WDS 13461+0507 STF 1781 AB (HT Vir) : NOTES
 
 
discov_num notes refcode
STF1781 One of the stars is probably variable. Baz1972
One component is a W UMa-type eclipsing binary. Wor1956b
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
One component is a W UMa-type eclipsing binary. A is the variable HT
Vir. Errors for orbit of Alzner (2007) provided by author (private Alz2007
comm.) With the Hipparcos parallax of 15.39 +/- 2.72 mas, the Alzner
solution yields a mass sum of 3.98Msun.
 
 
REFERENCES
 
 
refcode metd author reference
Alz2007 orb - Alzner, A. 2007IAUDS.163....1A
Alz2007 Inf. Circ. 163, 1, 2007
Baz1972 Ma j Baize, P. 1972A&AS....6..147B
Baz1972 +orb A&AS 6, 147, 1972
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Wor1956b Ma - Worley, C.E. 1956AJ.....61..162W
Wor1956b AJ 61, 162, 1956
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
34 TOK Tokovinin, A.A.
81 TOK Tokovinin, A.A., Balega, Y.Y., Pluzhnik, E.A., Shatsky, N.I., Gorynya, N.A., &
81 TOK Weigelt, G.
95 TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
95 TOK Martinez, M., & Mondaca, E.
163 TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
163 TOK Ratzloff, J. & Walter, F.M.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13461+0507 STF1781 AB 2014 287 193 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2015 289 198 0.9 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2016 290 195 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2017 291 195 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2019 294 198 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2020 297 198 1.1 7.89 8.10 F8V+F0 NO 134606.75+050656.1

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