WDS 19091+3436 STF 2474 AB (HD 178911) : NOTES
 
 
discov_num notes refcode
STF2474 B is BD+34 3438.
AB: NLTT 47474/47473 Chm2004
AB: B is exoplanet host, P=71.5d. Tok2014d
CHR 84 Aa,Ab: 1985.5232: This autocorrelogram was remeasured; the new results
are listed here.
The paper by Tokovinin et al. (2000) also includes a combined Tok2000a
spectroscopic/astrometric solution for orbital elements and masses.
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 5.43 +/- 2.10, 2.39, and 1.02 Msun, respectively. Mlk2012
Aa,Ab: SB2, P=3.540y. Tok2014d
Combined solution by Farrington et al. (2014) yields masses 0.802 +/-
0.055 and 0.622 +/- 0.053 Msun, as well as an orbital parallax 28.26
+/- 1.70 mas. CIA2014a
 
 
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.)
CIA2014a Kf j Farrington, C.D., ten Brummelaar, T.A., Mason, B.D., Hartkopf, W.I., Mourard, D., 2014AJ....148...48F
CIA2014a +Kc Moravveji, E., McAlister, H.A., Turner, N.H., Sturmann, L., & Sturmann, J.
CIA2014a +orb AJ 148, 48, 2014
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2000a S u Tokovinin, A.A., Griffin, R.F., Balega, Y.Y., Pluzhnik, E.A., & Udry, S. 2000AstL...26..116T
Tok2000a +orb SvAL 26, 116, 2000
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 STF Struve, F.G.W.
36 WAL Wallenquist, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19091+3436 STF2474 AB 2007 66 263 15.7 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2008 67 263 16.0 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2010 68 263 15.5 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2012 69 263 15.9 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2013 70 262 16.0 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2014 76 263 15.9 6.78 7.88 G1V NZDV 190904.35+343559.9
19091+3436 STF2474 AB 2017 79 263 15.9 6.78 7.88 G1V NZ V 190904.35+343559.9
19091+3436 STF2474 AB 2018 83 264 15.9 6.78 7.88 G1V NZ V 190904.35+343559.9
19091+3436 STF2474 AB 2019 84 263 16.0 6.78 7.88 G1V NZ V 190904.35+343559.9

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