WDS 17080+3556 HU 1176 AB : NOTES
 
 
discov_num notes refcode
HU 1176 Van de Kamp & Moore point out that Eggen's orbit yields a mass sum Kam1966
of 52.5, 'an impossible figure'. Egg1945
The speckle observations now resolve the former ambiguity.
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Hartkopf et al. (1989). Hrt1989
Calculated mass sum is 3.32 +/- 0.39 Msun. Spectral types are early A
or F, but spectral class has been reported as either dwarf or giant.
This total mass is more consistent with dwarf stars. Mut2010b
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 3.09 +/- 0.14, 3.33, and 1.82 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Egg1945 orb - Eggen, O.J. 1945PASP...57..202E
Egg1945 PASP 57, 202, 1945
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Hrt1989 orb - Hartkopf, W.I., McAlister, H.A., & Franz, O.G. 1989AJ.....98.2275B
Hrt1989 AJ 98, 1014, 1989
Kam1966 - van de Kamp, P. & Moore 1966AJ.....71..524V
Kam1966 AJ 71, 524, 1966
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Mut2010b Kp - Muterspaugh, M.W., Hartkopf, W.I., Lane. B.F., O'Connell, J., Williamson, M., 2010AJ....140.1623M
Mut2010b Kulkarni, S.R., Konacki, M., Burke, B.F., Colavita, M.M., Shao, M., &
Mut2010b Wiktorowicz, S.J.
Mut2010b AJ 140, 1623, 2010
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
28 HU Hussey, W.F.
85 WAL Wallenquist, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17080+3556 HU 1176 AB 2006 151 187 0.1 6.10 6.10 A5m NOD 170802.08+355606.8
17080+3556 HU 1176 AB 2007 155 327 0.1 6.10 6.10 A5m NOD 170802.08+355606.8
17080+3556 HU 1176 AB 2008 157 171 0.1 6.10 6.10 A5m NOD 170802.08+355606.8
17080+3556 HU 1176 AB 2011 175 98 0.1 6.10 6.10 A5m NO 170802.08+355606.8
17080+3556 HU 1176 AB 2018 182 114 0.1 6.10 6.10 A5m NO 170802.08+355606.8

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