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Doubles in session


Current system
18501+3322
STFA 39 AB
Sheliak


Nearby doubles
9' : 18495+3316
STF2407

12' : 18506+3313
TAR 3AB

12' : 18494+3324
J 765

17' : 18488+3319
HJ 1349AB

23' : 18493+3301
ES 2287

25' : 18491+3343
UC 3682

28' : 18523+3321
ES 2233AB

34' : 18498+3249
H 5 40AB

39' : 18527+3301
BAR 46AB

41' : 18473+3302
TDS 945

43' : 18487+3401
HU 936

45' : 18533+3302
POP 192

46' : 18476+3248
COU1154

48' : 18536+3303
HL 9001AB

49' : 18499+3233
HO 440

50' : 18469+3254
KPP4121

50' : 18462+3328
COU1152

53' : 18518+3410
GYL 10

53' : 18537+3256
ITF 165

54' : 18496+3415
COU1155

59' : 18546+3311
ES 2234

59' : 18515+3418
DAM1253

59' : 18497+3223
J 131

61' : 18548+3306
DAL 10

63' : 18475+3415
KPP4122

64' : 18461+3242
SEI 575



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 18501+3322 STFA 39 AB (Sheliak) : NOTES
 
 
discov_num notes refcode
STFA 39 STTA175. A is 10 Lyr = Sheliak = bet Lyr, the prototype variable of
its class. B is BD+33@3224.
AB: H 5 3. MEv2010
CIA 3 Aa1,2: bet Lyr. Eclipsing binary (P=12.9d) resolved by CHARA Array
(Zhao et al. 2008). Reductions by two techniques (MACIM and BSMEM) and CIA2008b
a model fit listed in paper; MACIM and BSMEM results given in WDS and
Interferometric Catalog. Three possible orbital solutions also given,
adopting period and Tmin from Ak et al. (2007 A&A 463, 233) and e=0
(Harmanec 2002 ANac 323, 87). These yield distance estimates ranging
from 271 to 313 pc; masses for the gainer and donor are 12.76 +/- 0.27
and 2.83 +/- 0.18 Msun, respectively.
Aa1,2: Malkov et al. (2012) derive dynamical and spectroscopic masses
19.84 +/- 11.13 and 15.84 Msun, respectively. Mlk2012
In addition to the close pair there is also a hot spot with a size of IAU2014b
22-33 solar radii. What is unknown is where the mass is lost and how
much matter is in the jets.
 
 
REFERENCES
 
 
refcode metd author reference
CIA2008b Kc j Zhao, M., Gies, D., Monnier, J.D., Thureau, N., Pedretti, E., Baron, F., 2008ApJ...684L..95Z
CIA2008b +orb Merand, A., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Turner, N.,
CIA2008b Sturmann, J., Sturmann, L., Farrington, C., & Goldfinger, P.J.
CIA2008b ApJ 684, L95, 2008
IAU2014b - Lomax, J. (IAU Symposium 307, in press) .
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 RBR Roberts, L.C., Jr. & Neyman, C.R.
180 RBR Roberts, L.C., Jr., Turner, N.H., Bradford, L.W., ten Brummelaar, T., Oppenheimer,
180 RBR B., Kuhn, J., Whitman, K., Perrin, M., et al.
185 RBR Roberts, L.C., Jr., Gies, D.R., Parks, J.R., Grundstrom, E.D., McSwain, M.,
185 RBR Berger, D., Mason, B., ten Brummelaar, T. & Turner, N.
192 RBR Roberts, L.C., Jr., Turner, N.H., ten Brummelaar, T.A., Mason, B.D., &
192 RBR AJ 142, 175, 2011
192 RBR Roberts, L.C., Jr., Rice, E.L., Beichman, C.A., Brenner, D., Burruss, R.,
192 RBR Crepp, J.R., Dekany, R.G., Hillenbrand, L.A., Hinkley, S., Ligon, E.R.,
192 RBR Lockhart, T.G., King, D., et al.
193 RBR Roberts, L.C., Jr., Bouchez, A.H., Roberts, J.E., Burruss, R., Crepp, J.R., Mawet,
193 RBR D., Ohara, C.M., Cromer, J.L., Dekany, R.G., Troy, M., Velur, V. & Li, J.
194 RBR Roberts, L.C., Jr., Tokovinin, A., Mason, B.D., Riddle, R.L., Hartkopf, W.I.,
194 RBR Law, N.M., & Baranec, Ch.
195 RBR Roberts, L.C., Jr., Mason, B.D., Neyman, C.R., Wu, Y., Riddle, R.L., Shelton, J.,
195 RBR Angione, J., Baranec, Ch., Bouchez, A., Bui, K., Burruss, R., Burse, M., et al.
196 RBR Roberts, L.C., Jr., Oppenheimer, R., Crepp, J.R., Baranec, Ch., Beichman, C.A.,
196 RBR Brenner, D., Burruss, R., Cady, E., Luszcz-Cook, S., Dekany, R.,
196 RBR Hillenbrand, L.A., Hinkley, S., et al.
199 RBR Roberts, L.C., Jr., Mason, B.D., Aguilar, J., Carson, J., Crepp, J., Beichman, C.,
199 RBR Brenner, D., Burruss, R., Cady, E., Luszcz-Cook, S., Dekany, R., Hillenbrand, L.,
199 RBR et al.
204 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18501+3322 STFA 39 AB 2008 95 150 45.4 3.63 6.69 B7Ve+A8p N D 185004.79+332145.6
18501+3322 STFA 39 AB 2009 101 148 45.4 3.63 6.69 B7Ve+A8p N D 185004.79+332145.6
18501+3322 STFA 39 AB 2011 103 148 48.6 3.63 6.69 B7Ve A8p N D 185004.79+332145.6
18501+3322 STFA 39 AB 2012 108 147 44.8 3.63 6.69 B7Ve A8p N D 185004.79+332145.6
18501+3322 STFA 39 AB 2014 112 148 45.7 3.63 6.69 B7Ve A8p N D 185004.79+332145.6
18501+3322 STFA 39 AB 2015 115 148 45.6 3.63 6.69 B7Ve+A8p N 185004.79+332145.6
18501+3322 STFA 39 AB 2016 116 77 4.4 3.63 6.69 B7Ve+A8p N 185004.79+332145.6
18501+3322 STFA 39 AB 2017 117 149 45.7 3.63 6.69 B7Ve+A8p N 185004.79+332145.6

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