WDS 13020+4241 JNN 84 : NOTES
 
 
discov_num notes refcode
JNN 84 The companion to 2MASS J13015919+4241160 is clearly inconsistent with
a background contaminant, but the astrometry is also inconsistent with
a simple orbital motion of B around A - for instance, the separation
decreases from June 2008 to February 2009, but then increases again to
June 2009. This could for instance imply that either A or B is a close
unresolved binary, where the photo-center shifts on a shorter
timescale than that of the AB orbit. Jnn2012
 
 
REFERENCES
 
 
refcode metd author reference
Jnn2012 Cl j Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S., 2012ApJ...754...44J
Jnn2012 +E2 Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012 ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b) 2014ApJS..214...17J
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13020+4241 JNN 84 2009 4 248 2.9 15.20 17.10 M2 M4 130159.19+424116.4
13020+4241 JNN 84 2015 5 248 2.9 15.20 17.10 M2+M4 N 130159.19+424116.4
13020+4241 JNN 84 2016 8 248 2.9 15.20 17.10 M2+M4 N 130159.19+424116.4

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