WDS 20111+1611 ENG 71 AB (HD 191785) : NOTES
 
 
discov_num notes refcode
GIC 163 Aa = G143-034/G143-035 = GJ 783.2AB.
Aa,Ab: NLTT 48851/48854 Chm2004
HZG 15 AD: Rectilinear solution by Friedman et al. (2011). USN2011a
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
USN2011a lin - Friedman, E.A., Mason, B.D., & Hartkopf, W.I. 2011IAUDS.175....1F
USN2011a Inf. Circ. 175, 1, 2011
 
 
DISCOVERER
 
 
idgroup discov author
1 BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1 ENG changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
32 GIC Giclas, H., Burnham, R. & Thomas, N.
37 HLA Hirsch, L.A., Ciardi, D.R., Howards, A.W., Marcy, G.W., Ruane, G., Gonzalez, E.,
37 HLA Blunt, S., Crepp, J.R., Fulton, B.J., Isaacson, H., Kosiarek, M., Mawet, D.,
37 HLA Sinukoff, E. & Weiss, L.
38 HLA Hirsch, L.A., Rosenthal, L., Fulton, B.J., Howard, A.W., Ciardi, D.R., Marcy, G.W.,
38 HLA Nielsen, E., Petigura, E.A., de Rosa, R.J., Isaacson, H., Weiss, L.M., Sinukoff, E.
40 HZG Hertzsprung, E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20111+1611 ENG 71 AB 2002 9 148 205.4 7.42 9.67 K1V LD 201106.07+161116.7
20111+1611 ENG 71 AB 2008 10 147 209.2 7.42 9.67 K1V LD 201106.07+161116.7
20111+1611 ENG 71 AB 2013 12 148 209.2 7.42 9.67 K1V NL 201106.07+161116.7
20111+1611 ENG 71 AB 2014 13 148 212.0 7.42 9.67 K1V NL 201106.07+161116.7
20111+1611 ENG 71 AB 2015 14 148 212.3 7.42 9.67 K1V NL 201106.07+161116.7

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