WDS 04218+1929 SIG 1 : NOTES
 
 
discov_num notes refcode
SIG 1 LP 415-20 = Bryja 262. Spectral types M7.0, M9.5. Probable Hyades
member. Estimated orbital period 23 +7/-6 yrs. Sig2003
Konopacky et al. (2010) derive a distance of 21. +/- 5. pc and a
system mass of 0.09 +/- 0.06 Msun. Kon2010
 
 
REFERENCES
 
 
refcode metd author reference
Dup2017 A j Dupuy, T.J. & Liu, M.C. 2017ApJS..231...15D
Dup2017 +orb ApJS 231, 15, 2017
Kon2010 Ag j Konopacky, Q.M., Ghez, A.M., Barman, T.S., Rice, E.L., Bailey, III, J.I., 2010ApJ...711.1087K
Kon2010 White, R.J., McLean, I.S., & Duchene, G.
Kon2010 ApJ 711, 1087, 2010
Sig2003 A j Siegler, N., Close, L.M., Mamajek, E.E., & Freed, M. 2003ApJ...598.1265S
Sig2003 ApJ 598, 1265, 2003
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04218+1929 SIG 1 2002 1 91 0.1 13.10 13.90 N 042149.56+192908.6
04218+1929 SIG 1 2008 5 63 0.1 13.10 13.90 M7+M9.5 NOD 042149.56+192908.6
04218+1929 SIG 1 2010 9 68 0.1 13.10 13.90 M7 M9.5 NOD 042149.56+192908.6
04218+1929 SIG 1 2012 20 75 0.2 13.10 13.90 M7+M9.5 NO 042149.56+192908.6

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