma - South, J. 1880MNRAS..40..497B
S__1880A cited by Burnham (MNRAS 40, 497, 1880)
S__1906A Ma - South, J. 1906MmRAS..56....1L
S__1906A cited by Lewis (MemRAS 56, 1, 1906)
S__1906B Ma - South, J. 1906QB821.B972.....
S__1906B cited in BDS (Burnham Double Star Cat., 1906)
S__1913A Ma - South, J. 1913QB811.B8.......
S__1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
S__1922A Ma - South, J. 1922AN....216...49R
S__1922A cited by Rabe (AN 216, 49, 1922)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17178+2844 S 686 2003 16 4 50.4 8.17 9.30 A2 N D 171748.11+284400.4
17178+2844 S 686 2012 18 4 50.0 8.17 9.30 A2 N D 171748.11+284400.4
17178+2844 S 686 2013 19 4 50.1 8.17 9.30 A2 N 171748.11+284400.4
17178+2844 S 686 2014 20 4 51.0 8.17 9.30 A2 N 171748.11+284400.4
17178+2844 S 686 2015 23 4 50.0 8.17 9.30 A2 N 171748.11+284400.4

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