WDS 17558+3117 SEI 552 : NOTES
 
 
discov_num notes refcode
SEI 552 ES 342.
 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17558+3117 SEI 552 1998 9 234 5.6 10.57 11.30 D 175549.46+311752.8
17558+3117 SEI 552 2008 10 235 5.6 10.57 11.30 D 175549.46+311752.8
17558+3117 SEI 552 2010 12 236 4.6 10.57 11.30 N 175549.46+311752.8
17558+3117 SEI 552 2015 13 234 5.6 10.57 11.30 N 175549.46+311752.8

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