WDS 23191-1328 STF 2998 AB : NOTES
 
 
discov_num notes refcode
MCA 74 94 Aqr. A is a long-period spectroscopic binary now resolved by
speckle interferometry.
Soderhjelm give triple solution with B (HIP 115125) instead of poor Sod1999
Hipparcos solution. The primary is overmassive, probably sp. bin.,
cf. analysis of the spectroscopic/interferometric orbit by McAlister
& Hendry (1982) McA1982c
Analysis of this observation by the techniques in use in 1985 was
unable to yield a useable result. Hrt1992b
1977.6350: This epoch was incorrectly given as 1977.6359. McA1982b
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 1.55 +/- 0.87, 1.98, and 1.20 Msun, respectively. Mlk2012
STF2998 AB: H 3 34. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Hrt1992b Sc j Hartkopf, W.I., McAlister, H.A., & Franz, O.G. 1992AJ....104..810H
Hrt1992b AJ 104, 810, 1992
McA1982b Sc j McAlister, H.A. & Hendry, E.M. 1982ApJS...48..273M
McA1982b ApJS 48, 273, 1982
McA1982c orb - McAlister, H.A. & Hartkopf, W.I. 1982PASP...94..832M
McA1982c +Sc PASP 94, 832, 1982
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
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
 
 
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
23191-1328 STF2998 AB 2007 233 351 12.3 5.27 6.97 D 231906.51-132730.4
23191-1328 STF2998 AB 2009 235 356 12.2 5.27 6.97 N D 231906.51-132730.4
23191-1328 STF2998 AB 2010 236 352 12.3 5.27 6.97 N D 231906.51-132730.4
23191-1328 STF2998 AB 2012 239 351 12.6 5.27 6.97 N D 231906.51-132730.4
23191-1328 STF2998 AB 2014 241 352 12.3 5.27 6.97 G5IV N D 231906.51-132730.4
23191-1328 STF2998 AB 2016 243 353 12.3 5.27 6.97 G5IV N 231906.66-132730.8
23191-1328 STF2998 AB 2017 245 352 12.2 5.27 6.97 G5IV N 231906.66-132730.8
23191-1328 STF2998 AB 2018 247 353 12.1 5.27 6.97 G5IV N 231906.66-132730.8

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