WDS 20145+3640 BLL 48 AB (V1679 Cyg) : NOTES
 
 
discov_num notes refcode
RJJ 1 Aa,Ab: Primary is Wolf-Rayet WR 137, distance 1300pc. First resolved
with IOTA array by Rajagopal (2010), later confirmed with CHARA Array RjJ2010
by Richardson et al. (2016). Richardson et al. infer the following
stellar parameters for the WR star and its close companion:
Spectral types: WC7pd O9 V
T* (K) 60000 +/- 5000 32000 +/- 2000
log L (Lsun) 5.22 +/-0.05 4.75 +/- 0.05
R* (Rsun) 3.8 +/- 1 7.7 +/- 1 CIA2016b
 
 
REFERENCES
 
 
refcode metd author reference
CIA2016b Kc j Richardson, N.D., Shenar, T., Roy-Loubier, O., Schaefer, G., Moffat, A.F.J., 2016MNRAS.461.4115R
CIA2016b St-Louis, N., Gies, D.R., Farrington, C., Hill, G.M., Williams, P.M.,
CIA2016b Gordon, K., Pablo, H., & Ramiaramanantsoa, T.
CIA2016b MNRAS 461, 4115, 2016
RjJ2010 Ki - Rajagopal J. 2010RMxAC..38...54R
RjJ2010 Rev. Mex. Astron. Astrofis. Ser. Conf. 38, 54, 2010
 
 
DISCOVERER
 
 
idgroup discov author
1 BLL Ball, R.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20145+3640 BLL 48 AB 2003 16 118 113.6 7.97 10.06 WC N 201431.77+363939.6
20145+3640 BLL 48 AB 2015 17 117 113.6 7.97 10.06 WC N 201431.77+363939.6

If you need more information about this double, apply for a data request form to the WDS.