WDS 22016+4921 ES 831 AD : NOTES
 
 
discov_num notes refcode
ES 831 AD: Rectilinear solution by Hartkopf & Mason (2015). WSI2015
AE: Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
REFERENCES
 
 
refcode metd author reference
USN2014b lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.183....1H
USN2014b Inf. Circ. 183, 1, 2014
WSI2015 Cu j Hartkopf, W.I. & Mason, B.D. 2015AJ....150..130H
WSI2015 +orb AJ 150, 136, 2015
WSI2015 +lin
 
 
DISCOVERER
 
 
idgroup discov author
1 ABH Abt, H.A.
29 ES Espin, T.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22016+4921 ES 831 AD 1999 5 27 14.5 9.55 11.90 A3Vp D 220133.94+492108.7
22016+4921 ES 831 AD 2010 6 25 14.0 9.55 11.90 A3Vp D 220133.94+492108.7
22016+4921 ES 831 AD 2013 8 26 13.9 9.55 11.90 A3Vp U 220133.94+492108.7
22016+4921 ES 831 AD 2015 10 26 13.8 9.55 11.90 A3Vp U 220133.94+492108.7

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