WDS 19307+2758 STFA 43 AB (Albireo) : NOTES
 
 
discov_num notes refcode
MCA 55 Aa,Ab: bet 1 Cyg = bet Cyg A = Albireo = 6 Cyg A. Resolved in 1976 by
speckle interferometry and has also been seen visually. McA1982b
See the discussion of colors and magnitudes of this composite spectrum
system by Bonneau & Foy (1980). Bnu1980a
1977.4816: This object was incorrectly attributed to the system ADS
12540 = STF 43 by McAlister (1979). McA1979b
McAlister & Hendry (1982) also note a distant companion. McA1982b
1983.4904: The distant companion reported by McAlister & Hendry (1982) McA1982b
would be located beyond our 0".371 ACF window. Bag1984a
Spectral types of primary and secondary assigned by ten Brummelaar et
al., based on adaptive optics observations. TtB2000
1998.657: Absolute quadrant determined by triple-correlation technique Pru2002b
Aa,Ac: Malkov et al. (2012) derive dynamical and spectroscopic masses
50.66 +/- 15.18 and 22.40 Msun, respectively. Mlk2012
Mk III Limb-darkened diameter 4.834 +/- 0.048 mas. MkT2003
STFA 43 STTA183.
AB: B is BD+27@3411, spectrum B8V.
The physicality of this wide pair has been discussed by Griffin. Grf1999b
1995.559: Absolute quadrant determined by triple-correlation technique Pru2002b
AB: H 5 5. MEv2010
While A & B may share a common origin, it seems virtually certain that Bst2018
are not physically associated with each other. The parallax of A is
9.95+/-0.60 mas while B is 8.38+/-0.17 mas.
RBR 12 Ba,Bb: First resolved in 2002, after multiple non-detections, this is Rbr2007
now thought to be a measure of the known Aa,Ab pair MCA 55 with a much Rbr2013a
larger than expected position angle error.
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984a S j Balega, Y.Y. & Ryadchenko, V.P. 1984SvAL...10...95B
Bag1984a SvAL 10, 95, 1984
Bnu1980a S j Bonneau, D. & Foy, R. 1980A&A....86..295B
Bnu1980a A&A 86, 295, 1980
Bst2018 not Bastian, U. & Anton, R. 2018A&A...620L...2B
Bst2018 A&AL 620, 2, 2018
Grf1999b not - Griffin, R.F. 1999JRASC..93..208G
Grf1999b JRASC 93, 208, 1999
McA1979b Sc j McAlister, H.A. 1979ApJ...230..497M
McA1979b ApJ 230, 497, 1979
McA1982b Sc j McAlister, H.A. & Hendry, E.M. 1982ApJS...48..273M
McA1982b ApJS 48, 273, 1982
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
MkT2003 Km - Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A., 2003AJ....126.2502M
MkT2003 +not Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003 AJ 126, 2502, 2003
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Pru2002b S j Prieur, J.-L., Koechlin, L., Ginestet, N., Carquillat, J.-M., Aristidi, E., 2002ApJS..142...95P
Pru2002b Scardia, M., Arnold, L., Avila, R., et al.
Pru2002b ApJS 142, 95, 2002
Rbr2007 A j Roberts, L.C., Jr., Turner, N.H., & ten Brummelaar, T.A. 2007AJ....133..545R
Rbr2007 AJ 133, 545, 2007
Rbr2013a Ac j Roberts, L.C., Jr., Bouchez, A.H., Roberts, J.E., Burruss, R., Crepp, J.R., Mawet, .
Rbr2013a D., Ohara, C.M., Cromer, J.L., Dekany, R.G., Troy, M., Velur, V. & Li, J.
Rbr2013a in preparation
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
idgroup discov author
1 CTT Courtot, J.-F.
46 SMR Schlimmer, J.
101 STF Struve, F.G.W.
134 WAL Wallenquist, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19307+2758 STFA 43 AB 2008 252 56 37.1 3.19 4.68 NZD 193043.29+275734.9
19307+2758 STFA 43 AB 2009 258 55 34.6 3.19 4.68 NZD 193043.29+275734.9
19307+2758 STFA 43 AB 2010 260 54 34.3 3.19 4.68 NZD 193043.29+275734.9
19307+2758 STFA 43 AB 2012 266 55 35.4 3.19 4.68 NZD 193043.29+275734.9
19307+2758 STFA 43 AB 2014 273 54 34.3 3.19 4.68 K3II+B9.5 NZD 193043.29+275734.9
19307+2758 STFA 43 AB 2016 277 54 34.7 3.19 4.68 K3II+B9.5 NZ 193043.29+275734.9
19307+2758 STFA 43 AB 2017 278 54 34.6 3.19 4.68 K3II+B9.5 NZ 193043.29+275734.9
19307+2758 STFA 43 AB 2018 280 55 34.7 3.19 4.68 K3II+B9.5 NS 193043.29+275734.9
19307+2758 STFA 43 AB 2019 286 54 35.2 3.19 4.68 K3II+B9.5 NS 193043.29+275734.9
19307+2758 STFA 43 AB 2020 288 54 34.6 3.19 4.68 K3II+B9.5 NS 193043.29+275734.9
19307+2758 STFA 43 AB 2021 290 54 34.7 3.19 4.68 K3II+B9.5 NS 193043.29+275734.9
19307+2758 STFA 43 AB 2022 291 54 34.6 3.19 4.68 K3II+B9.5 NS 193043.29+275734.9

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