WDS 07346+3153 STF 1110 CD : NOTES
 
 
discov_num notes refcode
STF1110 alp Gem = 66 Gem = Castor. STFB 4. According to R.G. Aitken, this was A__1935f
discovered in 1719 by Bradley and Pound. Mt. Wilson spectral types Bdy1832A
A2,A2,M1. A and B are both SB1's with P = 9.21 d and 2.93 d. Pnd1832A
Castor A is also reported to exhibit x-ray and radio emission.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Star C (mag. 9.1, M1Ve) is the spectroscopic and detached eclipsing
binary YY Gem (P = 0.81 d), 70" from the center of AB and in slow
retrograde motion (cf., Heintz), so the object is sextuple. Hei1960a
AB: H 2 1. MEv2010
AB: Additional notes may be found in Fu et al. (1997) McA1997
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 5.43 +/- 0.97, 4.27, and 4.28 Msun, respectively. Mlk2012
Components Aa, Ab, Ba and Bb determined to have masses of 2.74+/-0.11, Ana2015
0.37+/-0.09, 2.26+/-0.10 and 0.53+/-0.09 \Msun, respectively.
Aa,Ba MYSTIC uniform disk dia. = 1.271 +/- 0.012, 0.994 +/- 0.014 mas.
Aa,Ba MIRC-X uniform disk dia. = 1.273 +/- 0.003, 1.005 +/- 0.008 mas.
Aa,Ab masses = 2.371 +/- 0.015, 0.3859+/- 0.0018 \msun.
Ba,Bb masses = 1.789 +/- 0.016, 0.3865+/- 0.0020 \msun. CIA2022d
Many historic AB measures corrected and missing measures added. CIA2022d
 
 
REFERENCES
 
 
refcode metd author reference
A__1935f - Aitken, R.G. 1935QB821.A3.......
A__1935f The Binary Stars, 1935
Ana2015 N - Andrade, M. & Docobo, J.A. 2015ASPC..496...94A
Ana2015 ASP Conference Series 496, 94, 2015
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Bdy1832A Ma - Bradley, J. 1833MmRAS...5...13H
Bdy1832A Memoirs, Oxford, 1832
Bdy1832A (as cited by Herschel, MemRAS 5, 13, 1833)
CIA2022d Kc+ j Torres, G., Schaefer, G.H., Monnier, J.D., Anugu, N., Davies, C.L., Ennis, J., 2022ApJ..941.....8T
CIA2022d +orb Farrington, C.D., Gardner, T., Klement, R., Kraus, S., Labdon, A., Lanthermann, C.,
CIA2022d Le Bouquin, J.-B., Setterholm, B.R. & ten Brummelaar, T.
CIA2022d ApJ 941, 8, 2022
Hei1960a orb - Heintz, W.D. 1960VeMun...5...87H
Hei1960a Veroff. Sternw. Munchen 5, 87-114, 1960
McA1997 Sc j Fu, H.-H., Hartkopf, W.I., Mason, B.D., McAlister, H.A., Dombrowski, E.G., & 1997AJ....114.1623F
McA1997 Franz, O.G.
McA1997 AJ 114, 1623, 1997
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
Pnd1832A Ma - Pound, J. 1833MmRAS...5...13H
Pnd1832A from Bradley Memoirs, 1832
Pnd1832A (as cited by Herschel, MemRAS 5, 13, 1833)
 
 
DISCOVERER
 
 
idgroup discov author
1 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
07346+3153 STF1110 CD 2009 4 244 155.6 9.83 10.07 N 073437.45+315210.2
07346+3153 STF1110 CD 2015 6 244 154.9 9.83 10.07 M0Ve N 073437.45+315210.2

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