WDS 20136+4644 BU 1483 CG : NOTES
 
 
discov_num notes refcode
WRH 33 Aa,Ab: 31 Cyg = omi 1 Cyg. A spectroscopic, eclipsing, astrometric,
interferometric binary. A is the zeta Aurigae-type binary V695 Cyg.
It is spectrum K4Ib+B3-4.
Aa,Ab: Star D noted as single. See Wilson (1950) for extensive notes
on comparison of measures with orbits, mass estimates, etc. WRH1950a
Aa,Ab: Reality of these measures would seem more questionable than
those published in 1950. WRH1951
Aa,Ab: Attempted to observe visually this 10yr binary which passed
eclipse late in 1951. WRH1954b
Aa,Ab: Correction for magnitude difference should increase this
estimated separation. WRH1955
Aa,Ab seen single in 1953, resolved once again by McAlister in 1980. McA1983
1983.4905: Our ACFs do not resolve the system with much confidence
(theta ~168 deg, rho ~0".029). Bag1984a
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Wright (1970). Wri1970
Mk III Limb-darkened diameter 4.47 +/- 0.06 mas. MkT2001
Mk III Limb-darkened diameter 4.362 +/- 0.044 mas. MkT2003
NPOI Limb-darkened diameter 4.49 +/- 0.06 mas. NOI2001b
GUI 30 D: 30 Cyg.
STFA 50 STTA204.
AC: H 6 10. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984a S j Balega, Y.Y. & Ryadchenko, V.P. 1984SvAL...10...95B
Bag1984a SvAL 10, 95, 1984
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
McA1983 Sc j McAlister, H.A., Hendry, E.M., Hartkopf, W.I., Campbell, B.G., & Fekel, F.C. 1983ApJS...51..309M
McA1983 ApJS 51, 309, 1983
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
MkT2001 not j Nordgren, T.E., Sudol, J.J. & Mozurkewich, D. 2001AJ....122.2707N
MkT2001 AJ 122, 2707, 2001 .
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
NOI2001b not j Nordgren, T.E., Sudol, J.J. & Mozurkewich, D. 2001AJ....122.2707N
NOI2001b AJ 122, 2707, 2001 .
WRH1950a J j Wilson, R.H. 1950AJ.....55..153W
WRH1950a +Ma AJ 55, 153, 1950
WRH1950a (U and T coded observations per van den Bos, J Obs 34, 85, 1951) 1951JO.....34...85V
WRH1951 J j Wilson, R.H. 1951AJ.....56...69W
WRH1951 +Ma AJ 56, 69, 1951
WRH1951 (U and T coded observations per van den Bos, J Obs 34, 85, 1951) 1951JO.....34...85V
WRH1954b J j Wilson, R.H. 1954AJ.....59..256W
WRH1954b +Ma AJ 59, 256, 1954
WRH1955 J j Wilson, R.H. 1955AJ.....60..446W
WRH1955 +Ma AJ 60, 446, 1955
Wri1970 - Wright, K.O. 1970VA.....12..147W
Wri1970 Vistas Astr. 12, 147, 1970
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 ES Espin, T.E.
274 GUI Guillaume, J.
279 HJ Herschel, J.F.W.
328 SMR Schlimmer, J.
383 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
20136+4644 BU 1483 CG 2000 2 95 37.8 6.97   D 201339.20+464242.6
20136+4644 BU 1483 CG 2003 3 95 37.9 6.97 14.20 N D 201339.20+464242.6

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